Adding upstream version 6.1.22-dfsg.upstream/6.1.22-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 4172 insertions, 0 deletions

diff --git a/include/iprt/cdefs.h b/include/iprt/cdefs.h
new file mode 100644
index 00000000..f45498ab
--- /dev/null
+++ b/include/iprt/cdefs.h
@@ -0,0 +1,4172 @@
+/** @file
+ * IPRT - Common C and C++ definitions.
+ */
+
+/*
+ * Copyright (C) 2006-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+#ifndef IPRT_INCLUDED_cdefs_h
+#define IPRT_INCLUDED_cdefs_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+
+/** @defgroup grp_rt_cdefs  IPRT Common Definitions and Macros
+ * @{
+ */
+
+/** @def RT_C_DECLS_BEGIN
+ * Used to start a block of function declarations which are shared
+ * between C and C++ program.
+ */
+
+/** @def RT_C_DECLS_END
+ * Used to end a block of function declarations which are shared
+ * between C and C++ program.
+ */
+
+#if defined(__cplusplus)
+# define RT_C_DECLS_BEGIN extern "C" {
+# define RT_C_DECLS_END   }
+#else
+# define RT_C_DECLS_BEGIN
+# define RT_C_DECLS_END
+#endif
+
+
+/*
+ * Shut up DOXYGEN warnings and guide it properly thru the code.
+ */
+#ifdef DOXYGEN_RUNNING
+# define __AMD64__
+# define __X86__
+# define RT_ARCH_AMD64
+# define RT_ARCH_X86
+# define RT_ARCH_SPARC
+# define RT_ARCH_SPARC64
+# define IN_RING0
+# define IN_RING3
+# define IN_RC
+# define IN_RT_RC
+# define IN_RT_R0
+# define IN_RT_R3
+# define IN_RT_STATIC
+# define RT_STRICT
+# define RT_NO_STRICT
+# define RT_LOCK_STRICT
+# define RT_LOCK_NO_STRICT
+# define RT_LOCK_STRICT_ORDER
+# define RT_LOCK_NO_STRICT_ORDER
+# define RT_BREAKPOINT
+# define RT_NO_DEPRECATED_MACROS
+# define RT_EXCEPTIONS_ENABLED
+# define RT_BIG_ENDIAN
+# define RT_LITTLE_ENDIAN
+# define RT_COMPILER_GROKS_64BIT_BITFIELDS
+# define RT_COMPILER_WITH_80BIT_LONG_DOUBLE
+# define RT_NO_VISIBILITY_HIDDEN
+# define RT_GCC_SUPPORTS_VISIBILITY_HIDDEN
+# define RT_COMPILER_SUPPORTS_VA_ARGS
+# define RT_COMPILER_SUPPORTS_LAMBDA
+#endif /* DOXYGEN_RUNNING */
+
+/** @def RT_ARCH_X86
+ * Indicates that we're compiling for the X86 architecture.
+ */
+
+/** @def RT_ARCH_AMD64
+ * Indicates that we're compiling for the AMD64 architecture.
+ */
+
+/** @def RT_ARCH_SPARC
+ * Indicates that we're compiling for the SPARC V8 architecture (32-bit).
+ */
+
+/** @def RT_ARCH_SPARC64
+ * Indicates that we're compiling for the SPARC V9 architecture (64-bit).
+ */
+#if !defined(RT_ARCH_X86) \
+ && !defined(RT_ARCH_AMD64) \
+ && !defined(RT_ARCH_SPARC) \
+ && !defined(RT_ARCH_SPARC64) \
+ && !defined(RT_ARCH_ARM)
+# if defined(__amd64__) || defined(__x86_64__) || defined(_M_X64) || defined(__AMD64__)
+#  define RT_ARCH_AMD64
+# elif defined(__i386__) || defined(_M_IX86) || defined(__X86__)
+#  define RT_ARCH_X86
+# elif defined(__sparcv9)
+#  define RT_ARCH_SPARC64
+# elif defined(__sparc__)
+#  define RT_ARCH_SPARC
+# elif defined(__arm__) || defined(__arm32__)
+#  define RT_ARCH_ARM
+# else /* PORTME: append test for new archs. */
+#  error "Check what predefined macros your compiler uses to indicate architecture."
+# endif
+/* PORTME: append new archs checks. */
+#elif defined(RT_ARCH_X86) && defined(RT_ARCH_AMD64)
+# error "Both RT_ARCH_X86 and RT_ARCH_AMD64 cannot be defined at the same time!"
+#elif defined(RT_ARCH_X86) && defined(RT_ARCH_SPARC)
+# error "Both RT_ARCH_X86 and RT_ARCH_SPARC cannot be defined at the same time!"
+#elif defined(RT_ARCH_X86) && defined(RT_ARCH_SPARC64)
+# error "Both RT_ARCH_X86 and RT_ARCH_SPARC64 cannot be defined at the same time!"
+#elif defined(RT_ARCH_AMD64) && defined(RT_ARCH_SPARC)
+# error "Both RT_ARCH_AMD64 and RT_ARCH_SPARC cannot be defined at the same time!"
+#elif defined(RT_ARCH_AMD64) && defined(RT_ARCH_SPARC64)
+# error "Both RT_ARCH_AMD64 and RT_ARCH_SPARC64 cannot be defined at the same time!"
+#elif defined(RT_ARCH_SPARC) && defined(RT_ARCH_SPARC64)
+# error "Both RT_ARCH_SPARC and RT_ARCH_SPARC64 cannot be defined at the same time!"
+#elif defined(RT_ARCH_ARM) && defined(RT_ARCH_AMD64)
+# error "Both RT_ARCH_ARM and RT_ARCH_AMD64 cannot be defined at the same time!"
+#elif defined(RT_ARCH_ARM) && defined(RT_ARCH_X86)
+# error "Both RT_ARCH_ARM and RT_ARCH_X86 cannot be defined at the same time!"
+#elif defined(RT_ARCH_ARM) && defined(RT_ARCH_SPARC64)
+# error "Both RT_ARCH_ARM and RT_ARCH_SPARC64 cannot be defined at the same time!"
+#elif defined(RT_ARCH_ARM) && defined(RT_ARCH_SPARC)
+# error "Both RT_ARCH_ARM and RT_ARCH_SPARC cannot be defined at the same time!"
+#endif
+
+/* Final check (PORTME). */
+#if    (defined(RT_ARCH_X86) != 0) \
+     + (defined(RT_ARCH_AMD64) != 0) \
+     + (defined(RT_ARCH_SPARC) != 0) \
+     + (defined(RT_ARCH_SPARC64) != 0) \
+     + (defined(RT_ARCH_ARM) != 0) \
+  != 1
+# error "Exactly one RT_ARCH_XXX macro shall be defined"
+#endif
+
+/** @def RT_GNUC_PREREQ
+ * Shorter than fiddling with __GNUC__ and __GNUC_MINOR__.
+ *
+ * @param   a_MinMajor      Minimum major version
+ * @param   a_MinMinor      The minor version number part.
+ */
+#define RT_GNUC_PREREQ(a_MinMajor, a_MinMinor)      RT_GNUC_PREREQ_EX(a_MinMajor, a_MinMinor, 0)
+/** @def RT_GNUC_PREREQ_EX
+ * Simplified way of checking __GNUC__ and __GNUC_MINOR__ regardless of actual
+ * compiler used, returns @a a_OtherRet for other compilers.
+ *
+ * @param   a_MinMajor      Minimum major version
+ * @param   a_MinMinor      The minor version number part.
+ * @param   a_OtherRet      What to return for non-GCC compilers.
+ */
+#if defined(__GNUC__) && defined(__GNUC_MINOR__)
+# define RT_GNUC_PREREQ_EX(a_MinMajor, a_MinMinor, a_OtherRet) \
+    ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((a_MinMajor) << 16) + (a_MinMinor))
+#else
+# define RT_GNUC_PREREQ_EX(a_MinMajor, a_MinMinor, a_OtherRet) (a_OtherRet)
+#endif
+
+/** @def RT_MSC_PREREQ
+ * Convenient way of checking _MSC_VER regardless of actual compiler used
+ * (returns false if not MSC).
+ *
+ * @param   a_MinVer        Preferably a RT_MSC_VER_XXX value.
+ */
+#define RT_MSC_PREREQ(a_MinVer)                     RT_MSC_PREREQ_EX(a_MinVer, 0)
+/** @def RT_MSC_PREREQ_EX
+ * Convenient way of checking _MSC_VER regardless of actual compiler used,
+ * returns @a a_OtherRet for other compilers.
+ *
+ * @param   a_MinVer        Preferably a RT_MSC_VER_XXX value.
+ * @param   a_OtherRet      What to return for non-MSC compilers.
+ */
+#if defined(_MSC_VER)
+# define RT_MSC_PREREQ_EX(a_MinVer, a_OtherRet)     ( (_MSC_VER) >= (a_MinVer) )
+#else
+# define RT_MSC_PREREQ_EX(a_MinVer, a_OtherRet)     (a_OtherRet)
+#endif
+/** @name RT_MSC_VER_XXX - _MSC_VER values to use with RT_MSC_PREREQ.
+ * @remarks The VCxxx values are derived from the CRT DLLs shipping with the
+ *          compilers.
+ * @{ */
+#define RT_MSC_VER_VC50     (1100)              /**< Visual C++ 5.0. */
+#define RT_MSC_VER_VC60     (1200)              /**< Visual C++ 6.0. */
+#define RT_MSC_VER_VC70     (1300)              /**< Visual C++ 7.0. */
+#define RT_MSC_VER_VC70     (1300)              /**< Visual C++ 7.0. */
+#define RT_MSC_VER_VS2003   (1310)              /**< Visual Studio 2003, aka Visual C++ 7.1. */
+#define RT_MSC_VER_VC71     RT_MSC_VER_VS2003   /**< Visual C++ 7.1, aka Visual Studio 2003. */
+#define RT_MSC_VER_VS2005   (1400)              /**< Visual Studio 2005. */
+#define RT_MSC_VER_VC80     RT_MSC_VER_VS2005   /**< Visual C++ 8.0, aka Visual Studio 2008. */
+#define RT_MSC_VER_VS2008   (1500)              /**< Visual Studio 2008. */
+#define RT_MSC_VER_VC90     RT_MSC_VER_VS2008   /**< Visual C++ 9.0, aka Visual Studio 2008. */
+#define RT_MSC_VER_VS2010   (1600)              /**< Visual Studio 2010. */
+#define RT_MSC_VER_VC100    RT_MSC_VER_VS2010   /**< Visual C++ 10.0, aka Visual Studio 2010. */
+#define RT_MSC_VER_VS2012   (1700)              /**< Visual Studio 2012. */
+#define RT_MSC_VER_VC110    RT_MSC_VER_VS2012   /**< Visual C++ 11.0, aka Visual Studio 2012. */
+#define RT_MSC_VER_VS2013   (1800)              /**< Visual Studio 2013. */
+#define RT_MSC_VER_VC120    RT_MSC_VER_VS2013   /**< Visual C++ 12.0, aka Visual Studio 2013. */
+#define RT_MSC_VER_VS2015   (1900)              /**< Visual Studio 2015. */
+#define RT_MSC_VER_VC140    RT_MSC_VER_VS2015   /**< Visual C++ 14.0, aka Visual Studio 2015. */
+/** @} */
+
+/** @def RT_CLANG_PREREQ
+ * Shorter than fiddling with __clang_major__ and __clang_minor__.
+ *
+ * @param   a_MinMajor      Minimum major version
+ * @param   a_MinMinor      The minor version number part.
+ */
+#define RT_CLANG_PREREQ(a_MinMajor, a_MinMinor)      RT_CLANG_PREREQ_EX(a_MinMajor, a_MinMinor, 0)
+/** @def RT_CLANG_PREREQ_EX
+ * Simplified way of checking __clang_major__ and __clang_minor__ regardless of
+ * actual compiler used, returns @a a_OtherRet for other compilers.
+ *
+ * @param   a_MinMajor      Minimum major version
+ * @param   a_MinMinor      The minor version number part.
+ * @param   a_OtherRet      What to return for non-GCC compilers.
+ */
+#if defined(__clang_major__) && defined(__clang_minor__)
+# define RT_CLANG_PREREQ_EX(a_MinMajor, a_MinMinor, a_OtherRet) \
+    ((__clang_major__ << 16) + __clang_minor__ >= ((a_MinMajor) << 16) + (a_MinMinor))
+#else
+# define RT_CLANG_PREREQ_EX(a_MinMajor, a_MinMinor, a_OtherRet) (a_OtherRet)
+#endif
+
+
+#if !defined(__X86__) && !defined(__AMD64__) && (defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86))
+# if defined(RT_ARCH_AMD64)
+/** Indicates that we're compiling for the AMD64 architecture.
+ * @deprecated
+ */
+#  define __AMD64__
+# elif defined(RT_ARCH_X86)
+/** Indicates that we're compiling for the X86 architecture.
+ * @deprecated
+ */
+#  define __X86__
+# else
+#  error "Check what predefined macros your compiler uses to indicate architecture."
+# endif
+#elif defined(__X86__) && defined(__AMD64__)
+# error "Both __X86__ and __AMD64__ cannot be defined at the same time!"
+#elif defined(__X86__) && !defined(RT_ARCH_X86)
+# error "__X86__ without RT_ARCH_X86!"
+#elif defined(__AMD64__) && !defined(RT_ARCH_AMD64)
+# error "__AMD64__ without RT_ARCH_AMD64!"
+#endif
+
+/** @def RT_BIG_ENDIAN
+ * Defined if the architecture is big endian.  */
+/** @def RT_LITTLE_ENDIAN
+ * Defined if the architecture is little endian.  */
+#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) || defined(RT_ARCH_ARM)
+# define RT_LITTLE_ENDIAN
+#elif defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64)
+# define RT_BIG_ENDIAN
+#else
+# error "PORTME: architecture endianess"
+#endif
+#if defined(RT_BIG_ENDIAN) && defined(RT_LITTLE_ENDIAN)
+# error "Both RT_BIG_ENDIAN and RT_LITTLE_ENDIAN are defined"
+#endif
+
+
+/** @def IN_RING0
+ * Used to indicate that we're compiling code which is running
+ * in Ring-0 Host Context.
+ */
+
+/** @def IN_RING3
+ * Used to indicate that we're compiling code which is running
+ * in Ring-3 Host Context.
+ */
+
+/** @def IN_RC
+ * Used to indicate that we're compiling code which is running
+ * in the Raw-mode Context (implies R0).
+ */
+#if !defined(IN_RING3) && !defined(IN_RING0) && !defined(IN_RC)
+# error "You must define which context the compiled code should run in; IN_RING3, IN_RING0 or IN_RC"
+#endif
+#if (defined(IN_RING3) && (defined(IN_RING0) || defined(IN_RC)) ) \
+ || (defined(IN_RING0) && (defined(IN_RING3) || defined(IN_RC)) ) \
+ || (defined(IN_RC)    && (defined(IN_RING3) || defined(IN_RING0)) )
+# error "Only one of the IN_RING3, IN_RING0, IN_RC defines should be defined."
+#endif
+
+
+/** @def ARCH_BITS
+ * Defines the bit count of the current context.
+ */
+#if !defined(ARCH_BITS) || defined(DOXYGEN_RUNNING)
+# if defined(RT_ARCH_AMD64) || defined(RT_ARCH_SPARC64) || defined(DOXYGEN_RUNNING)
+#  define ARCH_BITS 64
+# elif !defined(__I86__) || !defined(__WATCOMC__)
+#  define ARCH_BITS 32
+# else
+#  define ARCH_BITS 16
+# endif
+#endif
+
+/* ARCH_BITS validation (PORTME). */
+#if ARCH_BITS == 64
+ #if defined(RT_ARCH_X86) || defined(RT_ARCH_SPARC) || defined(RT_ARCH_ARM)
+ # error "ARCH_BITS=64 but non-64-bit RT_ARCH_XXX defined."
+ #endif
+ #if !defined(RT_ARCH_AMD64) && !defined(RT_ARCH_SPARC64)
+ # error "ARCH_BITS=64 but no 64-bit RT_ARCH_XXX defined."
+ #endif
+
+#elif ARCH_BITS == 32
+ #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_SPARC64)
+ # error "ARCH_BITS=32 but non-32-bit RT_ARCH_XXX defined."
+ #endif
+ #if !defined(RT_ARCH_X86) && !defined(RT_ARCH_SPARC) && !defined(RT_ARCH_ARM)
+ # error "ARCH_BITS=32 but no 32-bit RT_ARCH_XXX defined."
+ #endif
+
+#elif ARCH_BITS == 16
+ #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_SPARC) || defined(RT_ARCH_SPARC64) || defined(RT_ARCH_ARM)
+ # error "ARCH_BITS=16 but non-16-bit RT_ARCH_XX defined."
+ #endif
+ #if !defined(RT_ARCH_X86)
+ # error "ARCH_BITS=16 but RT_ARCH_X86 isn't defined."
+ #endif
+
+#else
+# error "Unsupported ARCH_BITS value!"
+#endif
+
+/** @def HC_ARCH_BITS
+ * Defines the host architecture bit count.
+ */
+#if !defined(HC_ARCH_BITS) || defined(DOXYGEN_RUNNING)
+# if !defined(IN_RC) || defined(DOXYGEN_RUNNING)
+#  define HC_ARCH_BITS ARCH_BITS
+# else
+#  define HC_ARCH_BITS 32
+# endif
+#endif
+
+/** @def GC_ARCH_BITS
+ * Defines the guest architecture bit count.
+ */
+#if !defined(GC_ARCH_BITS) || defined(DOXYGEN_RUNNING)
+# if defined(VBOX_WITH_64_BITS_GUESTS) || defined(DOXYGEN_RUNNING)
+#  define GC_ARCH_BITS  64
+# else
+#  define GC_ARCH_BITS  32
+# endif
+#endif
+
+/** @def R3_ARCH_BITS
+ * Defines the host ring-3 architecture bit count.
+ */
+#if !defined(R3_ARCH_BITS) || defined(DOXYGEN_RUNNING)
+# ifdef IN_RING3
+#  define R3_ARCH_BITS ARCH_BITS
+# else
+#  define R3_ARCH_BITS HC_ARCH_BITS
+# endif
+#endif
+
+/** @def R0_ARCH_BITS
+ * Defines the host ring-0 architecture bit count.
+ */
+#if !defined(R0_ARCH_BITS) || defined(DOXYGEN_RUNNING)
+# ifdef IN_RING0
+#  define R0_ARCH_BITS ARCH_BITS
+# else
+#  define R0_ARCH_BITS HC_ARCH_BITS
+# endif
+#endif
+
+
+
+/** @name RT_OPSYS_XXX - Operative System Identifiers.
+ * These are the value that the RT_OPSYS \#define can take. @{
+ */
+/** Unknown OS. */
+#define RT_OPSYS_UNKNOWN    0
+/** OS Agnostic. */
+#define RT_OPSYS_AGNOSTIC   1
+/** Darwin - aka Mac OS X. */
+#define RT_OPSYS_DARWIN     2
+/** DragonFly BSD. */
+#define RT_OPSYS_DRAGONFLY  3
+/** DOS. */
+#define RT_OPSYS_DOS        4
+/** FreeBSD. */
+#define RT_OPSYS_FREEBSD    5
+/** Haiku. */
+#define RT_OPSYS_HAIKU      6
+/** Linux. */
+#define RT_OPSYS_LINUX      7
+/** L4. */
+#define RT_OPSYS_L4         8
+/** Minix. */
+#define RT_OPSYS_MINIX      9
+/** NetBSD. */
+#define RT_OPSYS_NETBSD     11
+/** Netware. */
+#define RT_OPSYS_NETWARE    12
+/** NT (native). */
+#define RT_OPSYS_NT         13
+/** OpenBSD. */
+#define RT_OPSYS_OPENBSD    14
+/** OS/2. */
+#define RT_OPSYS_OS2        15
+/** Plan 9. */
+#define RT_OPSYS_PLAN9      16
+/** QNX. */
+#define RT_OPSYS_QNX        17
+/** Solaris. */
+#define RT_OPSYS_SOLARIS    18
+/** UEFI. */
+#define RT_OPSYS_UEFI       19
+/** Windows. */
+#define RT_OPSYS_WINDOWS    20
+/** The max RT_OPSYS_XXX value (exclusive). */
+#define RT_OPSYS_MAX        21
+/** @} */
+
+/** @def RT_OPSYS
+ * Indicates which OS we're targeting. It's a \#define with is
+ * assigned one of the RT_OPSYS_XXX defines above.
+ *
+ * So to test if we're on FreeBSD do the following:
+ * @code
+ *  #if RT_OPSYS == RT_OPSYS_FREEBSD
+ *  some_funky_freebsd_specific_stuff();
+ *  #endif
+ * @endcode
+ */
+
+/*
+ * Set RT_OPSYS_XXX according to RT_OS_XXX.
+ *
+ * Search:  #define RT_OPSYS_([A-Z0-9]+) .*
+ * Replace: # elif defined(RT_OS_\1)\n#  define RT_OPSYS RT_OPSYS_\1
+ */
+#ifndef RT_OPSYS
+# if defined(RT_OS_UNKNOWN) || defined(DOXYGEN_RUNNING)
+#  define RT_OPSYS RT_OPSYS_UNKNOWN
+# elif defined(RT_OS_AGNOSTIC)
+#  define RT_OPSYS RT_OPSYS_AGNOSTIC
+# elif defined(RT_OS_DARWIN)
+#  define RT_OPSYS RT_OPSYS_DARWIN
+# elif defined(RT_OS_DRAGONFLY)
+#  define RT_OPSYS RT_OPSYS_DRAGONFLY
+# elif defined(RT_OS_DOS)
+#  define RT_OPSYS RT_OPSYS_DOS
+# elif defined(RT_OS_FREEBSD)
+#  define RT_OPSYS RT_OPSYS_FREEBSD
+# elif defined(RT_OS_HAIKU)
+#  define RT_OPSYS RT_OPSYS_HAIKU
+# elif defined(RT_OS_LINUX)
+#  define RT_OPSYS RT_OPSYS_LINUX
+# elif defined(RT_OS_L4)
+#  define RT_OPSYS RT_OPSYS_L4
+# elif defined(RT_OS_MINIX)
+#  define RT_OPSYS RT_OPSYS_MINIX
+# elif defined(RT_OS_NETBSD)
+#  define RT_OPSYS RT_OPSYS_NETBSD
+# elif defined(RT_OS_NETWARE)
+#  define RT_OPSYS RT_OPSYS_NETWARE
+# elif defined(RT_OS_NT)
+#  define RT_OPSYS RT_OPSYS_NT
+# elif defined(RT_OS_OPENBSD)
+#  define RT_OPSYS RT_OPSYS_OPENBSD
+# elif defined(RT_OS_OS2)
+#  define RT_OPSYS RT_OPSYS_OS2
+# elif defined(RT_OS_PLAN9)
+#  define RT_OPSYS RT_OPSYS_PLAN9
+# elif defined(RT_OS_QNX)
+#  define RT_OPSYS RT_OPSYS_QNX
+# elif defined(RT_OS_SOLARIS)
+#  define RT_OPSYS RT_OPSYS_SOLARIS
+# elif defined(RT_OS_UEFI)
+#  define RT_OPSYS RT_OPSYS_UEFI
+# elif defined(RT_OS_WINDOWS)
+#  define RT_OPSYS RT_OPSYS_WINDOWS
+# endif
+#endif
+
+/*
+ * Guess RT_OPSYS based on compiler predefined macros.
+ */
+#ifndef RT_OPSYS
+# if defined(__APPLE__)
+#  define RT_OPSYS      RT_OPSYS_DARWIN
+# elif defined(__DragonFly__)
+#  define RT_OPSYS      RT_OPSYS_DRAGONFLY
+# elif defined(__FreeBSD__) /*??*/
+#  define RT_OPSYS      RT_OPSYS_FREEBSD
+# elif defined(__gnu_linux__)
+#  define RT_OPSYS      RT_OPSYS_LINUX
+# elif defined(__NetBSD__) /*??*/
+#  define RT_OPSYS      RT_OPSYS_NETBSD
+# elif defined(__OpenBSD__) /*??*/
+#  define RT_OPSYS      RT_OPSYS_OPENBSD
+# elif defined(__OS2__)
+#  define RT_OPSYS      RT_OPSYS_OS2
+# elif defined(__sun__) || defined(__SunOS__) || defined(__sun) || defined(__SunOS)
+#  define RT_OPSYS      RT_OPSYS_SOLARIS
+# elif defined(_WIN32) || defined(_WIN64)
+#  define RT_OPSYS      RT_OPSYS_WINDOWS
+# elif defined(MSDOS) || defined(_MSDOS) || defined(DOS16RM) /* OW+MSC || MSC || DMC */
+#  define RT_OPSYS      RT_OPSYS_DOS
+# else
+#  error "Port Me"
+# endif
+#endif
+
+#if RT_OPSYS < RT_OPSYS_UNKNOWN || RT_OPSYS >= RT_OPSYS_MAX
+# error "Invalid RT_OPSYS value."
+#endif
+
+/*
+ * Do some consistency checks.
+ *
+ * Search:  #define RT_OPSYS_([A-Z0-9]+) .*
+ * Replace: #if defined(RT_OS_\1) && RT_OPSYS != RT_OPSYS_\1\n# error RT_OPSYS vs RT_OS_\1\n#endif
+ */
+#if defined(RT_OS_UNKNOWN) && RT_OPSYS != RT_OPSYS_UNKNOWN
+# error RT_OPSYS vs RT_OS_UNKNOWN
+#endif
+#if defined(RT_OS_AGNOSTIC) && RT_OPSYS != RT_OPSYS_AGNOSTIC
+# error RT_OPSYS vs RT_OS_AGNOSTIC
+#endif
+#if defined(RT_OS_DARWIN) && RT_OPSYS != RT_OPSYS_DARWIN
+# error RT_OPSYS vs RT_OS_DARWIN
+#endif
+#if defined(RT_OS_DRAGONFLY) && RT_OPSYS != RT_OPSYS_DRAGONFLY
+# error RT_OPSYS vs RT_OS_DRAGONFLY
+#endif
+#if defined(RT_OS_DOS) && RT_OPSYS != RT_OPSYS_DOS
+# error RT_OPSYS vs RT_OS_DOS
+#endif
+#if defined(RT_OS_FREEBSD) && RT_OPSYS != RT_OPSYS_FREEBSD
+# error RT_OPSYS vs RT_OS_FREEBSD
+#endif
+#if defined(RT_OS_HAIKU) && RT_OPSYS != RT_OPSYS_HAIKU
+# error RT_OPSYS vs RT_OS_HAIKU
+#endif
+#if defined(RT_OS_LINUX) && RT_OPSYS != RT_OPSYS_LINUX
+# error RT_OPSYS vs RT_OS_LINUX
+#endif
+#if defined(RT_OS_L4) && RT_OPSYS != RT_OPSYS_L4
+# error RT_OPSYS vs RT_OS_L4
+#endif
+#if defined(RT_OS_MINIX) && RT_OPSYS != RT_OPSYS_MINIX
+# error RT_OPSYS vs RT_OS_MINIX
+#endif
+#if defined(RT_OS_NETBSD) && RT_OPSYS != RT_OPSYS_NETBSD
+# error RT_OPSYS vs RT_OS_NETBSD
+#endif
+#if defined(RT_OS_NETWARE) && RT_OPSYS != RT_OPSYS_NETWARE
+# error RT_OPSYS vs RT_OS_NETWARE
+#endif
+#if defined(RT_OS_NT) && RT_OPSYS != RT_OPSYS_NT
+# error RT_OPSYS vs RT_OS_NT
+#endif
+#if defined(RT_OS_OPENBSD) && RT_OPSYS != RT_OPSYS_OPENBSD
+# error RT_OPSYS vs RT_OS_OPENBSD
+#endif
+#if defined(RT_OS_OS2) && RT_OPSYS != RT_OPSYS_OS2
+# error RT_OPSYS vs RT_OS_OS2
+#endif
+#if defined(RT_OS_PLAN9) && RT_OPSYS != RT_OPSYS_PLAN9
+# error RT_OPSYS vs RT_OS_PLAN9
+#endif
+#if defined(RT_OS_QNX) && RT_OPSYS != RT_OPSYS_QNX
+# error RT_OPSYS vs RT_OS_QNX
+#endif
+#if defined(RT_OS_SOLARIS) && RT_OPSYS != RT_OPSYS_SOLARIS
+# error RT_OPSYS vs RT_OS_SOLARIS
+#endif
+#if defined(RT_OS_UEFI) && RT_OPSYS != RT_OPSYS_UEFI
+# error RT_OPSYS vs RT_OS_UEFI
+#endif
+#if defined(RT_OS_WINDOWS) && RT_OPSYS != RT_OPSYS_WINDOWS
+# error RT_OPSYS vs RT_OS_WINDOWS
+#endif
+
+/*
+ * Make sure the RT_OS_XXX macro is defined.
+ *
+ * Search:  #define RT_OPSYS_([A-Z0-9]+) .*
+ * Replace: #elif RT_OPSYS == RT_OPSYS_\1\n# ifndef RT_OS_\1\n#  define RT_OS_\1\n# endif
+ */
+#if RT_OPSYS == RT_OPSYS_UNKNOWN
+# ifndef RT_OS_UNKNOWN
+#  define RT_OS_UNKNOWN
+# endif
+#elif RT_OPSYS == RT_OPSYS_AGNOSTIC
+# ifndef RT_OS_AGNOSTIC
+#  define RT_OS_AGNOSTIC
+# endif
+#elif RT_OPSYS == RT_OPSYS_DARWIN
+# ifndef RT_OS_DARWIN
+#  define RT_OS_DARWIN
+# endif
+#elif RT_OPSYS == RT_OPSYS_DRAGONFLY
+# ifndef RT_OS_DRAGONFLY
+#  define RT_OS_DRAGONFLY
+# endif
+#elif RT_OPSYS == RT_OPSYS_DOS
+# ifndef RT_OS_DOS
+#  define RT_OS_DOS
+# endif
+#elif RT_OPSYS == RT_OPSYS_FREEBSD
+# ifndef RT_OS_FREEBSD
+#  define RT_OS_FREEBSD
+# endif
+#elif RT_OPSYS == RT_OPSYS_HAIKU
+# ifndef RT_OS_HAIKU
+#  define RT_OS_HAIKU
+# endif
+#elif RT_OPSYS == RT_OPSYS_LINUX
+# ifndef RT_OS_LINUX
+#  define RT_OS_LINUX
+# endif
+#elif RT_OPSYS == RT_OPSYS_L4
+# ifndef RT_OS_L4
+#  define RT_OS_L4
+# endif
+#elif RT_OPSYS == RT_OPSYS_MINIX
+# ifndef RT_OS_MINIX
+#  define RT_OS_MINIX
+# endif
+#elif RT_OPSYS == RT_OPSYS_NETBSD
+# ifndef RT_OS_NETBSD
+#  define RT_OS_NETBSD
+# endif
+#elif RT_OPSYS == RT_OPSYS_NETWARE
+# ifndef RT_OS_NETWARE
+#  define RT_OS_NETWARE
+# endif
+#elif RT_OPSYS == RT_OPSYS_NT
+# ifndef RT_OS_NT
+#  define RT_OS_NT
+# endif
+#elif RT_OPSYS == RT_OPSYS_OPENBSD
+# ifndef RT_OS_OPENBSD
+#  define RT_OS_OPENBSD
+# endif
+#elif RT_OPSYS == RT_OPSYS_OS2
+# ifndef RT_OS_OS2
+#  define RT_OS_OS2
+# endif
+#elif RT_OPSYS == RT_OPSYS_PLAN9
+# ifndef RT_OS_PLAN9
+#  define RT_OS_PLAN9
+# endif
+#elif RT_OPSYS == RT_OPSYS_QNX
+# ifndef RT_OS_QNX
+#  define RT_OS_QNX
+# endif
+#elif RT_OPSYS == RT_OPSYS_SOLARIS
+# ifndef RT_OS_SOLARIS
+#  define RT_OS_SOLARIS
+# endif
+#elif RT_OPSYS == RT_OPSYS_UEFI
+# ifndef RT_OS_UEFI
+#  define RT_OS_UEFI
+# endif
+#elif RT_OPSYS == RT_OPSYS_WINDOWS
+# ifndef RT_OS_WINDOWS
+#  define RT_OS_WINDOWS
+# endif
+#else
+# error "Bad RT_OPSYS value."
+#endif
+
+
+/**
+ * Checks whether the given OpSys uses DOS-style paths or not.
+ *
+ * By DOS-style paths we include drive lettering and UNC paths.
+ *
+ * @returns true / false
+ * @param   a_OpSys     The RT_OPSYS_XXX value to check, will be reference
+ *                      multiple times.
+ */
+#define RT_OPSYS_USES_DOS_PATHS(a_OpSys) \
+    (   (a_OpSys) == RT_OPSYS_WINDOWS \
+     || (a_OpSys) == RT_OPSYS_OS2 \
+     || (a_OpSys) == RT_OPSYS_DOS )
+
+
+
+/** @def CTXTYPE
+ * Declare a type differently in GC, R3 and R0.
+ *
+ * @param   GCType  The GC type.
+ * @param   R3Type  The R3 type.
+ * @param   R0Type  The R0 type.
+ * @remark  For pointers used only in one context use RCPTRTYPE(), R3R0PTRTYPE(), R3PTRTYPE() or R0PTRTYPE().
+ */
+#if defined(IN_RC) && !defined(DOXYGEN_RUNNING)
+# define CTXTYPE(GCType, R3Type, R0Type)  GCType
+#elif defined(IN_RING3) || defined(DOXYGEN_RUNNING)
+# define CTXTYPE(GCType, R3Type, R0Type)  R3Type
+#else
+# define CTXTYPE(GCType, R3Type, R0Type)  R0Type
+#endif
+
+/** @def CTX_EXPR
+ * Expression selector for avoiding \#ifdef's.
+ *
+ * @param   a_R3Expr    The R3 expression.
+ * @param   a_R0Expr    The R0 expression.
+ * @param   a_RCExpr    The RC expression.
+ */
+#if defined(IN_RC) && !defined(DOXYGEN_RUNNING)
+# define CTX_EXPR(a_R3Expr, a_R0Expr, a_RCExpr)  a_RCExpr
+#elif defined(IN_RING0) && !defined(DOXYGEN_RUNNING)
+# define CTX_EXPR(a_R3Expr, a_R0Expr, a_RCExpr)  a_R0Expr
+#else
+# define CTX_EXPR(a_R3Expr, a_R0Expr, a_RCExpr)  a_R3Expr
+#endif
+
+/** @def RCPTRTYPE
+ * Declare a pointer which is used in the raw mode context but appears in structure(s) used by
+ * both HC and RC. The main purpose is to make sure structures have the same
+ * size when built for different architectures.
+ *
+ * @param   RCType  The RC type.
+ */
+#define RCPTRTYPE(RCType)       CTXTYPE(RCType, RTRCPTR, RTRCPTR)
+
+/** @def RGPTRTYPE
+ * This will become RCPTRTYPE once we've convered all uses of RCPTRTYPE to this.
+ *
+ * @param   RCType  The RC type.
+ */
+#define RGPTRTYPE(RCType)       CTXTYPE(RCType, RTGCPTR, RTGCPTR)
+
+/** @def R3R0PTRTYPE
+ * Declare a pointer which is used in HC, is explicitly valid in ring 3 and 0,
+ * but appears in structure(s) used by both HC and GC. The main purpose is to
+ * make sure structures have the same size when built for different architectures.
+ *
+ * @param   R3R0Type  The R3R0 type.
+ * @remarks This used to be called HCPTRTYPE.
+ */
+#define R3R0PTRTYPE(R3R0Type)   CTXTYPE(RTHCPTR, R3R0Type, R3R0Type)
+
+/** @def R3PTRTYPE
+ * Declare a pointer which is used in R3 but appears in structure(s) used by
+ * both HC and GC. The main purpose is to make sure structures have the same
+ * size when built for different architectures.
+ *
+ * @param   R3Type  The R3 type.
+ */
+#define R3PTRTYPE(R3Type)       CTXTYPE(RTHCUINTPTR, R3Type, RTHCUINTPTR)
+
+/** @def R0PTRTYPE
+ * Declare a pointer which is used in R0 but appears in structure(s) used by
+ * both HC and GC. The main purpose is to make sure structures have the same
+ * size when built for different architectures.
+ *
+ * @param   R0Type  The R0 type.
+ */
+#define R0PTRTYPE(R0Type)       CTXTYPE(RTHCUINTPTR, RTHCUINTPTR, R0Type)
+
+/** @def CTXSUFF
+ * Adds the suffix of the current context to the passed in
+ * identifier name. The suffix is HC or GC.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   var     Identifier name.
+ * @deprecated Use CTX_SUFF. Do NOT use this for new code.
+ */
+/** @def OTHERCTXSUFF
+ * Adds the suffix of the other context to the passed in
+ * identifier name. The suffix is HC or GC.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   var     Identifier name.
+ * @deprecated Use CTX_SUFF. Do NOT use this for new code.
+ */
+#if defined(IN_RC) && !defined(DOXYGEN_RUNNING)
+# define CTXSUFF(var)       var##GC
+# define OTHERCTXSUFF(var)  var##HC
+#else
+# define CTXSUFF(var)       var##HC
+# define OTHERCTXSUFF(var)  var##GC
+#endif
+
+/** @def CTXALLSUFF
+ * Adds the suffix of the current context to the passed in
+ * identifier name. The suffix is R3, R0 or GC.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   var     Identifier name.
+ * @deprecated Use CTX_SUFF. Do NOT use this for new code.
+ */
+#if defined(IN_RC) && !defined(DOXYGEN_RUNNING)
+# define CTXALLSUFF(var)    var##GC
+#elif defined(IN_RING0) && !defined(DOXYGEN_RUNNING)
+# define CTXALLSUFF(var)    var##R0
+#else
+# define CTXALLSUFF(var)    var##R3
+#endif
+
+/** @def CTX_SUFF
+ * Adds the suffix of the current context to the passed in
+ * identifier name. The suffix is R3, R0 or RC.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   var     Identifier name.
+ *
+ * @remark  This will replace CTXALLSUFF and CTXSUFF before long.
+ */
+#if defined(IN_RC) && !defined(DOXYGEN_RUNNING)
+# define CTX_SUFF(var)      var##RC
+#elif defined(IN_RING0) && !defined(DOXYGEN_RUNNING)
+# define CTX_SUFF(var)      var##R0
+#else
+# define CTX_SUFF(var)      var##R3
+#endif
+
+/** @def CTX_SUFF_Z
+ * Adds the suffix of the current context to the passed in
+ * identifier name, combining RC and R0 into RZ.
+ * The suffix thus is R3 or RZ.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   var     Identifier name.
+ *
+ * @remark  This will replace CTXALLSUFF and CTXSUFF before long.
+ */
+#if defined(IN_RING3) || defined(DOXYGEN_RUNNING)
+# define CTX_SUFF_Z(var)    var##R3
+#else
+# define CTX_SUFF_Z(var)    var##RZ
+#endif
+
+
+/** @def CTXMID
+ * Adds the current context as a middle name of an identifier name
+ * The middle name is HC or GC.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   first   First name.
+ * @param   last    Surname.
+ */
+/** @def OTHERCTXMID
+ * Adds the other context as a middle name of an identifier name
+ * The middle name is HC or GC.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   first   First name.
+ * @param   last    Surname.
+ * @deprecated use CTX_MID or CTX_MID_Z
+ */
+#if defined(IN_RC) && !defined(DOXYGEN_RUNNING)
+# define CTXMID(first, last)        first##GC##last
+# define OTHERCTXMID(first, last)   first##HC##last
+#else
+# define CTXMID(first, last)        first##HC##last
+# define OTHERCTXMID(first, last)   first##GC##last
+#endif
+
+/** @def CTXALLMID
+ * Adds the current context as a middle name of an identifier name.
+ * The middle name is R3, R0 or GC.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   first   First name.
+ * @param   last    Surname.
+ * @deprecated use CTX_MID or CTX_MID_Z
+ */
+#if defined(IN_RC) && !defined(DOXYGEN_RUNNING)
+# define CTXALLMID(first, last)     first##GC##last
+#elif defined(IN_RING0) && !defined(DOXYGEN_RUNNING)
+# define CTXALLMID(first, last)     first##R0##last
+#else
+# define CTXALLMID(first, last)     first##R3##last
+#endif
+
+/** @def CTX_MID
+ * Adds the current context as a middle name of an identifier name.
+ * The middle name is R3, R0 or RC.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   first   First name.
+ * @param   last    Surname.
+ */
+#if defined(IN_RC) && !defined(DOXYGEN_RUNNING)
+# define CTX_MID(first, last)       first##RC##last
+#elif defined(IN_RING0) && !defined(DOXYGEN_RUNNING)
+# define CTX_MID(first, last)       first##R0##last
+#else
+# define CTX_MID(first, last)       first##R3##last
+#endif
+
+/** @def CTX_MID_Z
+ * Adds the current context as a middle name of an identifier name, combining RC
+ * and R0 into RZ.
+ * The middle name thus is either R3 or RZ.
+ *
+ * This is macro should only be used in shared code to avoid a forest of ifdefs.
+ * @param   first   First name.
+ * @param   last    Surname.
+ */
+#ifdef IN_RING3
+# define CTX_MID_Z(first, last)     first##R3##last
+#else
+# define CTX_MID_Z(first, last)     first##RZ##last
+#endif
+
+
+/** @def R3STRING
+ * A macro which in GC and R0 will return a dummy string while in R3 it will return
+ * the parameter.
+ *
+ * This is typically used to wrap description strings in structures shared
+ * between R3, R0 and/or GC. The intention is to avoid the \#ifdef IN_RING3 mess.
+ *
+ * @param   pR3String   The R3 string. Only referenced in R3.
+ * @see R0STRING and GCSTRING
+ */
+#ifdef IN_RING3
+# define R3STRING(pR3String)    (pR3String)
+#else
+# define R3STRING(pR3String)    ("<R3_STRING>")
+#endif
+
+/** @def R0STRING
+ * A macro which in GC and R3 will return a dummy string while in R0 it will return
+ * the parameter.
+ *
+ * This is typically used to wrap description strings in structures shared
+ * between R3, R0 and/or GC. The intention is to avoid the \#ifdef IN_RING0 mess.
+ *
+ * @param   pR0String   The R0 string. Only referenced in R0.
+ * @see R3STRING and GCSTRING
+ */
+#ifdef IN_RING0
+# define R0STRING(pR0String)    (pR0String)
+#else
+# define R0STRING(pR0String)    ("<R0_STRING>")
+#endif
+
+/** @def RCSTRING
+ * A macro which in R3 and R0 will return a dummy string while in RC it will return
+ * the parameter.
+ *
+ * This is typically used to wrap description strings in structures shared
+ * between R3, R0 and/or RC. The intention is to avoid the \#ifdef IN_RC mess.
+ *
+ * @param   pRCString   The RC string. Only referenced in RC.
+ * @see R3STRING, R0STRING
+ */
+#ifdef IN_RC
+# define RCSTRING(pRCString)    (pRCString)
+#else
+# define RCSTRING(pRCString)    ("<RC_STRING>")
+#endif
+
+
+/** @def RT_NOTHING
+ * A macro that expands to nothing.
+ * This is primarily intended as a dummy argument for macros to avoid the
+ * undefined behavior passing empty arguments to an macro (ISO C90 and C++98,
+ * gcc v4.4 warns about it).
+ */
+#define RT_NOTHING
+
+/** @def RT_GCC_EXTENSION
+ * Macro for shutting up GCC warnings about using language extensions. */
+#ifdef __GNUC__
+# define RT_GCC_EXTENSION       __extension__
+#else
+# define RT_GCC_EXTENSION
+#endif
+
+/** @def RT_GCC_NO_WARN_DEPRECATED_BEGIN
+ * Used to start a block of code where GCC should not warn about deprecated
+ * declarations. */
+#if RT_GNUC_PREREQ(4, 6)
+# define RT_GCC_NO_WARN_DEPRECATED_BEGIN \
+   _Pragma("GCC diagnostic push") \
+   _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
+/** @def RT_GCC_NO_WARN_DEPRECATED_END
+ * Used to end a block of code where GCC should not warn about deprecated
+ * declarations. */
+# define RT_GCC_NO_WARN_DEPRECATED_END \
+   _Pragma("GCC diagnostic pop")
+#else
+# define RT_GCC_NO_WARN_DEPRECATED_BEGIN
+# define RT_GCC_NO_WARN_DEPRECATED_END
+#endif
+
+/** @def RT_GCC_NO_WARN_CONVERSION_BEGIN
+ * Used to start a block of code where GCC should not warn about implicit
+ * conversions that may alter a value. */
+#if RT_GNUC_PREREQ(4, 6)
+# define RT_GCC_NO_WARN_CONVERSION_BEGIN \
+   _Pragma("GCC diagnostic push") \
+   _Pragma("GCC diagnostic ignored \"-Wconversion\"")
+/** @def RT_GCC_NO_WARN_CONVERSION_END
+ * Used to end a block of code where GCC should not warn about implicit
+ * conversions that may alter a value. */
+# define RT_GCC_NO_WARN_CONVERSION_END \
+   _Pragma("GCC diagnostic pop")
+#else
+# define RT_GCC_NO_WARN_CONVERSION_BEGIN
+# define RT_GCC_NO_WARN_CONVERSION_END
+#endif
+
+/** @def RT_COMPILER_GROKS_64BIT_BITFIELDS
+ * Macro that is defined if the compiler understands 64-bit bitfields. */
+#if !defined(RT_OS_OS2) || (!defined(__IBMC__) && !defined(__IBMCPP__))
+# if !defined(__WATCOMC__) /* watcom compiler doesn't grok it either. */
+#  define RT_COMPILER_GROKS_64BIT_BITFIELDS
+# endif
+#endif
+
+/** @def RT_COMPILER_WITH_80BIT_LONG_DOUBLE
+ * Macro that is defined if the compiler implements long double as the
+ * IEEE extended precision floating. */
+#if (defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)) && !defined(RT_OS_WINDOWS)
+# define RT_COMPILER_WITH_80BIT_LONG_DOUBLE
+#endif
+
+
+/** @def RT_EXCEPTIONS_ENABLED
+ * Defined when C++ exceptions are enabled.
+ */
+#if !defined(RT_EXCEPTIONS_ENABLED) \
+ &&  defined(__cplusplus) \
+ && (   (defined(_MSC_VER) && defined(_CPPUNWIND)) \
+     || (defined(__GNUC__) && defined(__EXCEPTIONS)))
+# define RT_EXCEPTIONS_ENABLED
+#endif
+
+/** @def RT_NO_THROW_PROTO
+ * How to express that a function doesn't throw C++ exceptions
+ * and the compiler can thus save itself the bother of trying
+ * to catch any of them. Put this between the closing parenthesis
+ * and the semicolon in function prototypes (and implementation if C++).
+ *
+ * @remarks May not work on C++ methods, mainly intented for C-style APIs.
+ *
+ * @remarks The use of the nothrow attribute with GCC is because old compilers
+ *          (4.1.1, 32-bit) leaking the nothrow into global space or something
+ *          when used with RTDECL or similar.  Using this forces use to have two
+ *          macros, as the nothrow attribute is not for the function definition.
+ */
+#ifdef RT_EXCEPTIONS_ENABLED
+# ifdef __GNUC__
+#  if RT_GNUC_PREREQ(3, 3)
+#   define RT_NO_THROW_PROTO    __attribute__((__nothrow__))
+#  else
+#   define RT_NO_THROW_PROTO
+#  endif
+# else
+#  define RT_NO_THROW_PROTO     throw()
+# endif
+#else
+# define RT_NO_THROW_PROTO
+#endif
+
+/** @def RT_NO_THROW_DEF
+ * The counter part to RT_NO_THROW_PROTO that is added to the function
+ * definition.
+ */
+#if defined(RT_EXCEPTIONS_ENABLED) && !defined(__GNUC__)
+# define RT_NO_THROW_DEF        RT_NO_THROW_PROTO
+#else
+# define RT_NO_THROW_DEF
+#endif
+
+/** @def RT_THROW
+ * How to express that a method or function throws a type of exceptions. Some
+ * compilers does not want this kind of information and will warning about it.
+ *
+ * @param   type    The type exception.
+ *
+ * @remarks If the actual throwing is done from the header, enclose it by
+ *          \#ifdef RT_EXCEPTIONS_ENABLED ... \#else ... \#endif so the header
+ *          compiles cleanly without exceptions enabled.
+ *
+ *          Do NOT use this for the actual throwing of exceptions!
+ */
+#ifdef RT_EXCEPTIONS_ENABLED
+# if RT_MSC_PREREQ_EX(RT_MSC_VER_VC71, 0)
+#   define RT_THROW(type)
+# elif RT_GNUC_PREREQ(7, 0)
+#   define RT_THROW(type)
+# else
+#   define RT_THROW(type)       throw(type)
+# endif
+#else
+# define RT_THROW(type)
+#endif
+
+
+/** @def RT_OVERRIDE
+ * Wrapper for the C++11 override keyword.
+ *
+ * @remarks Recognized by g++ starting 4.7, however causes pedantic warnings
+ *          when used without officially enabling the C++11 features.
+ */
+#ifdef __cplusplus
+# if RT_MSC_PREREQ_EX(RT_MSC_VER_VS2012, 0)
+#  define RT_OVERRIDE           override
+# elif RT_GNUC_PREREQ(4, 7)
+#  if __cplusplus >= 201100
+#   define RT_OVERRIDE          override
+#  else
+#   define RT_OVERRIDE
+#  endif
+# else
+#  define RT_OVERRIDE
+# endif
+#else
+# define RT_OVERRIDE
+#endif
+
+/** @def RT_NOEXCEPT
+ * Wrapper for the C++11 noexcept keyword (only true form).
+ */
+/** @def RT_NOEXCEPT_EX
+ * Wrapper for the C++11 noexcept keyword with expression.
+ */
+#ifdef __cplusplus
+# if RT_MSC_PREREQ_EX(RT_MSC_VER_VS2015, 0)
+#  define RT_NOEXCEPT           noexcept
+#  define RT_NOEXCEPT_EX(expr)  noexcept(expr)
+# elif RT_GNUC_PREREQ(7, 0)
+#  if __cplusplus >= 201100
+#   define RT_NOEXCEPT          noexcept
+#   define RT_NOEXCEPT_EX(expr) noexcept(expr)
+#  else
+#   define RT_NOEXCEPT
+#   define RT_NOEXCEPT_EX(expr)
+#  endif
+# else
+#  define RT_NOEXCEPT
+#  define RT_NOEXCEPT_EX(expr)
+# endif
+#else
+# define RT_NOEXCEPT
+# define RT_NOEXCEPT_EX(expr)
+#endif
+
+
+/** @def RT_FALL_THROUGH
+ * Tell the compiler that we're falling through to the next case in a switch.
+ * @sa RT_FALL_THRU  */
+#if RT_GNUC_PREREQ(7, 0)
+# define RT_FALL_THROUGH()      __attribute__((__fallthrough__))
+#else
+# define RT_FALL_THROUGH()      (void)0
+#endif
+/** @def RT_FALL_THRU
+ * Tell the compiler that we're falling thru to the next case in a switch.
+ * @sa RT_FALL_THROUGH */
+#define RT_FALL_THRU()          RT_FALL_THROUGH()
+
+
+/** @def RT_IPRT_FORMAT_ATTR
+ * Identifies a function taking an IPRT format string.
+ * @param   a_iFmt  The index (1-based) of the format string argument.
+ * @param   a_iArgs The index (1-based) of the first format argument, use 0 for
+ *                  va_list.
+ */
+#if defined(__GNUC__) && defined(WITH_IPRT_FORMAT_ATTRIBUTE)
+# define RT_IPRT_FORMAT_ATTR(a_iFmt, a_iArgs)   __attribute__((__iprt_format__(a_iFmt, a_iArgs)))
+#else
+# define RT_IPRT_FORMAT_ATTR(a_iFmt, a_iArgs)
+#endif
+
+/** @def RT_IPRT_FORMAT_ATTR_MAYBE_NULL
+ * Identifies a function taking an IPRT format string, NULL is allowed.
+ * @param   a_iFmt  The index (1-based) of the format string argument.
+ * @param   a_iArgs The index (1-based) of the first format argument, use 0 for
+ *                  va_list.
+ */
+#if defined(__GNUC__) && defined(WITH_IPRT_FORMAT_ATTRIBUTE)
+# define RT_IPRT_FORMAT_ATTR_MAYBE_NULL(a_iFmt, a_iArgs)   __attribute__((__iprt_format_maybe_null__(a_iFmt, a_iArgs)))
+#else
+# define RT_IPRT_FORMAT_ATTR_MAYBE_NULL(a_iFmt, a_iArgs)
+#endif
+
+
+/** @def RT_GCC_SUPPORTS_VISIBILITY_HIDDEN
+ * Indicates that the "hidden" visibility attribute can be used (GCC) */
+#if defined(__GNUC__)
+# if __GNUC__ >= 4 && !defined(RT_OS_OS2) && !defined(RT_OS_WINDOWS)
+#  define RT_GCC_SUPPORTS_VISIBILITY_HIDDEN
+# endif
+#endif
+
+/** @def RT_COMPILER_SUPPORTS_VA_ARGS
+ * If the defined, the compiler supports the variadic macro feature (..., __VA_ARGS__). */
+#if defined(_MSC_VER)
+# if _MSC_VER >= 1600 /* Visual C++ v10.0 / 2010 */
+#  define RT_COMPILER_SUPPORTS_VA_ARGS
+# endif
+#elif defined(__GNUC__)
+# if __GNUC__ >= 3 /* not entirely sure when this was added */
+#  define RT_COMPILER_SUPPORTS_VA_ARGS
+# endif
+#elif defined(__WATCOMC__)
+# define RT_COMPILER_SUPPORTS_VA_ARGS
+#endif
+
+
+
+/** @def RTCALL
+ * The standard calling convention for the Runtime interfaces.
+ *
+ * @remarks The regparm(0) in the X86/GNUC variant deals with -mregparm=x use in
+ *          the linux kernel and potentially elsewhere (3rd party).
+ */
+#if defined(_MSC_VER) || defined(__WATCOMC__)
+# define RTCALL                 __cdecl
+#elif defined(RT_OS_OS2)
+# define RTCALL                 __cdecl
+#elif defined(__GNUC__) && defined(RT_ARCH_X86)
+# define RTCALL                 __attribute__((__cdecl__,__regparm__(0)))
+#else
+# define RTCALL
+#endif
+
+/** @def DECLEXPORT
+ * How to declare an exported function.
+ * @param   type    The return type of the function declaration.
+ */
+#if defined(_MSC_VER) || defined(RT_OS_OS2)
+# define DECLEXPORT(type)       __declspec(dllexport) type
+#elif defined(RT_USE_VISIBILITY_DEFAULT)
+# define DECLEXPORT(type)      __attribute__((visibility("default"))) type
+#else
+# define DECLEXPORT(type)      type
+#endif
+
+/** @def DECLIMPORT
+ * How to declare an imported function.
+ * @param   type    The return type of the function declaration.
+ */
+#if defined(_MSC_VER) || (defined(RT_OS_OS2) && !defined(__IBMC__) && !defined(__IBMCPP__))
+# define DECLIMPORT(type)       __declspec(dllimport) type
+#else
+# define DECLIMPORT(type)       type
+#endif
+
+/** @def DECLHIDDEN
+ * How to declare a non-exported function or variable.
+ * @param   type    The return type of the function or the data type of the variable.
+ */
+#if !defined(RT_GCC_SUPPORTS_VISIBILITY_HIDDEN) || defined(RT_NO_VISIBILITY_HIDDEN)
+# define DECLHIDDEN(type)       type
+#else
+# define DECLHIDDEN(type)       __attribute__((visibility("hidden"))) type
+#endif
+
+/** @def DECL_HIDDEN_CONST
+ * Workaround for g++ warnings when applying the hidden attribute to a const
+ * definition.  Use DECLHIDDEN for the declaration.
+ * @param   a_Type      The return type of the function or the data type of
+ *                      the variable.
+ */
+#if defined(__cplusplus) && defined(__GNUC__)
+# define DECL_HIDDEN_CONST(a_Type)   a_Type
+#else
+# define DECL_HIDDEN_CONST(a_Type)   DECLHIDDEN(a_Type)
+#endif
+
+/** @def DECL_INVALID
+ * How to declare a function not available for linking in the current context.
+ * The purpose is to create compile or like time errors when used.  This isn't
+ * possible on all platforms.
+ * @param   type    The return type of the function.
+ */
+#if defined(_MSC_VER)
+# define DECL_INVALID(type)     __declspec(dllimport) type __stdcall
+#elif defined(__GNUC__) && defined(__cplusplus)
+# define DECL_INVALID(type)     extern "C++" type
+#else
+# define DECL_INVALID(type)     type
+#endif
+
+/** @def DECLASM
+ * How to declare an internal assembly function.
+ * @param   type    The return type of the function declaration.
+ */
+#ifdef __cplusplus
+# define DECLASM(type)           extern "C" type RTCALL
+#else
+# define DECLASM(type)           type RTCALL
+#endif
+
+/** @def DECLASMTYPE
+ * How to declare an internal assembly function type.
+ * @param   type    The return type of the function.
+ */
+#define DECLASMTYPE(type)       type RTCALL
+
+/** @def RT_ASM_DECL_PRAGMA_WATCOM
+ * How to declare a assembly method prototype with watcom \#pragma aux definition.  */
+/** @def RT_ASM_DECL_PRAGMA_WATCOM_386
+ * Same as RT_ASM_DECL_PRAGMA_WATCOM, but there is no 16-bit version when
+ * 8086, 80186 or 80286 is selected as the target CPU. */
+#if defined(__WATCOMC__) && ARCH_BITS == 16 && defined(RT_ARCH_X86)
+# define RT_ASM_DECL_PRAGMA_WATCOM(type) type
+# if defined(__SW_0) || defined(__SW_1) || defined(__SW_2)
+#  define RT_ASM_DECL_PRAGMA_WATCOM_386(type)   DECLASM(type)
+# else
+#  define RT_ASM_DECL_PRAGMA_WATCOM_386(type)   type
+# endif
+#elif defined(__WATCOMC__) && ARCH_BITS == 32 && defined(RT_ARCH_X86)
+# define RT_ASM_DECL_PRAGMA_WATCOM(type)        type
+# define RT_ASM_DECL_PRAGMA_WATCOM_386(type)    type
+#else
+# define RT_ASM_DECL_PRAGMA_WATCOM(type)        DECLASM(type)
+# define RT_ASM_DECL_PRAGMA_WATCOM_386(type)    DECLASM(type)
+#endif
+
+/** @def DECL_NO_RETURN
+ * How to declare a function which does not return.
+ * @note This macro can be combined with other macros, for example
+ * @code
+ *   EMR3DECL(DECL_NO_RETURN(void)) foo(void);
+ * @endcode
+ */
+#ifdef _MSC_VER
+# define DECL_NO_RETURN(type)   __declspec(noreturn) type
+#elif defined(__GNUC__)
+# define DECL_NO_RETURN(type)   __attribute__((noreturn)) type
+#else
+# define DECL_NO_RETURN(type)   type
+#endif
+/** @deprecated Use DECL_NO_RETURN instead. */
+#define DECLNORETURN(type) DECL_NO_RETURN(type)
+
+/** @def DECL_RETURNS_TWICE
+ * How to declare a function which may return more than once.
+ * @note This macro can be combined with other macros, for example
+ * @code
+ *   EMR3DECL(DECL_RETURNS_TWICE(void)) MySetJmp(void);
+ * @endcode
+ */
+#if RT_GNUC_PREREQ(4, 1)
+# define DECL_RETURNS_TWICE(type)  __attribute__((returns_twice)) type
+# else
+# define DECL_RETURNS_TWICE(type)   type
+#endif
+
+/** @def DECLWEAK
+ * How to declare a variable which is not necessarily resolved at
+ * runtime.
+ * @note This macro can be combined with other macros, for example
+ * @code
+ *   EMR3DECL(DECLWEAK(int)) foo;
+ * @endcode
+ */
+#if defined(__GNUC__)
+# define DECLWEAK(type)         type __attribute__((weak))
+#else
+# define DECLWEAK(type)         type
+#endif
+
+/** @def DECLCALLBACK
+ * How to declare an call back function type.
+ * @param   type    The return type of the function declaration.
+ */
+#define DECLCALLBACK(type)      type RT_FAR_CODE RTCALL
+
+/** @def DECLCALLBACKPTR
+ * How to declare an call back function pointer.
+ * @param   type    The return type of the function declaration.
+ * @param   name    The name of the variable member.
+ */
+#if defined(__IBMC__) || defined(__IBMCPP__)
+# define DECLCALLBACKPTR(type, name)    type (* RTCALL name)
+#else
+# define DECLCALLBACKPTR(type, name)    type (RT_FAR_CODE RTCALL * name)
+#endif
+
+/** @def DECLCALLBACKMEMBER
+ * How to declare an call back function pointer member.
+ * @param   type    The return type of the function declaration.
+ * @param   name    The name of the struct/union/class member.
+ */
+#if defined(__IBMC__) || defined(__IBMCPP__)
+# define DECLCALLBACKMEMBER(type, name) type (* RTCALL name)
+#else
+# define DECLCALLBACKMEMBER(type, name) type (RT_FAR_CODE RTCALL * name)
+#endif
+
+/** @def DECLR3CALLBACKMEMBER
+ * How to declare an call back function pointer member - R3 Ptr.
+ * @param   type    The return type of the function declaration.
+ * @param   name    The name of the struct/union/class member.
+ * @param   args    The argument list enclosed in parentheses.
+ */
+#if defined(IN_RING3) || defined(DOXYGEN_RUNNING)
+# define DECLR3CALLBACKMEMBER(type, name, args)  DECLCALLBACKMEMBER(type, name) args
+#else
+# define DECLR3CALLBACKMEMBER(type, name, args)  RTR3PTR name
+#endif
+
+/** @def DECLRCCALLBACKMEMBER
+ * How to declare an call back function pointer member - RC Ptr.
+ * @param   type    The return type of the function declaration.
+ * @param   name    The name of the struct/union/class member.
+ * @param   args    The argument list enclosed in parentheses.
+ */
+#if defined(IN_RC) || defined(DOXYGEN_RUNNING)
+# define DECLRCCALLBACKMEMBER(type, name, args)  DECLCALLBACKMEMBER(type, name)  args
+#else
+# define DECLRCCALLBACKMEMBER(type, name, args)  RTRCPTR name
+#endif
+#if defined(IN_RC) || defined(DOXYGEN_RUNNING)
+# define DECLRGCALLBACKMEMBER(type, name, args)  DECLCALLBACKMEMBER(type, name)  args
+#else
+# define DECLRGCALLBACKMEMBER(type, name, args)  RTRGPTR name
+#endif
+
+/** @def DECLR0CALLBACKMEMBER
+ * How to declare an call back function pointer member - R0 Ptr.
+ * @param   type    The return type of the function declaration.
+ * @param   name    The name of the struct/union/class member.
+ * @param   args    The argument list enclosed in parentheses.
+ */
+#if defined(IN_RING0) || defined(DOXYGEN_RUNNING)
+# define DECLR0CALLBACKMEMBER(type, name, args)  DECLCALLBACKMEMBER(type, name) args
+#else
+# define DECLR0CALLBACKMEMBER(type, name, args)  RTR0PTR name
+#endif
+
+/** @def DECLINLINE
+ * How to declare a function as inline.
+ * @param   type    The return type of the function declaration.
+ * @remarks Don't use this macro on C++ methods.
+ */
+#if defined(__GNUC__) && !defined(DOXYGEN_RUNNING)
+# define DECLINLINE(type) static __inline__ type
+#elif defined(__cplusplus) || defined(DOXYGEN_RUNNING)
+# define DECLINLINE(type) static inline type
+#elif defined(_MSC_VER)
+# define DECLINLINE(type) static _inline type
+#elif defined(__IBMC__)
+# define DECLINLINE(type) _Inline type
+#else
+# define DECLINLINE(type) inline type
+#endif
+
+
+/** @def DECL_FORCE_INLINE
+ * How to declare a function as inline and try convince the compiler to always
+ * inline it regardless of optimization switches.
+ * @param   type    The return type of the function declaration.
+ * @remarks Use sparsely and with care. Don't use this macro on C++ methods.
+ */
+#ifdef __GNUC__
+# define DECL_FORCE_INLINE(type)    __attribute__((__always_inline__)) DECLINLINE(type)
+#elif defined(_MSC_VER)
+# define DECL_FORCE_INLINE(type)    __forceinline type
+#else
+# define DECL_FORCE_INLINE(type)    DECLINLINE(type)
+#endif
+
+
+/** @def DECL_NO_INLINE
+ * How to declare a function telling the compiler not to inline it.
+ * @param   scope   The function scope, static or RT_NOTHING.
+ * @param   type    The return type of the function declaration.
+ * @remarks Don't use this macro on C++ methods.
+ */
+#ifdef __GNUC__
+# define DECL_NO_INLINE(scope,type) __attribute__((__noinline__)) scope type
+#elif defined(_MSC_VER)
+# define DECL_NO_INLINE(scope,type) __declspec(noinline) scope type
+#else
+# define DECL_NO_INLINE(scope,type) scope type
+#endif
+
+
+/** @def IN_RT_STATIC
+ * Used to indicate whether we're linking against a static IPRT
+ * or not.
+ *
+ * The IPRT symbols will be declared as hidden (if supported).  Note that this
+ * define has no effect without also setting one of the IN_RT_R0, IN_RT_R3 or
+ * IN_RT_RC indicators.
+ */
+
+/** @def IN_RT_R0
+ * Used to indicate whether we're inside the same link module as the host
+ * context ring-0 Runtime Library.
+ */
+/** @def RTR0DECL(type)
+ * Runtime Library host context ring-0 export or import declaration.
+ * @param   type    The return type of the function declaration.
+ * @remarks This is only used inside IPRT.  Other APIs need to define their own
+ *          XXXX_DECL macros for dealing with import/export/static visibility.
+ */
+#ifdef IN_RT_R0
+# ifdef IN_RT_STATIC
+#  define RTR0DECL(type)    DECLHIDDEN(type) RTCALL
+# else
+#  define RTR0DECL(type)    DECLEXPORT(type) RTCALL
+# endif
+#else
+# define RTR0DECL(type)     DECLIMPORT(type) RTCALL
+#endif
+
+/** @def IN_RT_R3
+ * Used to indicate whether we're inside the same link module as the host
+ * context ring-3 Runtime Library.
+ */
+/** @def RTR3DECL(type)
+ * Runtime Library host context ring-3 export or import declaration.
+ * @param   type    The return type of the function declaration.
+ * @remarks This is only used inside IPRT.  Other APIs need to define their own
+ *          XXXX_DECL macros for dealing with import/export/static visibility.
+ */
+#ifdef IN_RT_R3
+# ifdef IN_RT_STATIC
+#  define RTR3DECL(type)    DECLHIDDEN(type) RTCALL
+# else
+#  define RTR3DECL(type)    DECLEXPORT(type) RTCALL
+# endif
+#else
+# define RTR3DECL(type)     DECLIMPORT(type) RTCALL
+#endif
+
+/** @def IN_RT_RC
+ * Used to indicate whether we're inside the same link module as the raw-mode
+ * context (RC) runtime library.
+ */
+/** @def RTRCDECL(type)
+ * Runtime Library raw-mode context export or import declaration.
+ * @param   type    The return type of the function declaration.
+ * @remarks This is only used inside IPRT.  Other APIs need to define their own
+ *          XXXX_DECL macros for dealing with import/export/static visibility.
+ */
+#ifdef IN_RT_RC
+# ifdef IN_RT_STATIC
+#  define RTRCDECL(type)    DECLHIDDEN(type) RTCALL
+# else
+#  define RTRCDECL(type)    DECLEXPORT(type) RTCALL
+# endif
+#else
+# define RTRCDECL(type)     DECLIMPORT(type) RTCALL
+#endif
+
+/** @def RTDECL(type)
+ * Runtime Library export or import declaration.
+ * Functions declared using this macro exists in all contexts.
+ * @param   type    The return type of the function declaration.
+ * @remarks This is only used inside IPRT.  Other APIs need to define their own
+ *          XXXX_DECL macros for dealing with import/export/static visibility.
+ */
+#if defined(IN_RT_R3) || defined(IN_RT_RC) || defined(IN_RT_R0)
+# ifdef IN_RT_STATIC
+#  define RTDECL(type)      DECLHIDDEN(type) RTCALL
+# else
+#  define RTDECL(type)      DECLEXPORT(type) RTCALL
+# endif
+#else
+# define RTDECL(type)       DECLIMPORT(type) RTCALL
+#endif
+
+/** @def RTDATADECL(type)
+ * Runtime Library export or import declaration.
+ * Data declared using this macro exists in all contexts.
+ * @param   type    The data type.
+ * @remarks This is only used inside IPRT.  Other APIs need to define their own
+ *          XXXX_DECL macros for dealing with import/export/static visibility.
+ */
+/** @def RT_DECL_DATA_CONST(type)
+ * Definition of a const variable. See DECL_HIDDEN_CONST.
+ * @param   type    The const data type.
+ * @remarks This is only used inside IPRT.  Other APIs need to define their own
+ *          XXXX_DECL macros for dealing with import/export/static visibility.
+ */
+#if defined(IN_RT_R3) || defined(IN_RT_RC) || defined(IN_RT_R0)
+# ifdef IN_RT_STATIC
+#  define RTDATADECL(type)          DECLHIDDEN(type)
+#  define RT_DECL_DATA_CONST(type)  DECL_HIDDEN_CONST(type)
+# else
+#  define RTDATADECL(type)          DECLEXPORT(type)
+#  if defined(__cplusplus) && defined(__GNUC__)
+#   define RT_DECL_DATA_CONST(type) type
+#  else
+#   define RT_DECL_DATA_CONST(type) DECLEXPORT(type)
+#  endif
+# endif
+#else
+# define RTDATADECL(type)           DECLIMPORT(type)
+# define RT_DECL_DATA_CONST(type)   DECLIMPORT(type)
+#endif
+
+/** @def RT_DECL_CLASS
+ * Declares an class living in the runtime.
+ * @remarks This is only used inside IPRT.  Other APIs need to define their own
+ *          XXXX_DECL macros for dealing with import/export/static visibility.
+ */
+#if defined(IN_RT_R3) || defined(IN_RT_RC) || defined(IN_RT_R0)
+# ifdef IN_RT_STATIC
+#  define RT_DECL_CLASS
+# else
+#  define RT_DECL_CLASS     DECLEXPORT_CLASS
+# endif
+#else
+# define RT_DECL_CLASS      DECLIMPORT_CLASS
+#endif
+
+
+/** @def RT_NOCRT
+ * Symbol name wrapper for the No-CRT bits.
+ *
+ * In order to coexist in the same process as other CRTs, we need to
+ * decorate the symbols such that they don't conflict the ones in the
+ * other CRTs. The result of such conflicts / duplicate symbols can
+ * confuse the dynamic loader on Unix like systems.
+ *
+ * Define RT_WITHOUT_NOCRT_WRAPPERS to drop the wrapping.
+ * Define RT_WITHOUT_NOCRT_WRAPPER_ALIASES to drop the aliases to the
+ * wrapped names.
+ */
+/** @def RT_NOCRT_STR
+ * Same as RT_NOCRT only it'll return a double quoted string of the result.
+ */
+#ifndef RT_WITHOUT_NOCRT_WRAPPERS
+# define RT_NOCRT(name) nocrt_ ## name
+# define RT_NOCRT_STR(name) "nocrt_" # name
+#else
+# define RT_NOCRT(name) name
+# define RT_NOCRT_STR(name) #name
+#endif
+
+
+/** @name Untrusted data classifications.
+ * @{ */
+/** @def RT_UNTRUSTED_USER
+ * For marking non-volatile (race free) data from user mode as untrusted.
+ * This is just for visible documentation. */
+#define RT_UNTRUSTED_USER
+/** @def RT_UNTRUSTED_VOLATILE_USER
+ * For marking volatile data shared with user mode as untrusted.
+ * This is more than just documentation as it specifies the 'volatile' keyword,
+ * because the guest could modify the data at any time. */
+#define RT_UNTRUSTED_VOLATILE_USER              volatile
+
+/** @def RT_UNTRUSTED_GUEST
+ * For marking non-volatile (race free) data from the guest as untrusted.
+ * This is just for visible documentation. */
+#define RT_UNTRUSTED_GUEST
+/** @def RT_UNTRUSTED_VOLATILE_GUEST
+ * For marking volatile data shared with the guest as untrusted.
+ * This is more than just documentation as it specifies the 'volatile' keyword,
+ * because the guest could modify the data at any time. */
+#define RT_UNTRUSTED_VOLATILE_GUEST             volatile
+
+/** @def RT_UNTRUSTED_HOST
+ * For marking non-volatile (race free) data from the host as untrusted.
+ * This is just for visible documentation. */
+#define RT_UNTRUSTED_HOST
+/** @def RT_UNTRUSTED_VOLATILE_HOST
+ * For marking volatile data shared with the host as untrusted.
+ * This is more than just documentation as it specifies the 'volatile' keyword,
+ * because the host could modify the data at any time. */
+#define RT_UNTRUSTED_VOLATILE_HOST              volatile
+
+/** @def RT_UNTRUSTED_HSTGST
+ * For marking non-volatile (race free) data from the host/gust as untrusted.
+ * This is just for visible documentation. */
+#define RT_UNTRUSTED_HSTGST
+/** @def RT_UNTRUSTED_VOLATILE_HSTGST
+ * For marking volatile data shared with the host/guest as untrusted.
+ * This is more than just documentation as it specifies the 'volatile' keyword,
+ * because the host could modify the data at any time. */
+#define RT_UNTRUSTED_VOLATILE_HSTGST            volatile
+/** @} */
+
+/** @name Fences for use when handling untrusted data.
+ * @{ */
+/** For use after copying untruated volatile data to a non-volatile location.
+ * This translates to a compiler memory barrier and will help ensure that the
+ * compiler uses the non-volatile copy of the data. */
+#define RT_UNTRUSTED_NONVOLATILE_COPY_FENCE()   ASMCompilerBarrier()
+/** For use after finished validating guest input.
+ * What this translates to is architecture dependent.  On intel it will
+ * translate to a CPU load+store fence as well as a compiler memory barrier. */
+#if defined(RT_ARCH_AMD64) || (defined(RT_ARCH_X86) && !defined(RT_WITH_OLD_CPU_SUPPORT))
+# define RT_UNTRUSTED_VALIDATED_FENCE()         do { ASMCompilerBarrier(); ASMReadFence(); } while (0)
+#elif defined(RT_ARCH_X86)
+# define RT_UNTRUSTED_VALIDATED_FENCE()         do { ASMCompilerBarrier(); ASMMemoryFence(); } while (0)
+#else
+# define RT_UNTRUSTED_VALIDATED_FENCE()         do { ASMCompilerBarrier(); } while (0)
+#endif
+/** @} */
+
+
+/** @def RT_LIKELY
+ * Give the compiler a hint that an expression is very likely to hold true.
+ *
+ * Some compilers support explicit branch prediction so that the CPU backend
+ * can hint the processor and also so that code blocks can be reordered such
+ * that the predicted path sees a more linear flow, thus improving cache
+ * behaviour, etc.
+ *
+ * IPRT provides the macros RT_LIKELY() and RT_UNLIKELY() as a way to utilize
+ * this compiler feature when present.
+ *
+ * A few notes about the usage:
+ *
+ *      - Generally, order your code use RT_LIKELY() instead of RT_UNLIKELY().
+ *
+ *      - Generally, use RT_UNLIKELY() with error condition checks (unless you
+ *        have some _strong_ reason to do otherwise, in which case document it),
+ *        and/or RT_LIKELY() with success condition checks, assuming you want
+ *        to optimize for the success path.
+ *
+ *      - Other than that, if you don't know the likelihood of a test succeeding
+ *        from empirical or other 'hard' evidence, don't make predictions unless
+ *        you happen to be a Dirk Gently character.
+ *
+ *      - These macros are meant to be used in places that get executed a lot. It
+ *        is wasteful to make predictions in code that is executed rarely (e.g.
+ *        at subsystem initialization time) as the basic block reordering that this
+ *        affects can often generate larger code.
+ *
+ *      - Note that RT_SUCCESS() and RT_FAILURE() already makes use of RT_LIKELY()
+ *        and RT_UNLIKELY().  Should you wish for prediction free status checks,
+ *        use the RT_SUCCESS_NP() and RT_FAILURE_NP() macros instead.
+ *
+ *
+ * @returns the boolean result of the expression.
+ * @param   expr        The expression that's very likely to be true.
+ * @see     RT_UNLIKELY
+ */
+/** @def RT_UNLIKELY
+ * Give the compiler a hint that an expression is highly unlikely to hold true.
+ *
+ * See the usage instructions give in the RT_LIKELY() docs.
+ *
+ * @returns the boolean result of the expression.
+ * @param   expr        The expression that's very unlikely to be true.
+ * @see     RT_LIKELY
+ *
+ * @deprecated Please use RT_LIKELY() instead wherever possible!  That gives us
+ *          a better chance of the windows compilers to generate favorable code
+ *          too.  The belief is that the compiler will by default assume the
+ *          if-case is more likely than the else-case.
+ */
+#if defined(__GNUC__)
+# if __GNUC__ >= 3 && !defined(FORTIFY_RUNNING)
+#  define RT_LIKELY(expr)       __builtin_expect(!!(expr), 1)
+#  define RT_UNLIKELY(expr)     __builtin_expect(!!(expr), 0)
+# else
+#  define RT_LIKELY(expr)       (expr)
+#  define RT_UNLIKELY(expr)     (expr)
+# endif
+#else
+# define RT_LIKELY(expr)        (expr)
+# define RT_UNLIKELY(expr)      (expr)
+#endif
+
+/** @def RT_EXPAND_2
+ * Helper for RT_EXPAND. */
+#define RT_EXPAND_2(a_Expr)     a_Expr
+/** @def RT_EXPAND
+ * Returns the expanded expression.
+ * @param   a_Expr              The expression to expand. */
+#define RT_EXPAND(a_Expr)       RT_EXPAND_2(a_Expr)
+
+/** @def RT_STR
+ * Returns the argument as a string constant.
+ * @param   str     Argument to stringify.  */
+#define RT_STR(str)             #str
+/** @def RT_XSTR
+ * Returns the expanded argument as a string.
+ * @param   str     Argument to expand and stringify. */
+#define RT_XSTR(str)            RT_STR(str)
+
+/** @def RT_LSTR_2
+ * Helper for RT_WSTR that gets the expanded @a str.
+ * @param   str     String litteral to prefix with 'L'.  */
+#define RT_LSTR_2(str)          L##str
+/** @def RT_LSTR
+ * Returns the expanded argument with a L string prefix.
+ *
+ * Intended for converting ASCII string \#defines into wide char string
+ * litterals on Windows.
+ *
+ * @param   str     String litteral to . */
+#define RT_LSTR(str)            RT_LSTR_2(str)
+
+/** @def RT_UNPACK_CALL
+ * Unpacks the an argument list inside an extra set of parenthesis and turns it
+ * into a call to @a a_Fn.
+ *
+ * @param   a_Fn        Function/macro to call.
+ * @param   a_Args      Parameter list in parenthesis.
+ */
+#define RT_UNPACK_CALL(a_Fn, a_Args) a_Fn a_Args
+
+#if defined(RT_COMPILER_SUPPORTS_VA_ARGS) || defined(DOXYGEN_RUNNING)
+
+/** @def RT_UNPACK_ARGS
+ * Returns the arguments without parenthesis.
+ *
+ * @param   ...         Parameter list in parenthesis.
+ * @remarks Requires RT_COMPILER_SUPPORTS_VA_ARGS.
+ */
+# define RT_UNPACK_ARGS(...)    __VA_ARGS__
+
+/** @def RT_COUNT_VA_ARGS_HLP
+ * Helper for RT_COUNT_VA_ARGS that picks out the argument count from
+ * RT_COUNT_VA_ARGS_REV_SEQ. */
+# define RT_COUNT_VA_ARGS_HLP( \
+    c69, c68, c67, c66, c65, c64, c63, c62, c61, c60, \
+    c59, c58, c57, c56, c55, c54, c53, c52, c51, c50, \
+    c49, c48, c47, c46, c45, c44, c43, c42, c41, c40, \
+    c39, c38, c37, c36, c35, c34, c33, c32, c31, c30, \
+    c29, c28, c27, c26, c25, c24, c23, c22, c21, c20, \
+    c19, c18, c17, c16, c15, c14, c13, c12, c11, c10, \
+     c9,  c8,  c7,  c6,  c5,  c4,  c3,  c2,  c1, cArgs, ...) cArgs
+/** Argument count sequence. */
+# define RT_COUNT_VA_ARGS_REV_SEQ \
+     69,  68,  67,  66,  65,  64,  63,  62,  61,  60, \
+     59,  58,  57,  56,  55,  54,  53,  52,  51,  50, \
+     49,  48,  47,  46,  45,  44,  43,  42,  41,  40, \
+     39,  38,  37,  36,  35,  34,  33,  32,  31,  30, \
+     29,  28,  27,  26,  25,  24,  23,  22,  21,  20, \
+     19,  18,  17,  16,  15,  14,  13,  12,  11,  10, \
+      9,   8,   7,   6,   5,   4,   3,   2,   1,   0
+/** This is for zero arguments. At least Visual C++ requires it. */
+# define RT_COUNT_VA_ARGS_PREFIX_RT_NOTHING       RT_COUNT_VA_ARGS_REV_SEQ
+/**
+ * Counts the number of arguments given to the variadic macro.
+ *
+ * Max is 69.
+ *
+ * @returns Number of arguments in the ellipsis
+ * @param   ...     Arguments to count.
+ * @remarks Requires RT_COMPILER_SUPPORTS_VA_ARGS.
+ */
+# define RT_COUNT_VA_ARGS(...) \
+      RT_UNPACK_CALL(RT_COUNT_VA_ARGS_HLP, (RT_COUNT_VA_ARGS_PREFIX_ ## __VA_ARGS__ ## RT_NOTHING, \
+                                            RT_COUNT_VA_ARGS_REV_SEQ))
+
+#endif /* RT_COMPILER_SUPPORTS_VA_ARGS */
+
+
+/** @def RT_CONCAT
+ * Concatenate the expanded arguments without any extra spaces in between.
+ *
+ * @param   a       The first part.
+ * @param   b       The second part.
+ */
+#define RT_CONCAT(a,b)              RT_CONCAT_HLP(a,b)
+/** RT_CONCAT helper, don't use.  */
+#define RT_CONCAT_HLP(a,b)          a##b
+
+/** @def RT_CONCAT3
+ * Concatenate the expanded arguments without any extra spaces in between.
+ *
+ * @param   a       The 1st part.
+ * @param   b       The 2nd part.
+ * @param   c       The 3rd part.
+ */
+#define RT_CONCAT3(a,b,c)           RT_CONCAT3_HLP(a,b,c)
+/** RT_CONCAT3 helper, don't use.  */
+#define RT_CONCAT3_HLP(a,b,c)       a##b##c
+
+/** @def RT_CONCAT4
+ * Concatenate the expanded arguments without any extra spaces in between.
+ *
+ * @param   a       The 1st part.
+ * @param   b       The 2nd part.
+ * @param   c       The 3rd part.
+ * @param   d       The 4th part.
+ */
+#define RT_CONCAT4(a,b,c,d)         RT_CONCAT4_HLP(a,b,c,d)
+/** RT_CONCAT4 helper, don't use.  */
+#define RT_CONCAT4_HLP(a,b,c,d)     a##b##c##d
+
+/** @def RT_CONCAT5
+ * Concatenate the expanded arguments without any extra spaces in between.
+ *
+ * @param   a       The 1st part.
+ * @param   b       The 2nd part.
+ * @param   c       The 3rd part.
+ * @param   d       The 4th part.
+ * @param   e       The 5th part.
+ */
+#define RT_CONCAT5(a,b,c,d,e)         RT_CONCAT5_HLP(a,b,c,d,e)
+/** RT_CONCAT5 helper, don't use.  */
+#define RT_CONCAT5_HLP(a,b,c,d,e)     a##b##c##d##e
+
+/** @def RT_CONCAT6
+ * Concatenate the expanded arguments without any extra spaces in between.
+ *
+ * @param   a       The 1st part.
+ * @param   b       The 2nd part.
+ * @param   c       The 3rd part.
+ * @param   d       The 4th part.
+ * @param   e       The 5th part.
+ * @param   f       The 6th part.
+ */
+#define RT_CONCAT6(a,b,c,d,e,f)       RT_CONCAT6_HLP(a,b,c,d,e,f)
+/** RT_CONCAT6 helper, don't use.  */
+#define RT_CONCAT6_HLP(a,b,c,d,e,f)   a##b##c##d##e##f
+
+/** @def RT_CONCAT7
+ * Concatenate the expanded arguments without any extra spaces in between.
+ *
+ * @param   a       The 1st part.
+ * @param   b       The 2nd part.
+ * @param   c       The 3rd part.
+ * @param   d       The 4th part.
+ * @param   e       The 5th part.
+ * @param   f       The 6th part.
+ * @param   g       The 7th part.
+ */
+#define RT_CONCAT7(a,b,c,d,e,f,g)       RT_CONCAT7_HLP(a,b,c,d,e,f,g)
+/** RT_CONCAT7 helper, don't use.  */
+#define RT_CONCAT7_HLP(a,b,c,d,e,f,g)   a##b##c##d##e##f##g
+
+/** @def RT_CONCAT8
+ * Concatenate the expanded arguments without any extra spaces in between.
+ *
+ * @param   a       The 1st part.
+ * @param   b       The 2nd part.
+ * @param   c       The 3rd part.
+ * @param   d       The 4th part.
+ * @param   e       The 5th part.
+ * @param   f       The 6th part.
+ * @param   g       The 7th part.
+ * @param   h       The 8th part.
+ */
+#define RT_CONCAT8(a,b,c,d,e,f,g,h)     RT_CONCAT8_HLP(a,b,c,d,e,f,g,h)
+/** RT_CONCAT8 helper, don't use.  */
+#define RT_CONCAT8_HLP(a,b,c,d,e,f,g,h) a##b##c##d##e##f##g##h
+
+/** @def RT_CONCAT9
+ * Concatenate the expanded arguments without any extra spaces in between.
+ *
+ * @param   a       The 1st part.
+ * @param   b       The 2nd part.
+ * @param   c       The 3rd part.
+ * @param   d       The 4th part.
+ * @param   e       The 5th part.
+ * @param   f       The 6th part.
+ * @param   g       The 7th part.
+ * @param   h       The 8th part.
+ * @param   i       The 9th part.
+ */
+#define RT_CONCAT9(a,b,c,d,e,f,g,h,i)   RT_CONCAT9_HLP(a,b,c,d,e,f,g,h,i)
+/** RT_CONCAT9 helper, don't use.  */
+#define RT_CONCAT9_HLP(a,b,c,d,e,f,g,h,i) a##b##c##d##e##f##g##h##i
+
+/**
+ * String constant tuple - string constant, strlen(string constant).
+ *
+ * @param   a_szConst   String constant.
+ * @sa      RTSTRTUPLE
+ */
+#define RT_STR_TUPLE(a_szConst)  a_szConst, (sizeof(a_szConst) - 1)
+
+
+/**
+ * Macro for using in switch statements that turns constants into strings.
+ *
+ * @param   a_Const     The constant (not string).
+ */
+#define RT_CASE_RET_STR(a_Const)     case a_Const: return #a_Const
+
+
+/** @def RT_BIT
+ * Convert a bit number into an integer bitmask (unsigned).
+ * @param   bit     The bit number.
+ */
+#define RT_BIT(bit)                             ( 1U << (bit) )
+
+/** @def RT_BIT_32
+ * Convert a bit number into a 32-bit bitmask (unsigned).
+ * @param   bit     The bit number.
+ */
+#define RT_BIT_32(bit)                          ( UINT32_C(1) << (bit) )
+
+/** @def RT_BIT_64
+ * Convert a bit number into a 64-bit bitmask (unsigned).
+ * @param   bit     The bit number.
+ */
+#define RT_BIT_64(bit)                          ( UINT64_C(1) << (bit) )
+
+
+/** @def RT_BF_GET
+ * Gets the value of a bit field in an integer value.
+ *
+ * This requires a couple of macros to be defined for the field:
+ *      - \<a_FieldNm\>_SHIFT: The shift count to get to the field.
+ *      - \<a_FieldNm\>_MASK:  The field mask.
+ *
+ * @returns The bit field value.
+ * @param   a_uValue        The integer value containing the field.
+ * @param   a_FieldNm       The field name prefix for getting at the _SHIFT and
+ *                          _MASK macros.
+ * @sa      #RT_BF_CLEAR, #RT_BF_SET, #RT_BF_MAKE, #RT_BF_ZMASK
+ */
+#define RT_BF_GET(a_uValue, a_FieldNm)          ( ((a_uValue) >> RT_CONCAT(a_FieldNm,_SHIFT)) & RT_BF_ZMASK(a_FieldNm) )
+
+/** @def RT_BF_SET
+ * Sets the given bit field in the integer value.
+ *
+ * This requires a couple of macros to be defined for the field:
+ *      - \<a_FieldNm\>_SHIFT: The shift count to get to the field.
+ *      - \<a_FieldNm\>_MASK:  The field mask.  Must have the same type as the
+ *        integer value!!
+ *
+ * @returns Integer value with bit field set to @a a_uFieldValue.
+ * @param   a_uValue        The integer value containing the field.
+ * @param   a_FieldNm       The field name prefix for getting at the _SHIFT and
+ *                          _MASK macros.
+ * @param   a_uFieldValue   The new field value.
+ * @sa      #RT_BF_GET, #RT_BF_CLEAR, #RT_BF_MAKE, #RT_BF_ZMASK
+ */
+#define RT_BF_SET(a_uValue, a_FieldNm, a_uFieldValue) ( RT_BF_CLEAR(a_uValue, a_FieldNm) | RT_BF_MAKE(a_FieldNm, a_uFieldValue) )
+
+/** @def RT_BF_CLEAR
+ * Clears the given bit field in the integer value.
+ *
+ * This requires a couple of macros to be defined for the field:
+ *      - \<a_FieldNm\>_SHIFT: The shift count to get to the field.
+ *      - \<a_FieldNm\>_MASK:  The field mask.  Must have the same type as the
+ *        integer value!!
+ *
+ * @returns Integer value with bit field set to zero.
+ * @param   a_uValue        The integer value containing the field.
+ * @param   a_FieldNm       The field name prefix for getting at the _SHIFT and
+ *                          _MASK macros.
+ * @sa      #RT_BF_GET, #RT_BF_SET, #RT_BF_MAKE, #RT_BF_ZMASK
+ */
+#define RT_BF_CLEAR(a_uValue, a_FieldNm)        ( (a_uValue) & ~RT_CONCAT(a_FieldNm,_MASK) )
+
+/** @def RT_BF_MAKE
+ * Shifts and masks a bit field value into position in the integer value.
+ *
+ * This requires a couple of macros to be defined for the field:
+ *      - \<a_FieldNm\>_SHIFT: The shift count to get to the field.
+ *      - \<a_FieldNm\>_MASK:  The field mask.
+ *
+ * @param   a_FieldNm       The field name prefix for getting at the _SHIFT and
+ *                          _MASK macros.
+ * @param   a_uFieldValue   The field value that should be masked and shifted
+ *                          into position.
+ * @sa      #RT_BF_GET, #RT_BF_SET, #RT_BF_CLEAR, #RT_BF_ZMASK
+ */
+#define RT_BF_MAKE(a_FieldNm, a_uFieldValue)    ( ((a_uFieldValue) & RT_BF_ZMASK(a_FieldNm) ) << RT_CONCAT(a_FieldNm,_SHIFT) )
+
+/** @def RT_BF_ZMASK
+ * Helper for getting the field mask shifted to bit position zero.
+ *
+ * @param   a_FieldNm       The field name prefix for getting at the _SHIFT and
+ *                          _MASK macros.
+ * @sa      #RT_BF_GET, #RT_BF_SET, #RT_BF_CLEAR, #RT_BF_MAKE
+ */
+#define RT_BF_ZMASK(a_FieldNm)                  ( RT_CONCAT(a_FieldNm,_MASK) >> RT_CONCAT(a_FieldNm,_SHIFT) )
+
+/** Bit field compile time check helper
+ * @internal */
+#define RT_BF_CHECK_DO_XOR_MASK(a_uLeft, a_RightPrefix, a_FieldNm)  ((a_uLeft) ^ RT_CONCAT3(a_RightPrefix, a_FieldNm, _MASK))
+/** Bit field compile time check helper
+ * @internal */
+#define RT_BF_CHECK_DO_OR_MASK(a_uLeft, a_RightPrefix, a_FieldNm)   ((a_uLeft) | RT_CONCAT3(a_RightPrefix, a_FieldNm, _MASK))
+/** Bit field compile time check helper
+ * @internal */
+#define RT_BF_CHECK_DO_1ST_MASK_BIT(a_uLeft, a_RightPrefix, a_FieldNm) \
+    ((a_uLeft) && ( (RT_CONCAT3(a_RightPrefix, a_FieldNm, _MASK) >> RT_CONCAT3(a_RightPrefix, a_FieldNm, _SHIFT)) & 1U ) )
+/** Used to check that a bit field mask does not start too early.
+ * @internal */
+#define RT_BF_CHECK_DO_MASK_START(a_uLeft, a_RightPrefix, a_FieldNm) \
+    (   (a_uLeft) \
+     && (   RT_CONCAT3(a_RightPrefix, a_FieldNm, _SHIFT) == 0 \
+         || (  (  (   ((RT_CONCAT3(a_RightPrefix, a_FieldNm, _MASK) >> RT_CONCAT3(a_RightPrefix, a_FieldNm, _SHIFT)) & 1U) \
+                   << RT_CONCAT3(a_RightPrefix, a_FieldNm, _SHIFT)) /* => single bit mask, correct type */ \
+                - 1U) /* => mask of all bits below the field */ \
+             & RT_CONCAT3(a_RightPrefix, a_FieldNm, _MASK)) == 0 ) )
+/** @name Bit field compile time check recursion workers.
+ * @internal
+ * @{  */
+#define RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix, f1) \
+    a_DoThis(a_uLeft, a_RightPrefix, f1)
+#define RT_BF_CHECK_DO_2(a_DoThis, a_uLeft, a_RightPrefix,                                        f1, f2) \
+    RT_BF_CHECK_DO_1(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2)
+#define RT_BF_CHECK_DO_3(a_DoThis, a_uLeft, a_RightPrefix,                                        f1, f2, f3) \
+    RT_BF_CHECK_DO_2(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3)
+#define RT_BF_CHECK_DO_4(a_DoThis, a_uLeft, a_RightPrefix,                                        f1, f2, f3, f4) \
+    RT_BF_CHECK_DO_3(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4)
+#define RT_BF_CHECK_DO_5(a_DoThis, a_uLeft, a_RightPrefix,                                        f1, f2, f3, f4, f5) \
+    RT_BF_CHECK_DO_4(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5)
+#define RT_BF_CHECK_DO_6(a_DoThis, a_uLeft, a_RightPrefix,                                        f1, f2, f3, f4, f5, f6) \
+    RT_BF_CHECK_DO_5(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6)
+#define RT_BF_CHECK_DO_7(a_DoThis, a_uLeft, a_RightPrefix,                                        f1, f2, f3, f4, f5, f6, f7) \
+    RT_BF_CHECK_DO_6(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7)
+#define RT_BF_CHECK_DO_8(a_DoThis, a_uLeft, a_RightPrefix,                                        f1, f2, f3, f4, f5, f6, f7, f8) \
+    RT_BF_CHECK_DO_7(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8)
+#define RT_BF_CHECK_DO_9(a_DoThis, a_uLeft, a_RightPrefix,                                        f1, f2, f3, f4, f5, f6, f7, f8, f9) \
+    RT_BF_CHECK_DO_8(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9)
+#define RT_BF_CHECK_DO_10(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10) \
+    RT_BF_CHECK_DO_9(a_DoThis,  RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10)
+#define RT_BF_CHECK_DO_11(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11) \
+    RT_BF_CHECK_DO_10(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11)
+#define RT_BF_CHECK_DO_12(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12) \
+    RT_BF_CHECK_DO_11(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12)
+#define RT_BF_CHECK_DO_13(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13) \
+    RT_BF_CHECK_DO_12(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13)
+#define RT_BF_CHECK_DO_14(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14) \
+    RT_BF_CHECK_DO_13(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14)
+#define RT_BF_CHECK_DO_15(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15) \
+    RT_BF_CHECK_DO_14(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15)
+#define RT_BF_CHECK_DO_16(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16) \
+    RT_BF_CHECK_DO_15(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16)
+#define RT_BF_CHECK_DO_17(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17) \
+    RT_BF_CHECK_DO_16(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17)
+#define RT_BF_CHECK_DO_18(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18) \
+    RT_BF_CHECK_DO_17(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18)
+#define RT_BF_CHECK_DO_19(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19) \
+    RT_BF_CHECK_DO_18(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19)
+#define RT_BF_CHECK_DO_20(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20) \
+    RT_BF_CHECK_DO_19(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20)
+#define RT_BF_CHECK_DO_21(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21) \
+    RT_BF_CHECK_DO_20(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21)
+#define RT_BF_CHECK_DO_22(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22) \
+    RT_BF_CHECK_DO_21(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22)
+#define RT_BF_CHECK_DO_23(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23) \
+    RT_BF_CHECK_DO_22(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23)
+#define RT_BF_CHECK_DO_24(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24) \
+    RT_BF_CHECK_DO_23(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24)
+#define RT_BF_CHECK_DO_25(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25) \
+    RT_BF_CHECK_DO_24(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25)
+#define RT_BF_CHECK_DO_26(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26) \
+    RT_BF_CHECK_DO_25(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26)
+#define RT_BF_CHECK_DO_27(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27) \
+    RT_BF_CHECK_DO_26(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27)
+#define RT_BF_CHECK_DO_28(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28) \
+    RT_BF_CHECK_DO_27(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28)
+#define RT_BF_CHECK_DO_29(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29) \
+    RT_BF_CHECK_DO_28(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29)
+#define RT_BF_CHECK_DO_30(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30) \
+    RT_BF_CHECK_DO_29(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30)
+#define RT_BF_CHECK_DO_31(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31) \
+    RT_BF_CHECK_DO_30(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31)
+#define RT_BF_CHECK_DO_32(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32) \
+    RT_BF_CHECK_DO_31(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32)
+#define RT_BF_CHECK_DO_33(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33) \
+    RT_BF_CHECK_DO_32(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33)
+#define RT_BF_CHECK_DO_34(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34) \
+    RT_BF_CHECK_DO_33(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34)
+#define RT_BF_CHECK_DO_35(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35) \
+    RT_BF_CHECK_DO_34(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35)
+#define RT_BF_CHECK_DO_36(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36) \
+    RT_BF_CHECK_DO_35(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36)
+#define RT_BF_CHECK_DO_37(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37) \
+    RT_BF_CHECK_DO_36(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37)
+#define RT_BF_CHECK_DO_38(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38) \
+    RT_BF_CHECK_DO_37(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38)
+#define RT_BF_CHECK_DO_39(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39) \
+    RT_BF_CHECK_DO_38(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39)
+#define RT_BF_CHECK_DO_40(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40) \
+    RT_BF_CHECK_DO_39(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40)
+#define RT_BF_CHECK_DO_41(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41) \
+    RT_BF_CHECK_DO_40(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41)
+#define RT_BF_CHECK_DO_42(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42) \
+    RT_BF_CHECK_DO_41(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42)
+#define RT_BF_CHECK_DO_43(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43) \
+    RT_BF_CHECK_DO_42(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43)
+#define RT_BF_CHECK_DO_44(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44) \
+    RT_BF_CHECK_DO_43(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44)
+#define RT_BF_CHECK_DO_45(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45) \
+    RT_BF_CHECK_DO_44(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45)
+#define RT_BF_CHECK_DO_46(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46) \
+    RT_BF_CHECK_DO_45(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46)
+#define RT_BF_CHECK_DO_47(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47) \
+    RT_BF_CHECK_DO_46(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47)
+#define RT_BF_CHECK_DO_48(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48) \
+    RT_BF_CHECK_DO_47(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48)
+#define RT_BF_CHECK_DO_49(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49) \
+    RT_BF_CHECK_DO_48(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49)
+#define RT_BF_CHECK_DO_50(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50) \
+    RT_BF_CHECK_DO_49(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50)
+#define RT_BF_CHECK_DO_51(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51) \
+    RT_BF_CHECK_DO_40(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51)
+#define RT_BF_CHECK_DO_52(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52) \
+    RT_BF_CHECK_DO_51(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52)
+#define RT_BF_CHECK_DO_53(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53) \
+    RT_BF_CHECK_DO_52(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53)
+#define RT_BF_CHECK_DO_54(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54) \
+    RT_BF_CHECK_DO_53(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54)
+#define RT_BF_CHECK_DO_55(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55) \
+    RT_BF_CHECK_DO_54(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55)
+#define RT_BF_CHECK_DO_56(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56) \
+    RT_BF_CHECK_DO_55(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56)
+#define RT_BF_CHECK_DO_57(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57) \
+    RT_BF_CHECK_DO_56(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57)
+#define RT_BF_CHECK_DO_58(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58) \
+    RT_BF_CHECK_DO_57(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58)
+#define RT_BF_CHECK_DO_59(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59) \
+    RT_BF_CHECK_DO_58(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59)
+#define RT_BF_CHECK_DO_60(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60) \
+    RT_BF_CHECK_DO_59(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60)
+#define RT_BF_CHECK_DO_61(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60, f61) \
+    RT_BF_CHECK_DO_60(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60, f61)
+#define RT_BF_CHECK_DO_62(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60, f61, f62) \
+    RT_BF_CHECK_DO_61(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60, f61, f62)
+#define RT_BF_CHECK_DO_63(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60, f61, f62, f63) \
+    RT_BF_CHECK_DO_62(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60, f61, f62, f63)
+#define RT_BF_CHECK_DO_64(a_DoThis, a_uLeft, a_RightPrefix,                                       f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60, f61, f62, f63, f64) \
+    RT_BF_CHECK_DO_63(a_DoThis, RT_BF_CHECK_DO_1(a_DoThis, a_uLeft, a_RightPrefix,f1), a_RightPrefix, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, f27, f28, f29, f30, f31, f32, f33, f34, f35, f36, f37, f38, f39, f40, f41, f42, f43, f44, f45, f46, f47, f48, f49, f50, f51, f52, f53, f54, f55, f56, f57, f58, f59, f60, f61, f62, f63, f64)
+/** @} */
+
+/** @def RT_BF_ASSERT_COMPILE_CHECKS
+ * Emits a series of AssertCompile statements checking that the bit-field
+ * declarations doesn't overlap, has holes, and generally makes some sense.
+ *
+ * This requires variadic macros because its too much to type otherwise.
+ */
+#if defined(RT_COMPILER_SUPPORTS_VA_ARGS) || defined(DOXYGEN_RUNNING)
+# define RT_BF_ASSERT_COMPILE_CHECKS(a_Prefix, a_uZero, a_uCovered, a_Fields) \
+    AssertCompile(RT_BF_CHECK_DO_N(RT_BF_CHECK_DO_OR_MASK,     a_uZero, a_Prefix, RT_UNPACK_ARGS a_Fields ) == a_uCovered); \
+    AssertCompile(RT_BF_CHECK_DO_N(RT_BF_CHECK_DO_XOR_MASK, a_uCovered, a_Prefix, RT_UNPACK_ARGS a_Fields ) == 0); \
+    AssertCompile(RT_BF_CHECK_DO_N(RT_BF_CHECK_DO_1ST_MASK_BIT,   true, a_Prefix, RT_UNPACK_ARGS a_Fields ) == true); \
+    AssertCompile(RT_BF_CHECK_DO_N(RT_BF_CHECK_DO_MASK_START,     true, a_Prefix, RT_UNPACK_ARGS a_Fields ) == true)
+/** Bit field compile time check helper
+ * @internal */
+# define RT_BF_CHECK_DO_N(a_DoThis, a_uLeft, a_RightPrefix, ...) \
+        RT_UNPACK_CALL(RT_CONCAT(RT_BF_CHECK_DO_, RT_EXPAND(RT_COUNT_VA_ARGS(__VA_ARGS__))), (a_DoThis, a_uLeft, a_RightPrefix, __VA_ARGS__))
+#else
+# define RT_BF_ASSERT_COMPILE_CHECKS(a_Prefix, a_uZero, a_uCovered, a_Fields) AssertCompile(true)
+#endif
+
+
+/** @def RT_ALIGN
+ * Align macro.
+ * @param   u           Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ *
+ * @remark  Be extremely careful when using this macro with type which sizeof != sizeof int.
+ *          When possible use any of the other RT_ALIGN_* macros. And when that's not
+ *          possible, make 101% sure that uAlignment is specified with a right sized type.
+ *
+ *          Specifying an unsigned 32-bit alignment constant with a 64-bit value will give
+ *          you a 32-bit return value!
+ *
+ *          In short: Don't use this macro. Use RT_ALIGN_T() instead.
+ */
+#define RT_ALIGN(u, uAlignment)                 ( ((u) + ((uAlignment) - 1)) & ~((uAlignment) - 1) )
+
+/** @def RT_ALIGN_T
+ * Align macro.
+ * @param   u           Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ * @param   type        Integer type to use while aligning.
+ * @remark  This macro is the preferred alignment macro, it doesn't have any of the pitfalls RT_ALIGN has.
+ */
+#define RT_ALIGN_T(u, uAlignment, type)         ( ((type)(u) + ((uAlignment) - 1)) & ~(type)((uAlignment) - 1) )
+
+/** @def RT_ALIGN_32
+ * Align macro for a 32-bit value.
+ * @param   u32         Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ */
+#define RT_ALIGN_32(u32, uAlignment)            RT_ALIGN_T(u32, uAlignment, uint32_t)
+
+/** @def RT_ALIGN_64
+ * Align macro for a 64-bit value.
+ * @param   u64         Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ */
+#define RT_ALIGN_64(u64, uAlignment)            RT_ALIGN_T(u64, uAlignment, uint64_t)
+
+/** @def RT_ALIGN_Z
+ * Align macro for size_t.
+ * @param   cb          Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ */
+#define RT_ALIGN_Z(cb, uAlignment)              RT_ALIGN_T(cb, uAlignment, size_t)
+
+/** @def RT_ALIGN_P
+ * Align macro for pointers.
+ * @param   pv          Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ */
+#define RT_ALIGN_P(pv, uAlignment)              RT_ALIGN_PT(pv, uAlignment, void *)
+
+/** @def RT_ALIGN_PT
+ * Align macro for pointers with type cast.
+ * @param   u           Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ * @param   CastType    The type to cast the result to.
+ */
+#define RT_ALIGN_PT(u, uAlignment, CastType)    ( (CastType)RT_ALIGN_T(u, uAlignment, uintptr_t) )
+
+/** @def RT_ALIGN_R3PT
+ * Align macro for ring-3 pointers with type cast.
+ * @param   u           Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ * @param   CastType    The type to cast the result to.
+ */
+#define RT_ALIGN_R3PT(u, uAlignment, CastType)  ( (CastType)RT_ALIGN_T(u, uAlignment, RTR3UINTPTR) )
+
+/** @def RT_ALIGN_R0PT
+ * Align macro for ring-0 pointers with type cast.
+ * @param   u           Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ * @param   CastType    The type to cast the result to.
+ */
+#define RT_ALIGN_R0PT(u, uAlignment, CastType)  ( (CastType)RT_ALIGN_T(u, uAlignment, RTR0UINTPTR) )
+
+/** @def RT_ALIGN_GCPT
+ * Align macro for GC pointers with type cast.
+ * @param   u           Value to align.
+ * @param   uAlignment  The alignment. Power of two!
+ * @param   CastType        The type to cast the result to.
+ */
+#define RT_ALIGN_GCPT(u, uAlignment, CastType)  ( (CastType)RT_ALIGN_T(u, uAlignment, RTGCUINTPTR) )
+
+
+/** @def RT_OFFSETOF
+ * Our own special offsetof() variant, returns a signed result.
+ *
+ * @returns offset into the structure of the specified member. signed.
+ * @param   type    Structure type.
+ * @param   member  Member.
+ *
+ * @remarks Only use this for static offset calculations. Please
+ *          use RT_UOFFSETOF_DYN for dynamic ones (i.e. involves
+ *          non-constant array indexing).
+ *
+ */
+#if RT_GNUC_PREREQ(4, 0)
+# define RT_OFFSETOF(type, member)              ( (int)__builtin_offsetof(type, member) )
+#else
+# define RT_OFFSETOF(type, member)              ( (int)(intptr_t)&( ((type *)(void *)0)->member) )
+#endif
+
+/** @def RT_UOFFSETOF
+ * Our own offsetof() variant, returns an unsigned result.
+ *
+ * @returns offset into the structure of the specified member. unsigned.
+ * @param   type    Structure type.
+ * @param   member  Member.
+ *
+ * @remarks Only use this for static offset calculations. Please
+ *          use RT_UOFFSETOF_DYN for dynamic ones (i.e. involves
+ *          non-constant array indexing).
+ */
+#if RT_GNUC_PREREQ(4, 0)
+# define RT_UOFFSETOF(type, member)             ( (uintptr_t)__builtin_offsetof(type, member) )
+#else
+# define RT_UOFFSETOF(type, member)             ( (uintptr_t)&( ((type *)(void *)0)->member) )
+#endif
+
+/** @def RT_OFFSETOF_ADD
+ * RT_OFFSETOF with an addend.
+ *
+ * @returns offset into the structure of the specified member. signed.
+ * @param   type    Structure type.
+ * @param   member  Member.
+ * @param   addend  The addend to add to the offset.
+ *
+ * @remarks Only use this for static offset calculations.
+ */
+#define RT_OFFSETOF_ADD(type, member, addend)   ( (int)RT_UOFFSETOF_ADD(type, member, addend) )
+
+/** @def RT_UOFFSETOF_ADD
+ * RT_UOFFSETOF with an addend.
+ *
+ * @returns offset into the structure of the specified member. signed.
+ * @param   type    Structure type.
+ * @param   member  Member.
+ * @param   addend  The addend to add to the offset.
+ *
+ * @remarks Only use this for static offset calculations.
+ */
+#if RT_GNUC_PREREQ(4, 0)
+# define RT_UOFFSETOF_ADD(type, member, addend)  ( (uintptr_t)(__builtin_offsetof(type, member) + (addend)))
+#else
+# define RT_UOFFSETOF_ADD(type, member, addend)  ( (uintptr_t)&( ((type *)(void *)(uintptr_t)(addend))->member) )
+#endif
+
+/** @def RT_UOFFSETOF_DYN
+ * Dynamic (runtime) structure offset calculations, involving
+ * indexing of array members via variable.
+ *
+ * @returns offset into the structure of the specified member. signed.
+ * @param   type        Structure type.
+ * @param   memberarray Member.
+ */
+#if defined(__cplusplus) && RT_GNUC_PREREQ(4, 4)
+# define RT_UOFFSETOF_DYN(type, memberarray)    ( (uintptr_t)&( ((type *)(void *)0x1000)->memberarray) - 0x1000 )
+#else
+# define RT_UOFFSETOF_DYN(type, memberarray)    ( (uintptr_t)&( ((type *)(void *)0)->memberarray) )
+#endif
+
+
+/** @def RT_SIZEOFMEMB
+ * Get the size of a structure member.
+ *
+ * @returns size of the structure member.
+ * @param   type    Structure type.
+ * @param   member  Member.
+ */
+#define RT_SIZEOFMEMB(type, member)             ( sizeof(((type *)(void *)0)->member) )
+
+/** @def RT_UOFFSET_AFTER
+ * Returns the offset of the first byte following a structure/union member.
+ *
+ * @return byte offset into the struct.
+ * @param   a_Type      Structure type.
+ * @param   a_Member    The member name.
+ */
+#define RT_UOFFSET_AFTER(a_Type, a_Member)      ( RT_UOFFSETOF(a_Type, a_Member) + RT_SIZEOFMEMB(a_Type, a_Member) )
+
+/** @def RT_FROM_MEMBER
+ * Convert a pointer to a structure member into a pointer to the structure.
+ *
+ * @returns pointer to the structure.
+ * @param   pMem    Pointer to the member.
+ * @param   Type    Structure type.
+ * @param   Member  Member name.
+ */
+#define RT_FROM_MEMBER(pMem, Type, Member)      ( (Type *) ((uint8_t *)(void *)(pMem) - RT_UOFFSETOF(Type, Member)) )
+
+/** @def RT_FROM_CPP_MEMBER
+ * Same as RT_FROM_MEMBER except it avoids the annoying g++ warnings about
+ * invalid access to non-static data member of NULL object.
+ *
+ * @returns pointer to the structure.
+ * @param   pMem    Pointer to the member.
+ * @param   Type    Structure type.
+ * @param   Member  Member name.
+ *
+ * @remarks Using the __builtin_offsetof does not shut up the compiler.
+ */
+#if defined(__GNUC__) && defined(__cplusplus)
+# define RT_FROM_CPP_MEMBER(pMem, Type, Member) \
+        ( (Type *) ((uintptr_t)(pMem) - (uintptr_t)&((Type *)0x1000)->Member + 0x1000U) )
+#else
+# define RT_FROM_CPP_MEMBER(pMem, Type, Member) RT_FROM_MEMBER(pMem, Type, Member)
+#endif
+
+/** @def RT_FROM_MEMBER_DYN
+ * Convert a pointer to a structure member into a pointer to the structure.
+ *
+ * @returns pointer to the structure.
+ * @param   pMem    Pointer to the member.
+ * @param   Type    Structure type.
+ * @param   Member  Member name dynamic size (some array is index by
+ *                  non-constant value).
+ */
+#define RT_FROM_MEMBER_DYN(pMem, Type, Member)  ( (Type *) ((uint8_t *)(void *)(pMem) - RT_UOFFSETOF_DYN(Type, Member)) )
+
+/** @def RT_ELEMENTS
+ * Calculates the number of elements in a statically sized array.
+ * @returns Element count.
+ * @param   aArray      Array in question.
+ */
+#define RT_ELEMENTS(aArray)                     ( sizeof(aArray) / sizeof((aArray)[0]) )
+
+/** @def RT_SAFE_SUBSCRIPT
+ * Safe array subscript using modulo and size_t cast.
+ * @param   a_Array     The array.
+ * @param   a_idx       The array index, cast to size_t to ensure unsigned.
+ */
+#define RT_SAFE_SUBSCRIPT(a_Array, a_idx)      (a_Array)[(size_t)(a_idx) % RT_ELEMENTS(a_Array)]
+
+/** @def RT_SAFE_SUBSCRIPT32
+ * Safe array subscript using modulo and uint32_t cast.
+ * @param   a_Array     The array.
+ * @param   a_idx       The array index, cast to size_t to ensure unsigned.
+ * @note    Only consider using this if array size is not power of two.
+ */
+#define RT_SAFE_SUBSCRIPT32(a_Array, a_idx)    (a_Array)[(uint32_t)(a_idx) % RT_ELEMENTS(a_Array)]
+
+/** @def RT_SAFE_SUBSCRIPT16
+ * Safe array subscript using modulo and uint16_t cast.
+ * @param   a_Array     The array.
+ * @param   a_idx       The array index, cast to size_t to ensure unsigned.
+ * @note    Only consider using this if array size is not power of two.
+ */
+#define RT_SAFE_SUBSCRIPT16(a_Array, a_idx)     (a_Array)[(uint16_t)(a_idx) % RT_ELEMENTS(a_Array)]
+
+/** @def RT_SAFE_SUBSCRIPT8
+ * Safe array subscript using modulo and uint8_t cast.
+ * @param   a_Array     The array.
+ * @param   a_idx       The array index, cast to size_t to ensure unsigned.
+ * @note    Only consider using this if array size is not power of two.
+ */
+#define RT_SAFE_SUBSCRIPT8(a_Array, a_idx)      (a_Array)[(uint8_t)(a_idx) % RT_ELEMENTS(a_Array)]
+
+/** @def RT_SAFE_SUBSCRIPT_NC
+ * Safe array subscript using modulo but no cast.
+ * @param   a_Array     The array.
+ * @param   a_idx       The array index - assumes unsigned type.
+ * @note    Only consider using this if array size is not power of two.
+ */
+#define RT_SAFE_SUBSCRIPT_NC(a_Array, a_idx)    (a_Array)[(a_idx) % RT_ELEMENTS(a_Array)]
+
+/** @def RT_FLEXIBLE_ARRAY
+ * What to up inside the square brackets when declaring a structure member
+ * with a flexible size.
+ *
+ * @note    RT_FLEXIBLE_ARRAY_EXTENSION must always preceed the type, unless
+ *          it's C-only code.
+ *
+ * @note    Use RT_UOFFSETOF() to calculate the structure size.
+ *
+ * @note    Never to a sizeof() on the structure or member!
+ *
+ * @note    The member must be the last one.
+ *
+ * @note    GCC does not permit using this in a union.  So, for unions you must
+ *          use RT_FLEXIBLE_ARRAY_IN_UNION instead.
+ *
+ * @note    GCC does not permit using this in nested structures, where as MSC
+ *          does.  So, use RT_FLEXIBLE_ARRAY_NESTED for that.
+ *
+ * @sa      RT_FLEXIBLE_ARRAY_NESTED, RT_FLEXIBLE_ARRAY_IN_UNION
+ */
+#if RT_MSC_PREREQ(RT_MSC_VER_VS2005) /** @todo Probably much much earlier. */ \
+ || (defined(__cplusplus) && (   RT_GNUC_PREREQ(6, 1) \
+                              && (  !RT_GNUC_PREREQ(7, 0) /* gcc-7 warns again */ \
+                                  || RT_GNUC_PREREQ(10, 0) /* gcc-10 works with __extension__, the ones in between needs testing */ ))) \
+ || defined(__WATCOMC__) /* openwatcom 1.9 supports it, we don't care about older atm. */ \
+ || RT_CLANG_PREREQ_EX(3, 4, 0) /* Only tested clang v3.4, support is probably older. */
+# define RT_FLEXIBLE_ARRAY
+# if defined(__cplusplus) && defined(_MSC_VER)
+#  pragma warning(disable:4200) /* -wd4200 does not work with VS2010 */
+# endif
+#elif defined(__STDC_VERSION__)
+# if __STDC_VERSION__ >= 1999901L
+#  define RT_FLEXIBLE_ARRAY
+# else
+#  define RT_FLEXIBLE_ARRAY                     1
+# endif
+#else
+# define RT_FLEXIBLE_ARRAY                      1
+#endif
+
+/** @def RT_FLEXIBLE_ARRAY_EXTENSION
+ * A trick to make GNU C++ quietly accept flexible arrays in C++ code when
+ * pedantic warnings are enabled.  Put this on the line before the flexible
+ * array. */
+#if (RT_GNUC_PREREQ(10, 0) && defined(__cplusplus)) || defined(DOXGYEN_RUNNING)
+# define RT_FLEXIBLE_ARRAY_EXTENSION            RT_GCC_EXTENSION
+#else
+# define RT_FLEXIBLE_ARRAY_EXTENSION
+#endif
+
+/** @def RT_FLEXIBLE_ARRAY_NESTED
+ * Variant of RT_FLEXIBLE_ARRAY for use in structures that are nested.
+ *
+ * GCC only allow the use of flexible array member in the top structure, whereas
+ * MSC is less strict and let you do struct { struct { char szName[]; } s; };
+ *
+ * @note    See notes for RT_FLEXIBLE_ARRAY.
+ *
+ * @note    GCC does not permit using this in a union.  So, for unions you must
+ *          use RT_FLEXIBLE_ARRAY_IN_NESTED_UNION instead.
+ *
+ * @sa      RT_FLEXIBLE_ARRAY, RT_FLEXIBLE_ARRAY_IN_NESTED_UNION
+ */
+#ifdef _MSC_VER
+# define RT_FLEXIBLE_ARRAY_NESTED               RT_FLEXIBLE_ARRAY
+#else
+# define RT_FLEXIBLE_ARRAY_NESTED               1
+#endif
+
+/** @def RT_FLEXIBLE_ARRAY_IN_UNION
+ * The union version of RT_FLEXIBLE_ARRAY.
+ *
+ * @remarks GCC does not support flexible array members in unions, 6.1.x
+ *          actively checks for this.  Visual C++ 2010 seems happy with it.
+ *
+ * @note    See notes for RT_FLEXIBLE_ARRAY.
+ *
+ * @sa      RT_FLEXIBLE_ARRAY, RT_FLEXIBLE_ARRAY_IN_NESTED_UNION
+ */
+#ifdef _MSC_VER
+# define RT_FLEXIBLE_ARRAY_IN_UNION             RT_FLEXIBLE_ARRAY
+#else
+# define RT_FLEXIBLE_ARRAY_IN_UNION             1
+#endif
+
+/** @def RT_FLEXIBLE_ARRAY_IN_NESTED_UNION
+ * The union version of RT_FLEXIBLE_ARRAY_NESTED.
+ *
+ * @note    See notes for RT_FLEXIBLE_ARRAY.
+ *
+ * @sa      RT_FLEXIBLE_ARRAY, RT_FLEXIBLE_ARRAY_IN_NESTED_UNION
+ */
+#ifdef _MSC_VER
+# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION      RT_FLEXIBLE_ARRAY_NESTED
+#else
+# define RT_FLEXIBLE_ARRAY_IN_NESTED_UNION      1
+#endif
+
+/** @def RT_UNION_NM
+ * For compilers (like DTrace) that does not grok nameless unions, we have a
+ * little hack to make them palatable.
+ */
+/** @def RT_STRUCT_NM
+ * For compilers (like DTrace) that does not grok nameless structs (it is
+ * non-standard C++), we have a little hack to make them palatable.
+ */
+#ifdef IPRT_WITHOUT_NAMED_UNIONS_AND_STRUCTS
+# define RT_UNION_NM(a_Nm)  a_Nm
+# define RT_STRUCT_NM(a_Nm) a_Nm
+#else
+# define RT_UNION_NM(a_Nm)
+# define RT_STRUCT_NM(a_Nm)
+#endif
+
+/**
+ * Checks if the value is a power of two.
+ *
+ * @returns true if power of two, false if not.
+ * @param   uVal                The value to test.
+ * @remarks 0 is a power of two.
+ * @see     VERR_NOT_POWER_OF_TWO
+ */
+#define RT_IS_POWER_OF_TWO(uVal)                ( ((uVal) & ((uVal) - 1)) == 0)
+
+#ifdef RT_OS_OS2
+/* Undefine RT_MAX since there is an unfortunate clash with the max
+   resource type define in os2.h. */
+# undef RT_MAX
+#endif
+
+/** @def RT_MAX
+ * Finds the maximum value.
+ * @returns The higher of the two.
+ * @param   Value1      Value 1
+ * @param   Value2      Value 2
+ */
+#define RT_MAX(Value1, Value2)                  ( (Value1) >= (Value2) ? (Value1) : (Value2) )
+
+/** @def RT_MIN
+ * Finds the minimum value.
+ * @returns The lower of the two.
+ * @param   Value1      Value 1
+ * @param   Value2      Value 2
+ */
+#define RT_MIN(Value1, Value2)                  ( (Value1) <= (Value2) ? (Value1) : (Value2) )
+
+/** @def RT_CLAMP
+ * Clamps the value to minimum and maximum values.
+ * @returns The clamped value.
+ * @param   Value       The value to check.
+ * @param   Min         Minimum value.
+ * @param   Max         Maximum value.
+ */
+#define RT_CLAMP(Value, Min, Max)               ( (Value) > (Max) ? (Max) : (Value) < (Min) ? (Min) : (Value) )
+
+/** @def RT_ABS
+ * Get the absolute (non-negative) value.
+ * @returns The absolute value of Value.
+ * @param   Value       The value.
+ */
+#define RT_ABS(Value)                           ( (Value) >= 0 ? (Value) : -(Value) )
+
+/** @def RT_BOOL
+ * Turn non-zero/zero into true/false
+ * @returns The resulting boolean value.
+ * @param   Value       The value.
+ */
+#define RT_BOOL(Value)                          ( !!(Value) )
+
+/** @def RT_LO_U8
+ * Gets the low uint8_t of a uint16_t or something equivalent. */
+#ifdef __GNUC__
+# define RT_LO_U8(a)    __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint16_t)); (uint8_t)(a); })
+#elif defined(_MSC_VER) /* shut up cast truncates constant value warnings */
+# define RT_LO_U8(a)                            ( (uint8_t)(UINT8_MAX & (a)) )
+#else
+# define RT_LO_U8(a)                            ( (uint8_t)(a) )
+#endif
+/** @def RT_HI_U8
+ * Gets the high uint8_t of a uint16_t or something equivalent. */
+#ifdef __GNUC__
+# define RT_HI_U8(a)    __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint16_t)); (uint8_t)((a) >> 8); })
+#else
+# define RT_HI_U8(a)                            ( (uint8_t)((a) >> 8) )
+#endif
+
+/** @def RT_LO_U16
+ * Gets the low uint16_t of a uint32_t or something equivalent. */
+#ifdef __GNUC__
+# define RT_LO_U16(a)   __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint32_t)); (uint16_t)(a); })
+#elif defined(_MSC_VER) /* shut up cast truncates constant value warnings */
+# define RT_LO_U16(a)                           ( (uint16_t)(UINT16_MAX & (a)) )
+#else
+# define RT_LO_U16(a)                           ( (uint16_t)(a) )
+#endif
+/** @def RT_HI_U16
+ * Gets the high uint16_t of a uint32_t or something equivalent. */
+#ifdef __GNUC__
+# define RT_HI_U16(a)   __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint32_t)); (uint16_t)((a) >> 16); })
+#else
+# define RT_HI_U16(a)                           ( (uint16_t)((a) >> 16) )
+#endif
+
+/** @def RT_LO_U32
+ * Gets the low uint32_t of a uint64_t or something equivalent. */
+#ifdef __GNUC__
+# define RT_LO_U32(a)   __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint64_t)); (uint32_t)(a); })
+#elif defined(_MSC_VER) /* shut up cast truncates constant value warnings */
+# define RT_LO_U32(a)                           ( (uint32_t)(UINT32_MAX & (a)) )
+#else
+# define RT_LO_U32(a)                           ( (uint32_t)(a) )
+#endif
+/** @def RT_HI_U32
+ * Gets the high uint32_t of a uint64_t or something equivalent. */
+#ifdef __GNUC__
+# define RT_HI_U32(a)   __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint64_t)); (uint32_t)((a) >> 32); })
+#else
+# define RT_HI_U32(a)                           ( (uint32_t)((a) >> 32) )
+#endif
+
+/** @def RT_BYTE1
+ * Gets the first byte of something. */
+#define RT_BYTE1(a)                             ( (uint8_t)((a)         & 0xff) )
+/** @def RT_BYTE2
+ * Gets the second byte of something. */
+#define RT_BYTE2(a)                             ( (uint8_t)(((a) >>  8) & 0xff) )
+/** @def RT_BYTE3
+ * Gets the second byte of something. */
+#define RT_BYTE3(a)                             ( (uint8_t)(((a) >> 16) & 0xff) )
+/** @def RT_BYTE4
+ * Gets the fourth byte of something. */
+#define RT_BYTE4(a)                             ( (uint8_t)(((a) >> 24) & 0xff) )
+/** @def RT_BYTE5
+ * Gets the fifth byte of something. */
+#define RT_BYTE5(a)                             ( (uint8_t)(((a) >> 32) & 0xff) )
+/** @def RT_BYTE6
+ * Gets the sixth byte of something. */
+#define RT_BYTE6(a)                             ( (uint8_t)(((a) >> 40) & 0xff) )
+/** @def RT_BYTE7
+ * Gets the seventh byte of something. */
+#define RT_BYTE7(a)                             ( (uint8_t)(((a) >> 48) & 0xff) )
+/** @def RT_BYTE8
+ * Gets the eight byte of something. */
+#define RT_BYTE8(a)                             ( (uint8_t)(((a) >> 56) & 0xff) )
+
+
+/** @def RT_LODWORD
+ * Gets the low dword (=uint32_t) of something.
+ * @deprecated  Use RT_LO_U32. */
+#define RT_LODWORD(a)                           ( (uint32_t)(a) )
+/** @def RT_HIDWORD
+ * Gets the high dword (=uint32_t) of a 64-bit of something.
+ * @deprecated  Use RT_HI_U32. */
+#define RT_HIDWORD(a)                           ( (uint32_t)((a) >> 32) )
+
+/** @def RT_LOWORD
+ * Gets the low word (=uint16_t) of something.
+ * @deprecated  Use RT_LO_U16. */
+#define RT_LOWORD(a)                            ( (a) & 0xffff )
+/** @def RT_HIWORD
+ * Gets the high word (=uint16_t) of a 32-bit something.
+ * @deprecated  Use RT_HI_U16. */
+#define RT_HIWORD(a)                            ( (a) >> 16 )
+
+/** @def RT_LOBYTE
+ * Gets the low byte of something.
+ * @deprecated  Use RT_LO_U8. */
+#define RT_LOBYTE(a)                            ( (a) & 0xff )
+/** @def RT_HIBYTE
+ * Gets the high byte of a 16-bit something.
+ * @deprecated  Use RT_HI_U8. */
+#define RT_HIBYTE(a)                            ( (a) >> 8 )
+
+
+/** @def RT_MAKE_U64
+ * Constructs a uint64_t value from two uint32_t values.
+ */
+#define RT_MAKE_U64(Lo, Hi)                     ( (uint64_t)((uint32_t)(Hi)) << 32 | (uint32_t)(Lo) )
+
+/** @def RT_MAKE_U64_FROM_U16
+ * Constructs a uint64_t value from four uint16_t values.
+ */
+#define RT_MAKE_U64_FROM_U16(w0, w1, w2, w3) \
+    ((uint64_t)(  (uint64_t)((uint16_t)(w3)) << 48 \
+                | (uint64_t)((uint16_t)(w2)) << 32 \
+                | (uint32_t)((uint16_t)(w1)) << 16 \
+                |            (uint16_t)(w0) ))
+
+/** @def RT_MAKE_U64_FROM_U8
+ * Constructs a uint64_t value from eight uint8_t values.
+ */
+#define RT_MAKE_U64_FROM_U8(b0, b1, b2, b3, b4, b5, b6, b7) \
+    ((uint64_t)(  (uint64_t)((uint8_t)(b7)) << 56 \
+                | (uint64_t)((uint8_t)(b6)) << 48 \
+                | (uint64_t)((uint8_t)(b5)) << 40 \
+                | (uint64_t)((uint8_t)(b4)) << 32 \
+                | (uint32_t)((uint8_t)(b3)) << 24 \
+                | (uint32_t)((uint8_t)(b2)) << 16 \
+                | (uint16_t)((uint8_t)(b1)) << 8 \
+                |            (uint8_t)(b0) ))
+
+/** @def RT_MAKE_U32
+ * Constructs a uint32_t value from two uint16_t values.
+ */
+#define RT_MAKE_U32(Lo, Hi) \
+    ((uint32_t)(  (uint32_t)((uint16_t)(Hi)) << 16 \
+                | (uint16_t)(Lo) ))
+
+/** @def RT_MAKE_U32_FROM_U8
+ * Constructs a uint32_t value from four uint8_t values.
+ */
+#define RT_MAKE_U32_FROM_U8(b0, b1, b2, b3) \
+    ((uint32_t)(  (uint32_t)((uint8_t)(b3)) << 24 \
+                | (uint32_t)((uint8_t)(b2)) << 16 \
+                | (uint16_t)((uint8_t)(b1)) << 8 \
+                |            (uint8_t)(b0) ))
+
+/** @def RT_MAKE_U16
+ * Constructs a uint16_t value from two uint8_t values.
+ */
+#define RT_MAKE_U16(Lo, Hi) \
+    ((uint16_t)(  (uint16_t)((uint8_t)(Hi)) << 8 \
+                | (uint8_t)(Lo) ))
+
+
+/** @def RT_BSWAP_U64
+ * Reverses the byte order of an uint64_t value. */
+#if 0
+# define RT_BSWAP_U64(u64)  RT_BSWAP_U64_C(u64)
+#elif defined(__GNUC__)
+# define RT_BSWAP_U64(u64)  (__builtin_constant_p((u64)) \
+                            ? RT_BSWAP_U64_C(u64) : ASMByteSwapU64(u64))
+#else
+# define RT_BSWAP_U64(u64)  ASMByteSwapU64(u64)
+#endif
+
+/** @def RT_BSWAP_U32
+ * Reverses the byte order of an uint32_t value. */
+#if 0
+# define RT_BSWAP_U32(u32)  RT_BSWAP_U32_C(u32)
+#elif defined(__GNUC__)
+# define RT_BSWAP_U32(u32)  (__builtin_constant_p((u32)) \
+                            ? RT_BSWAP_U32_C(u32) : ASMByteSwapU32(u32))
+#else
+# define RT_BSWAP_U32(u32)  ASMByteSwapU32(u32)
+#endif
+
+/** @def RT_BSWAP_U16
+ * Reverses the byte order of an uint16_t value. */
+#if 0
+# define RT_BSWAP_U16(u16)  RT_BSWAP_U16_C(u16)
+#elif defined(__GNUC__)
+# define RT_BSWAP_U16(u16)  (__builtin_constant_p((u16)) \
+                            ? RT_BSWAP_U16_C(u16) : ASMByteSwapU16(u16))
+#else
+# define RT_BSWAP_U16(u16)  ASMByteSwapU16(u16)
+#endif
+
+
+/** @def RT_BSWAP_U64_C
+ * Reverses the byte order of an uint64_t constant. */
+#define RT_BSWAP_U64_C(u64) RT_MAKE_U64(RT_BSWAP_U32_C((u64) >> 32), RT_BSWAP_U32_C((u64) & 0xffffffff))
+
+/** @def RT_BSWAP_U32_C
+ * Reverses the byte order of an uint32_t constant. */
+#define RT_BSWAP_U32_C(u32) RT_MAKE_U32_FROM_U8(RT_BYTE4(u32), RT_BYTE3(u32), RT_BYTE2(u32), RT_BYTE1(u32))
+
+/** @def RT_BSWAP_U16_C
+ * Reverses the byte order of an uint16_t constant. */
+#define RT_BSWAP_U16_C(u16) RT_MAKE_U16(RT_HIBYTE(u16), RT_LOBYTE(u16))
+
+
+/** @def RT_H2LE_U64
+ * Converts an uint64_t value from host to little endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2LE_U64(u64)   RT_BSWAP_U64(u64)
+#else
+# define RT_H2LE_U64(u64)   (u64)
+#endif
+
+/** @def RT_H2LE_U64_C
+ * Converts an uint64_t constant from host to little endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2LE_U64_C(u64) RT_BSWAP_U64_C(u64)
+#else
+# define RT_H2LE_U64_C(u64) (u64)
+#endif
+
+/** @def RT_H2LE_U32
+ * Converts an uint32_t value from host to little endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2LE_U32(u32)   RT_BSWAP_U32(u32)
+#else
+# define RT_H2LE_U32(u32)   (u32)
+#endif
+
+/** @def RT_H2LE_U32_C
+ * Converts an uint32_t constant from host to little endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2LE_U32_C(u32) RT_BSWAP_U32_C(u32)
+#else
+# define RT_H2LE_U32_C(u32) (u32)
+#endif
+
+/** @def RT_H2LE_U16
+ * Converts an uint16_t value from host to little endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2LE_U16(u16)   RT_BSWAP_U16(u16)
+#else
+# define RT_H2LE_U16(u16)   (u16)
+#endif
+
+/** @def RT_H2LE_U16_C
+ * Converts an uint16_t constant from host to little endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2LE_U16_C(u16) RT_BSWAP_U16_C(u16)
+#else
+# define RT_H2LE_U16_C(u16) (u16)
+#endif
+
+
+/** @def RT_LE2H_U64
+ * Converts an uint64_t value from little endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_LE2H_U64(u64)   RT_BSWAP_U64(u64)
+#else
+# define RT_LE2H_U64(u64)   (u64)
+#endif
+
+/** @def RT_LE2H_U64_C
+ * Converts an uint64_t constant from little endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_LE2H_U64_C(u64) RT_BSWAP_U64_C(u64)
+#else
+# define RT_LE2H_U64_C(u64) (u64)
+#endif
+
+/** @def RT_LE2H_U32
+ * Converts an uint32_t value from little endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_LE2H_U32(u32)   RT_BSWAP_U32(u32)
+#else
+# define RT_LE2H_U32(u32)   (u32)
+#endif
+
+/** @def RT_LE2H_U32_C
+ * Converts an uint32_t constant from little endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_LE2H_U32_C(u32) RT_BSWAP_U32_C(u32)
+#else
+# define RT_LE2H_U32_C(u32) (u32)
+#endif
+
+/** @def RT_LE2H_U16
+ * Converts an uint16_t value from little endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_LE2H_U16(u16)   RT_BSWAP_U16(u16)
+#else
+# define RT_LE2H_U16(u16)   (u16)
+#endif
+
+/** @def RT_LE2H_U16_C
+ * Converts an uint16_t constant from little endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_LE2H_U16_C(u16) RT_BSWAP_U16_C(u16)
+#else
+# define RT_LE2H_U16_C(u16) (u16)
+#endif
+
+
+/** @def RT_H2BE_U64
+ * Converts an uint64_t value from host to big endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2BE_U64(u64)   (u64)
+#else
+# define RT_H2BE_U64(u64)   RT_BSWAP_U64(u64)
+#endif
+
+/** @def RT_H2BE_U64_C
+ * Converts an uint64_t constant from host to big endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2BE_U64_C(u64) (u64)
+#else
+# define RT_H2BE_U64_C(u64) RT_BSWAP_U64_C(u64)
+#endif
+
+/** @def RT_H2BE_U32
+ * Converts an uint32_t value from host to big endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2BE_U32(u32)   (u32)
+#else
+# define RT_H2BE_U32(u32)   RT_BSWAP_U32(u32)
+#endif
+
+/** @def RT_H2BE_U32_C
+ * Converts an uint32_t constant from host to big endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2BE_U32_C(u32) (u32)
+#else
+# define RT_H2BE_U32_C(u32) RT_BSWAP_U32_C(u32)
+#endif
+
+/** @def RT_H2BE_U16
+ * Converts an uint16_t value from host to big endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2BE_U16(u16)   (u16)
+#else
+# define RT_H2BE_U16(u16)   RT_BSWAP_U16(u16)
+#endif
+
+/** @def RT_H2BE_U16_C
+ * Converts an uint16_t constant from host to big endian byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_H2BE_U16_C(u16) (u16)
+#else
+# define RT_H2BE_U16_C(u16) RT_BSWAP_U16_C(u16)
+#endif
+
+/** @def RT_BE2H_U64
+ * Converts an uint64_t value from big endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_BE2H_U64(u64)   (u64)
+#else
+# define RT_BE2H_U64(u64)   RT_BSWAP_U64(u64)
+#endif
+
+/** @def RT_BE2H_U64
+ * Converts an uint64_t constant from big endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_BE2H_U64_C(u64) (u64)
+#else
+# define RT_BE2H_U64_C(u64) RT_BSWAP_U64_C(u64)
+#endif
+
+/** @def RT_BE2H_U32
+ * Converts an uint32_t value from big endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_BE2H_U32(u32)   (u32)
+#else
+# define RT_BE2H_U32(u32)   RT_BSWAP_U32(u32)
+#endif
+
+/** @def RT_BE2H_U32_C
+ * Converts an uint32_t value from big endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_BE2H_U32_C(u32) (u32)
+#else
+# define RT_BE2H_U32_C(u32) RT_BSWAP_U32_C(u32)
+#endif
+
+/** @def RT_BE2H_U16
+ * Converts an uint16_t value from big endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_BE2H_U16(u16)   (u16)
+#else
+# define RT_BE2H_U16(u16)   RT_BSWAP_U16(u16)
+#endif
+
+/** @def RT_BE2H_U16_C
+ * Converts an uint16_t constant from big endian to host byte order. */
+#ifdef RT_BIG_ENDIAN
+# define RT_BE2H_U16_C(u16) (u16)
+#else
+# define RT_BE2H_U16_C(u16) RT_BSWAP_U16_C(u16)
+#endif
+
+
+/** @def RT_H2N_U64
+ * Converts an uint64_t value from host to network byte order. */
+#define RT_H2N_U64(u64)     RT_H2BE_U64(u64)
+
+/** @def RT_H2N_U64_C
+ * Converts an uint64_t constant from host to network byte order. */
+#define RT_H2N_U64_C(u64)   RT_H2BE_U64_C(u64)
+
+/** @def RT_H2N_U32
+ * Converts an uint32_t value from host to network byte order. */
+#define RT_H2N_U32(u32)     RT_H2BE_U32(u32)
+
+/** @def RT_H2N_U32_C
+ * Converts an uint32_t constant from host to network byte order. */
+#define RT_H2N_U32_C(u32)   RT_H2BE_U32_C(u32)
+
+/** @def RT_H2N_U16
+ * Converts an uint16_t value from host to network byte order. */
+#define RT_H2N_U16(u16)     RT_H2BE_U16(u16)
+
+/** @def RT_H2N_U16_C
+ * Converts an uint16_t constant from host to network byte order. */
+#define RT_H2N_U16_C(u16)   RT_H2BE_U16_C(u16)
+
+/** @def RT_N2H_U64
+ * Converts an uint64_t value from network to host byte order. */
+#define RT_N2H_U64(u64)     RT_BE2H_U64(u64)
+
+/** @def RT_N2H_U64_C
+ * Converts an uint64_t constant from network to host byte order. */
+#define RT_N2H_U64_C(u64)   RT_BE2H_U64_C(u64)
+
+/** @def RT_N2H_U32
+ * Converts an uint32_t value from network to host byte order. */
+#define RT_N2H_U32(u32)     RT_BE2H_U32(u32)
+
+/** @def RT_N2H_U32_C
+ * Converts an uint32_t constant from network to host byte order. */
+#define RT_N2H_U32_C(u32)   RT_BE2H_U32_C(u32)
+
+/** @def RT_N2H_U16
+ * Converts an uint16_t value from network to host byte order. */
+#define RT_N2H_U16(u16)     RT_BE2H_U16(u16)
+
+/** @def RT_N2H_U16_C
+ * Converts an uint16_t value from network to host byte order. */
+#define RT_N2H_U16_C(u16)   RT_BE2H_U16_C(u16)
+
+
+/*
+ * The BSD sys/param.h + machine/param.h file is a major source of
+ * namespace pollution. Kill off some of the worse ones unless we're
+ * compiling kernel code.
+ */
+#if defined(RT_OS_DARWIN) \
+  && !defined(KERNEL) \
+  && !defined(RT_NO_BSD_PARAM_H_UNDEFING) \
+  && ( defined(_SYS_PARAM_H_) || defined(_I386_PARAM_H_) )
+/* sys/param.h: */
+# undef PSWP
+# undef PVM
+# undef PINOD
+# undef PRIBO
+# undef PVFS
+# undef PZERO
+# undef PSOCK
+# undef PWAIT
+# undef PLOCK
+# undef PPAUSE
+# undef PUSER
+# undef PRIMASK
+# undef MINBUCKET
+# undef MAXALLOCSAVE
+# undef FSHIFT
+# undef FSCALE
+
+/* i386/machine.h: */
+# undef ALIGN
+# undef ALIGNBYTES
+# undef DELAY
+# undef STATUS_WORD
+# undef USERMODE
+# undef BASEPRI
+# undef MSIZE
+# undef CLSIZE
+# undef CLSIZELOG2
+#endif
+
+/** @def NIL_OFFSET
+ * NIL offset.
+ * Whenever we use offsets instead of pointers to save space and relocation effort
+ * NIL_OFFSET shall be used as the equivalent to NULL.
+ */
+#define NIL_OFFSET   (~0U)
+
+
+/** @def NOREF
+ * Keeps the compiler from bitching about an unused parameter, local variable,
+ * or other stuff, will never use _Pragma are is thus more flexible.
+ */
+#define NOREF(var)               (void)(var)
+
+/** @def RT_NOREF_PV
+ * Keeps the compiler from bitching about an unused parameter or local variable.
+ * This one cannot be used with structure members and such, like for instance
+ * AssertRC may end up doing due to its generic nature.
+ */
+#if defined(__cplusplus) && RT_CLANG_PREREQ(6, 0)
+# define RT_NOREF_PV(var)       _Pragma(RT_STR(unused(var)))
+#else
+# define RT_NOREF_PV(var)       (void)(var)
+#endif
+
+/** @def RT_NOREF1
+ * RT_NOREF_PV shorthand taking on parameter. */
+#define RT_NOREF1(var1)                                 RT_NOREF_PV(var1)
+/** @def RT_NOREF2
+ * RT_NOREF_PV shorthand taking two parameters. */
+#define RT_NOREF2(var1, var2)                           RT_NOREF_PV(var1); RT_NOREF1(var2)
+/** @def RT_NOREF3
+ * RT_NOREF_PV shorthand taking three parameters. */
+#define RT_NOREF3(var1, var2, var3)                     RT_NOREF_PV(var1); RT_NOREF2(var2, var3)
+/** @def RT_NOREF4
+ * RT_NOREF_PV shorthand taking four parameters. */
+#define RT_NOREF4(var1, var2, var3, var4)               RT_NOREF_PV(var1); RT_NOREF3(var2, var3, var4)
+/** @def RT_NOREF5
+ * RT_NOREF_PV shorthand taking five parameters. */
+#define RT_NOREF5(var1, var2, var3, var4, var5)         RT_NOREF_PV(var1); RT_NOREF4(var2, var3, var4, var5)
+/** @def RT_NOREF6
+ * RT_NOREF_PV shorthand taking six parameters.  */
+#define RT_NOREF6(var1, var2, var3, var4, var5, var6)   RT_NOREF_PV(var1); RT_NOREF5(var2, var3, var4, var5, var6)
+/** @def RT_NOREF7
+ * RT_NOREF_PV shorthand taking seven parameters.  */
+#define RT_NOREF7(var1, var2, var3, var4, var5, var6, var7) \
+    RT_NOREF_PV(var1); RT_NOREF6(var2, var3, var4, var5, var6, var7)
+/** @def RT_NOREF8
+ * RT_NOREF_PV shorthand taking eight parameters.  */
+#define RT_NOREF8(var1, var2, var3, var4, var5, var6, var7, var8) \
+    RT_NOREF_PV(var1); RT_NOREF7(var2, var3, var4, var5, var6, var7, var8)
+/** @def RT_NOREF9
+ * RT_NOREF_PV shorthand taking nine parameters.  */
+#define RT_NOREF9(var1, var2, var3, var4, var5, var6, var7, var8, var9) \
+    RT_NOREF_PV(var1); RT_NOREF8(var2, var3, var4, var5, var6, var7, var8, var9)
+/** @def RT_NOREF10
+ * RT_NOREF_PV shorthand taking ten parameters.  */
+#define RT_NOREF10(var1, var2, var3, var4, var5, var6, var7, var8, var9, var10) \
+    RT_NOREF_PV(var1); RT_NOREF_PV(var2); RT_NOREF_PV(var3); RT_NOREF_PV(var4); RT_NOREF_PV(var5); RT_NOREF_PV(var6); \
+    RT_NOREF_PV(var7); RT_NOREF_PV(var8); RT_NOREF_PV(var9); RT_NOREF_PV(var10)
+/** @def RT_NOREF11
+ * RT_NOREF_PV shorthand taking eleven parameters.  */
+#define RT_NOREF11(var1, var2, var3, var4, var5, var6, var7, var8, var9, var10, var11) \
+    RT_NOREF_PV(var1); RT_NOREF10(var2, var3, var4, var5, var6, var7, var8, var9, var10, var11)
+/** @def RT_NOREF12
+ * RT_NOREF_PV shorthand taking twelve parameters.  */
+#define RT_NOREF12(var1, var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12) \
+    RT_NOREF_PV(var1); RT_NOREF11(var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12)
+/** @def RT_NOREF13
+ * RT_NOREF_PV shorthand taking thirteen parameters.  */
+#define RT_NOREF13(var1, var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12, var13) \
+    RT_NOREF_PV(var1); RT_NOREF12(var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12, var13)
+/** @def RT_NOREF14
+ * RT_NOREF_PV shorthand taking fourteen parameters.  */
+#define RT_NOREF14(var1, var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12, var13, var14) \
+    RT_NOREF_PV(var1); RT_NOREF13(var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12, var13, var14)
+/** @def RT_NOREF15
+ * RT_NOREF_PV shorthand taking fifteen parameters.  */
+#define RT_NOREF15(var1, var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12, var13, var14, var15) \
+    RT_NOREF_PV(var1); RT_NOREF14(var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12, var13, var14, var15)
+/** @def RT_NOREF16
+ * RT_NOREF_PV shorthand taking fifteen parameters.  */
+#define RT_NOREF16(var1, var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12, var13, var14, var15, var16) \
+    RT_NOREF_PV(var1); RT_NOREF15(var2, var3, var4, var5, var6, var7, var8, var9, var10, var11, var12, var13, var14, var15, var16)
+/** @def RT_NOREF17
+ * RT_NOREF_PV shorthand taking seventeen parameters.  */
+#define RT_NOREF17(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17) \
+    RT_NOREF_PV(v1); RT_NOREF16(v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17)
+/** @def RT_NOREF18
+ * RT_NOREF_PV shorthand taking eighteen parameters.  */
+#define RT_NOREF18(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18) \
+    RT_NOREF_PV(v1); RT_NOREF17(v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18)
+/** @def RT_NOREF19
+ * RT_NOREF_PV shorthand taking nineteen parameters.  */
+#define RT_NOREF19(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19) \
+    RT_NOREF_PV(v1); RT_NOREF18(v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19)
+/** @def RT_NOREF20
+ * RT_NOREF_PV shorthand taking twenty parameters.  */
+#define RT_NOREF20(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20) \
+    RT_NOREF_PV(v1); RT_NOREF19(v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20)
+/** @def RT_NOREF21
+ * RT_NOREF_PV shorthand taking twentyone parameters.  */
+#define RT_NOREF21(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21) \
+    RT_NOREF_PV(v1); RT_NOREF20(v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21)
+/** @def RT_NOREF22
+ * RT_NOREF_PV shorthand taking twentytwo parameters.  */
+#define RT_NOREF22(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22) \
+    RT_NOREF_PV(v1); RT_NOREF21(v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22)
+
+/** @def RT_NOREF
+ * RT_NOREF_PV variant using the variadic macro feature of C99.
+ * @remarks Only use this in sources */
+#ifdef RT_COMPILER_SUPPORTS_VA_ARGS
+# define RT_NOREF(...) \
+    RT_UNPACK_CALL(RT_CONCAT(RT_NOREF, RT_EXPAND(RT_COUNT_VA_ARGS(__VA_ARGS__))),(__VA_ARGS__))
+#endif
+
+
+/** @def RT_BREAKPOINT
+ * Emit a debug breakpoint instruction.
+ *
+ * @remarks In the x86/amd64 gnu world we add a nop instruction after the int3
+ *          to force gdb to remain at the int3 source line.
+ * @remarks The L4 kernel will try make sense of the breakpoint, thus the jmp on
+ *          x86/amd64.
+ */
+#ifdef __GNUC__
+# if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
+#  if !defined(__L4ENV__)
+#   define RT_BREAKPOINT()      __asm__ __volatile__("int $3\n\tnop\n\t")
+#  else
+#   define RT_BREAKPOINT()      __asm__ __volatile__("int3; jmp 1f; 1:\n\t")
+#  endif
+# elif defined(RT_ARCH_SPARC64)
+#  define RT_BREAKPOINT()       __asm__ __volatile__("illtrap 0\n\t")   /** @todo Sparc64: this is just a wild guess. */
+# elif defined(RT_ARCH_SPARC)
+#  define RT_BREAKPOINT()       __asm__ __volatile__("unimp 0\n\t")     /** @todo Sparc: this is just a wild guess (same as Sparc64, just different name). */
+# endif
+#endif
+#ifdef _MSC_VER
+# define RT_BREAKPOINT()        __debugbreak()
+#endif
+#if defined(__IBMC__) || defined(__IBMCPP__)
+# define RT_BREAKPOINT()        __interrupt(3)
+#endif
+#if defined(__WATCOMC__)
+# define RT_BREAKPOINT()        _asm { int 3 }
+#endif
+#ifndef RT_BREAKPOINT
+# error "This compiler/arch is not supported!"
+#endif
+
+
+/** @defgroup grp_rt_cdefs_size     Size Constants
+ * (Of course, these are binary computer terms, not SI.)
+ * @{
+ */
+/** 1 K (Kilo)                     (1 024). */
+#define _1K                     0x00000400
+/** 2 K (Kilo)                     (2 048). */
+#define _2K                     0x00000800
+/** 4 K (Kilo)                     (4 096). */
+#define _4K                     0x00001000
+/** 8 K (Kilo)                     (8 192). */
+#define _8K                     0x00002000
+/** 16 K (Kilo)                   (16 384). */
+#define _16K                    0x00004000
+/** 32 K (Kilo)                   (32 768). */
+#define _32K                    0x00008000
+/** 64 K (Kilo)                   (65 536). */
+#if ARCH_BITS != 16
+# define _64K                   0x00010000
+#else
+# define _64K           UINT32_C(0x00010000)
+#endif
+/** 128 K (Kilo)                 (131 072). */
+#if ARCH_BITS != 16
+# define _128K                   0x00020000
+#else
+# define _128K          UINT32_C(0x00020000)
+#endif
+/** 256 K (Kilo)                 (262 144). */
+#if ARCH_BITS != 16
+# define _256K                   0x00040000
+#else
+# define _256K          UINT32_C(0x00040000)
+#endif
+/** 512 K (Kilo)                 (524 288). */
+#if ARCH_BITS != 16
+# define _512K                   0x00080000
+#else
+# define _512K          UINT32_C(0x00080000)
+#endif
+/** 1 M (Mega)                 (1 048 576). */
+#if ARCH_BITS != 16
+# define _1M                     0x00100000
+#else
+# define _1M            UINT32_C(0x00100000)
+#endif
+/** 2 M (Mega)                 (2 097 152). */
+#if ARCH_BITS != 16
+# define _2M                     0x00200000
+#else
+# define _2M            UINT32_C(0x00200000)
+#endif
+/** 4 M (Mega)                 (4 194 304). */
+#if ARCH_BITS != 16
+# define _4M                     0x00400000
+#else
+# define _4M            UINT32_C(0x00400000)
+#endif
+/** 8 M (Mega)                 (8 388 608). */
+#define _8M             UINT32_C(0x00800000)
+/** 16 M (Mega)               (16 777 216). */
+#define _16M            UINT32_C(0x01000000)
+/** 32 M (Mega)               (33 554 432). */
+#define _32M            UINT32_C(0x02000000)
+/** 64 M (Mega)               (67 108 864). */
+#define _64M            UINT32_C(0x04000000)
+/** 128 M (Mega)             (134 217 728). */
+#define _128M           UINT32_C(0x08000000)
+/** 256 M (Mega)             (268 435 456). */
+#define _256M           UINT32_C(0x10000000)
+/** 512 M (Mega)             (536 870 912). */
+#define _512M           UINT32_C(0x20000000)
+/** 1 G (Giga)             (1 073 741 824). (32-bit) */
+#if ARCH_BITS != 16
+# define _1G                     0x40000000
+#else
+# define _1G            UINT32_C(0x40000000)
+#endif
+/** 1 G (Giga)             (1 073 741 824). (64-bit) */
+#if ARCH_BITS != 16
+# define _1G64                   0x40000000LL
+#else
+# define _1G64          UINT64_C(0x40000000)
+#endif
+/** 2 G (Giga)             (2 147 483 648). (32-bit) */
+#define _2G32           UINT32_C(0x80000000)
+/** 2 G (Giga)             (2 147 483 648). (64-bit) */
+#if ARCH_BITS != 16
+# define _2G             0x0000000080000000LL
+#else
+# define _2G    UINT64_C(0x0000000080000000)
+#endif
+/** 4 G (Giga)             (4 294 967 296). */
+#if ARCH_BITS != 16
+# define _4G             0x0000000100000000LL
+#else
+# define _4G    UINT64_C(0x0000000100000000)
+#endif
+/** 1 T (Tera)         (1 099 511 627 776). */
+#if ARCH_BITS != 16
+# define _1T             0x0000010000000000LL
+#else
+# define _1T    UINT64_C(0x0000010000000000)
+#endif
+/** 1 P (Peta)     (1 125 899 906 842 624). */
+#if ARCH_BITS != 16
+# define _1P             0x0004000000000000LL
+#else
+# define _1P    UINT64_C(0x0004000000000000)
+#endif
+/** 1 E (Exa)  (1 152 921 504 606 846 976). */
+#if ARCH_BITS != 16
+# define _1E             0x1000000000000000LL
+#else
+# define _1E    UINT64_C(0x1000000000000000)
+#endif
+/** 2 E (Exa)  (2 305 843 009 213 693 952). */
+#if ARCH_BITS != 16
+# define _2E             0x2000000000000000ULL
+#else
+# define _2E    UINT64_C(0x2000000000000000)
+#endif
+/** @} */
+
+/** @defgroup grp_rt_cdefs_decimal_grouping   Decimal Constant Grouping Macros
+ * @{ */
+#define RT_D1(g1)                                   g1
+#define RT_D2(g1, g2)                               g1#g2
+#define RT_D3(g1, g2, g3)                           g1#g2#g3
+#define RT_D4(g1, g2, g3, g4)                       g1#g2#g3#g4
+#define RT_D5(g1, g2, g3, g4, g5)                   g1#g2#g3#g4#g5
+#define RT_D6(g1, g2, g3, g4, g5, g6)               g1#g2#g3#g4#g5#g6
+#define RT_D7(g1, g2, g3, g4, g5, g6, g7)           g1#g2#g3#g4#g5#g6#g7
+
+#define RT_D1_U(g1)                                 UINT32_C(g1)
+#define RT_D2_U(g1, g2)                             UINT32_C(g1#g2)
+#define RT_D3_U(g1, g2, g3)                         UINT32_C(g1#g2#g3)
+#define RT_D4_U(g1, g2, g3, g4)                     UINT64_C(g1#g2#g3#g4)
+#define RT_D5_U(g1, g2, g3, g4, g5)                 UINT64_C(g1#g2#g3#g4#g5)
+#define RT_D6_U(g1, g2, g3, g4, g5, g6)             UINT64_C(g1#g2#g3#g4#g5#g6)
+#define RT_D7_U(g1, g2, g3, g4, g5, g6, g7)         UINT64_C(g1#g2#g3#g4#g5#g6#g7)
+
+#define RT_D1_S(g1)                                 INT32_C(g1)
+#define RT_D2_S(g1, g2)                             INT32_C(g1#g2)
+#define RT_D3_S(g1, g2, g3)                         INT32_C(g1#g2#g3)
+#define RT_D4_S(g1, g2, g3, g4)                     INT64_C(g1#g2#g3#g4)
+#define RT_D5_S(g1, g2, g3, g4, g5)                 INT64_C(g1#g2#g3#g4#g5)
+#define RT_D6_S(g1, g2, g3, g4, g5, g6)             INT64_C(g1#g2#g3#g4#g5#g6)
+#define RT_D7_S(g1, g2, g3, g4, g5, g6, g7)         INT64_C(g1#g2#g3#g4#g5#g6#g7)
+
+#define RT_D1_U32(g1)                               UINT32_C(g1)
+#define RT_D2_U32(g1, g2)                           UINT32_C(g1#g2)
+#define RT_D3_U32(g1, g2, g3)                       UINT32_C(g1#g2#g3)
+#define RT_D4_U32(g1, g2, g3, g4)                   UINT32_C(g1#g2#g3#g4)
+
+#define RT_D1_S32(g1)                               INT32_C(g1)
+#define RT_D2_S32(g1, g2)                           INT32_C(g1#g2)
+#define RT_D3_S32(g1, g2, g3)                       INT32_C(g1#g2#g3)
+#define RT_D4_S32(g1, g2, g3, g4)                   INT32_C(g1#g2#g3#g4)
+
+#define RT_D1_U64(g1)                               UINT64_C(g1)
+#define RT_D2_U64(g1, g2)                           UINT64_C(g1#g2)
+#define RT_D3_U64(g1, g2, g3)                       UINT64_C(g1#g2#g3)
+#define RT_D4_U64(g1, g2, g3, g4)                   UINT64_C(g1#g2#g3#g4)
+#define RT_D5_U64(g1, g2, g3, g4, g5)               UINT64_C(g1#g2#g3#g4#g5)
+#define RT_D6_U64(g1, g2, g3, g4, g5, g6)           UINT64_C(g1#g2#g3#g4#g5#g6)
+#define RT_D7_U64(g1, g2, g3, g4, g5, g6, g7)       UINT64_C(g1#g2#g3#g4#g5#g6#g7)
+
+#define RT_D1_S64(g1)                               INT64_C(g1)
+#define RT_D2_S64(g1, g2)                           INT64_C(g1#g2)
+#define RT_D3_S64(g1, g2, g3)                       INT64_C(g1#g2#g3)
+#define RT_D4_S64(g1, g2, g3, g4)                   INT64_C(g1#g2#g3#g4)
+#define RT_D5_S64(g1, g2, g3, g4, g5)               INT64_C(g1#g2#g3#g4#g5)
+#define RT_D6_S64(g1, g2, g3, g4, g5, g6)           INT64_C(g1#g2#g3#g4#g5#g6)
+#define RT_D7_S64(g1, g2, g3, g4, g5, g6, g7)       INT64_C(g1#g2#g3#g4#g5#g6#g7)
+/** @}  */
+
+
+/** @defgroup grp_rt_cdefs_time     Time Constants
+ * @{
+ */
+/** 1 hour expressed in nanoseconds (64-bit). */
+#define RT_NS_1HOUR             UINT64_C(3600000000000)
+/** 30 minutes expressed in nanoseconds (64-bit). */
+#define RT_NS_30MIN             UINT64_C(1800000000000)
+/** 5 minutes expressed in nanoseconds (64-bit). */
+#define RT_NS_5MIN              UINT64_C(300000000000)
+/** 1 minute expressed in nanoseconds (64-bit). */
+#define RT_NS_1MIN              UINT64_C(60000000000)
+/** 45 seconds expressed in nanoseconds (64-bit). */
+#define RT_NS_45SEC             UINT64_C(45000000000)
+/** 30 seconds expressed in nanoseconds (64-bit). */
+#define RT_NS_30SEC             UINT64_C(30000000000)
+/** 20 seconds expressed in nanoseconds (64-bit). */
+#define RT_NS_20SEC             UINT64_C(20000000000)
+/** 15 seconds expressed in nanoseconds (64-bit). */
+#define RT_NS_15SEC             UINT64_C(15000000000)
+/** 10 seconds expressed in nanoseconds (64-bit). */
+#define RT_NS_10SEC             UINT64_C(10000000000)
+/** 1 second expressed in nanoseconds. */
+#define RT_NS_1SEC              UINT32_C(1000000000)
+/** 100 millsecond expressed in nanoseconds. */
+#define RT_NS_100MS             UINT32_C(100000000)
+/** 10 millsecond expressed in nanoseconds. */
+#define RT_NS_10MS              UINT32_C(10000000)
+/** 8 millsecond expressed in nanoseconds. */
+#define RT_NS_8MS               UINT32_C(8000000)
+/** 2 millsecond expressed in nanoseconds. */
+#define RT_NS_2MS               UINT32_C(2000000)
+/** 1 millsecond expressed in nanoseconds. */
+#define RT_NS_1MS               UINT32_C(1000000)
+/** 100 microseconds expressed in nanoseconds. */
+#define RT_NS_100US             UINT32_C(100000)
+/** 10 microseconds expressed in nanoseconds. */
+#define RT_NS_10US              UINT32_C(10000)
+/** 1 microsecond expressed in nanoseconds. */
+#define RT_NS_1US               UINT32_C(1000)
+
+/** 1 second expressed in nanoseconds - 64-bit type. */
+#define RT_NS_1SEC_64           UINT64_C(1000000000)
+/** 100 millsecond expressed in nanoseconds - 64-bit type. */
+#define RT_NS_100MS_64          UINT64_C(100000000)
+/** 10 millsecond expressed in nanoseconds - 64-bit type. */
+#define RT_NS_10MS_64           UINT64_C(10000000)
+/** 1 millsecond expressed in nanoseconds - 64-bit type. */
+#define RT_NS_1MS_64            UINT64_C(1000000)
+/** 100 microseconds expressed in nanoseconds - 64-bit type. */
+#define RT_NS_100US_64          UINT64_C(100000)
+/** 10 microseconds expressed in nanoseconds - 64-bit type. */
+#define RT_NS_10US_64           UINT64_C(10000)
+/** 1 microsecond expressed in nanoseconds - 64-bit type. */
+#define RT_NS_1US_64            UINT64_C(1000)
+
+/** 1 hour expressed in microseconds. */
+#define RT_US_1HOUR             UINT32_C(3600000000)
+/** 30 minutes expressed in microseconds. */
+#define RT_US_30MIN             UINT32_C(1800000000)
+/** 5 minutes expressed in microseconds. */
+#define RT_US_5MIN              UINT32_C(300000000)
+/** 1 minute expressed in microseconds. */
+#define RT_US_1MIN              UINT32_C(60000000)
+/** 45 seconds expressed in microseconds. */
+#define RT_US_45SEC             UINT32_C(45000000)
+/** 30 seconds expressed in microseconds. */
+#define RT_US_30SEC             UINT32_C(30000000)
+/** 20 seconds expressed in microseconds. */
+#define RT_US_20SEC             UINT32_C(20000000)
+/** 15 seconds expressed in microseconds. */
+#define RT_US_15SEC             UINT32_C(15000000)
+/** 10 seconds expressed in microseconds. */
+#define RT_US_10SEC             UINT32_C(10000000)
+/** 5 seconds expressed in microseconds. */
+#define RT_US_5SEC              UINT32_C(5000000)
+/** 1 second expressed in microseconds. */
+#define RT_US_1SEC              UINT32_C(1000000)
+/** 100 millsecond expressed in microseconds. */
+#define RT_US_100MS             UINT32_C(100000)
+/** 10 millsecond expressed in microseconds. */
+#define RT_US_10MS              UINT32_C(10000)
+/** 1 millsecond expressed in microseconds. */
+#define RT_US_1MS               UINT32_C(1000)
+
+/** 1 hour expressed in microseconds - 64-bit type. */
+#define RT_US_1HOUR_64          UINT64_C(3600000000)
+/** 30 minutes expressed in microseconds - 64-bit type. */
+#define RT_US_30MIN_64          UINT64_C(1800000000)
+/** 5 minutes expressed in microseconds - 64-bit type. */
+#define RT_US_5MIN_64           UINT64_C(300000000)
+/** 1 minute expressed in microseconds - 64-bit type. */
+#define RT_US_1MIN_64           UINT64_C(60000000)
+/** 45 seconds expressed in microseconds - 64-bit type. */
+#define RT_US_45SEC_64          UINT64_C(45000000)
+/** 30 seconds expressed in microseconds - 64-bit type. */
+#define RT_US_30SEC_64          UINT64_C(30000000)
+/** 20 seconds expressed in microseconds - 64-bit type. */
+#define RT_US_20SEC_64          UINT64_C(20000000)
+/** 15 seconds expressed in microseconds - 64-bit type. */
+#define RT_US_15SEC_64          UINT64_C(15000000)
+/** 10 seconds expressed in microseconds - 64-bit type. */
+#define RT_US_10SEC_64          UINT64_C(10000000)
+/** 5 seconds expressed in microseconds - 64-bit type. */
+#define RT_US_5SEC_64           UINT64_C(5000000)
+/** 1 second expressed in microseconds - 64-bit type. */
+#define RT_US_1SEC_64           UINT64_C(1000000)
+/** 100 millsecond expressed in microseconds - 64-bit type. */
+#define RT_US_100MS_64          UINT64_C(100000)
+/** 10 millsecond expressed in microseconds - 64-bit type. */
+#define RT_US_10MS_64           UINT64_C(10000)
+/** 1 millsecond expressed in microseconds - 64-bit type. */
+#define RT_US_1MS_64            UINT64_C(1000)
+
+/** 1 hour expressed in milliseconds. */
+#define RT_MS_1HOUR             UINT32_C(3600000)
+/** 30 minutes expressed in milliseconds. */
+#define RT_MS_30MIN             UINT32_C(1800000)
+/** 5 minutes expressed in milliseconds. */
+#define RT_MS_5MIN              UINT32_C(300000)
+/** 1 minute expressed in milliseconds. */
+#define RT_MS_1MIN              UINT32_C(60000)
+/** 45 seconds expressed in milliseconds. */
+#define RT_MS_45SEC             UINT32_C(45000)
+/** 30 seconds expressed in milliseconds. */
+#define RT_MS_30SEC             UINT32_C(30000)
+/** 20 seconds expressed in milliseconds. */
+#define RT_MS_20SEC             UINT32_C(20000)
+/** 15 seconds expressed in milliseconds. */
+#define RT_MS_15SEC             UINT32_C(15000)
+/** 10 seconds expressed in milliseconds. */
+#define RT_MS_10SEC             UINT32_C(10000)
+/** 5 seconds expressed in milliseconds. */
+#define RT_MS_5SEC              UINT32_C(5000)
+/** 1 second expressed in milliseconds. */
+#define RT_MS_1SEC              UINT32_C(1000)
+
+/** 1 hour expressed in milliseconds - 64-bit type. */
+#define RT_MS_1HOUR_64          UINT64_C(3600000)
+/** 30 minutes expressed in milliseconds - 64-bit type. */
+#define RT_MS_30MIN_64          UINT64_C(1800000)
+/** 5 minutes expressed in milliseconds - 64-bit type. */
+#define RT_MS_5MIN_64           UINT64_C(300000)
+/** 1 minute expressed in milliseconds - 64-bit type. */
+#define RT_MS_1MIN_64           UINT64_C(60000)
+/** 45 seconds expressed in milliseconds - 64-bit type. */
+#define RT_MS_45SEC_64          UINT64_C(45000)
+/** 30 seconds expressed in milliseconds - 64-bit type. */
+#define RT_MS_30SEC_64          UINT64_C(30000)
+/** 20 seconds expressed in milliseconds - 64-bit type. */
+#define RT_MS_20SEC_64          UINT64_C(20000)
+/** 15 seconds expressed in milliseconds - 64-bit type. */
+#define RT_MS_15SEC_64          UINT64_C(15000)
+/** 10 seconds expressed in milliseconds - 64-bit type. */
+#define RT_MS_10SEC_64          UINT64_C(10000)
+/** 5 seconds expressed in milliseconds - 64-bit type. */
+#define RT_MS_5SEC_64           UINT64_C(5000)
+/** 1 second expressed in milliseconds - 64-bit type. */
+#define RT_MS_1SEC_64           UINT64_C(1000)
+
+/** The number of seconds per week. */
+#define RT_SEC_1WEEK            UINT32_C(604800)
+/** The number of seconds per day. */
+#define RT_SEC_1DAY             UINT32_C(86400)
+/** The number of seconds per hour. */
+#define RT_SEC_1HOUR            UINT32_C(3600)
+
+/** The number of seconds per week - 64-bit type. */
+#define RT_SEC_1WEEK_64         UINT64_C(604800)
+/** The number of seconds per day - 64-bit type. */
+#define RT_SEC_1DAY_64          UINT64_C(86400)
+/** The number of seconds per hour - 64-bit type. */
+#define RT_SEC_1HOUR_64         UINT64_C(3600)
+/** @}  */
+
+
+/** @defgroup grp_rt_cdefs_dbgtype  Debug Info Types
+ * @{ */
+/** Other format. */
+#define RT_DBGTYPE_OTHER        RT_BIT_32(0)
+/** Stabs. */
+#define RT_DBGTYPE_STABS        RT_BIT_32(1)
+/** Debug With Arbitrary Record Format (DWARF). */
+#define RT_DBGTYPE_DWARF        RT_BIT_32(2)
+/** Microsoft Codeview debug info. */
+#define RT_DBGTYPE_CODEVIEW     RT_BIT_32(3)
+/** Watcom debug info. */
+#define RT_DBGTYPE_WATCOM       RT_BIT_32(4)
+/** IBM High Level Language debug info. */
+#define RT_DBGTYPE_HLL          RT_BIT_32(5)
+/** Old OS/2 and Windows symbol file. */
+#define RT_DBGTYPE_SYM          RT_BIT_32(6)
+/** Map file. */
+#define RT_DBGTYPE_MAP          RT_BIT_32(7)
+/** @} */
+
+
+/** @defgroup grp_rt_cdefs_exetype  Executable Image Types
+ * @{ */
+/** Some other format. */
+#define RT_EXETYPE_OTHER        RT_BIT_32(0)
+/** Portable Executable. */
+#define RT_EXETYPE_PE           RT_BIT_32(1)
+/** Linear eXecutable. */
+#define RT_EXETYPE_LX           RT_BIT_32(2)
+/** Linear Executable. */
+#define RT_EXETYPE_LE           RT_BIT_32(3)
+/** New Executable. */
+#define RT_EXETYPE_NE           RT_BIT_32(4)
+/** DOS Executable (Mark Zbikowski). */
+#define RT_EXETYPE_MZ           RT_BIT_32(5)
+/** COM Executable. */
+#define RT_EXETYPE_COM          RT_BIT_32(6)
+/** a.out Executable. */
+#define RT_EXETYPE_AOUT         RT_BIT_32(7)
+/** Executable and Linkable Format. */
+#define RT_EXETYPE_ELF          RT_BIT_32(8)
+/** Mach-O Executable (including FAT ones). */
+#define RT_EXETYPE_MACHO        RT_BIT_32(9)
+/** TE from UEFI. */
+#define RT_EXETYPE_TE           RT_BIT_32(9)
+/** @} */
+
+
+/** @def VALID_PTR
+ * Pointer validation macro.
+ * @param   ptr         The pointer.
+ */
+#if defined(RT_ARCH_AMD64)
+# ifdef IN_RING3
+#  if defined(RT_OS_DARWIN) /* first 4GB is reserved for legacy kernel. */
+#   define RT_VALID_PTR(ptr)    (   (uintptr_t)(ptr) >= _4G \
+                                 && !((uintptr_t)(ptr) & 0xffff800000000000ULL) )
+#  elif defined(RT_OS_SOLARIS) /* The kernel only used the top 2TB, but keep it simple. */
+#   define RT_VALID_PTR(ptr)    (   (uintptr_t)(ptr) + 0x1000U >= 0x2000U \
+                                 && (   ((uintptr_t)(ptr) & 0xffff800000000000ULL) == 0xffff800000000000ULL \
+                                     || ((uintptr_t)(ptr) & 0xffff800000000000ULL) == 0) )
+#  else
+#   define RT_VALID_PTR(ptr)    (   (uintptr_t)(ptr) + 0x1000U >= 0x2000U \
+                                 && !((uintptr_t)(ptr) & 0xffff800000000000ULL) )
+#  endif
+# else /* !IN_RING3 */
+#  define RT_VALID_PTR(ptr)     (   (uintptr_t)(ptr) + 0x1000U >= 0x2000U \
+                                 && (   ((uintptr_t)(ptr) & 0xffff800000000000ULL) == 0xffff800000000000ULL \
+                                     || ((uintptr_t)(ptr) & 0xffff800000000000ULL) == 0) )
+# endif /* !IN_RING3 */
+
+#elif defined(RT_ARCH_X86)
+# define RT_VALID_PTR(ptr)      ( (uintptr_t)(ptr) + 0x1000U >= 0x2000U )
+
+#elif defined(RT_ARCH_SPARC64)
+# ifdef IN_RING3
+#  if defined(RT_OS_SOLARIS)
+/** Sparc64 user mode: According to Figure 9.4 in solaris internals */
+/** @todo #   define RT_VALID_PTR(ptr)    ( (uintptr_t)(ptr) + 0x80004000U >= 0x80004000U + 0x100000000ULL ) - figure this. */
+#   define RT_VALID_PTR(ptr)    ( (uintptr_t)(ptr) + 0x80000000U >= 0x80000000U + 0x100000000ULL )
+#  else
+#   error "Port me"
+#  endif
+# else  /* !IN_RING3 */
+#  if defined(RT_OS_SOLARIS)
+/** @todo Sparc64 kernel mode: This is according to Figure 11.1 in solaris
+ *        internals. Verify in sources. */
+#   define RT_VALID_PTR(ptr)    ( (uintptr_t)(ptr) >= 0x01000000U )
+#  else
+#   error "Port me"
+#  endif
+# endif /* !IN_RING3 */
+
+#elif defined(RT_ARCH_SPARC)
+# ifdef IN_RING3
+#  ifdef RT_OS_SOLARIS
+/** Sparc user mode: According to
+ * http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/sun4/os/startup.c#510 */
+#   define RT_VALID_PTR(ptr)    ( (uintptr_t)(ptr) + 0x400000U >= 0x400000U + 0x2000U )
+
+#  else
+#   error "Port me"
+#  endif
+# else  /* !IN_RING3 */
+#  ifdef RT_OS_SOLARIS
+/** @todo Sparc kernel mode: Check the sources! */
+#   define RT_VALID_PTR(ptr)    ( (uintptr_t)(ptr) + 0x1000U >= 0x2000U )
+#  else
+#   error "Port me"
+#  endif
+# endif /* !IN_RING3 */
+
+#elif defined(RT_ARCH_ARM)
+/* ASSUMES that at least the last and first 4K are out of bounds. */
+# define RT_VALID_PTR(ptr)      ( (uintptr_t)(ptr) + 0x1000U >= 0x2000U )
+
+#else
+# error "Architecture identifier missing / not implemented."
+#endif
+
+/** Old name for RT_VALID_PTR.  */
+#define VALID_PTR(ptr)          RT_VALID_PTR(ptr)
+
+/** @def RT_VALID_ALIGNED_PTR
+ * Pointer validation macro that also checks the alignment.
+ * @param   ptr         The pointer.
+ * @param   align       The alignment, must be a power of two.
+ */
+#define RT_VALID_ALIGNED_PTR(ptr, align)   \
+    (   !((uintptr_t)(ptr) & (uintptr_t)((align) - 1)) \
+     && VALID_PTR(ptr) )
+
+
+/** @def VALID_PHYS32
+ * 32 bits physical address validation macro.
+ * @param   Phys          The RTGCPHYS address.
+ */
+#define VALID_PHYS32(Phys)  ( (uint64_t)(Phys) < (uint64_t)_4G )
+
+/** @def N_
+ * The \#define N_ is used to mark a string for translation. This is usable in
+ * any part of the code, as it is only used by the tools that create message
+ * catalogs. This macro is a no-op as far as the compiler and code generation
+ * is concerned.
+ *
+ * If you want to both mark a string for translation and translate it, use _().
+ */
+#define N_(s) (s)
+
+/** @def _
+ * The \#define _ is used to mark a string for translation and to translate it
+ * in one step.
+ *
+ * If you want to only mark a string for translation, use N_().
+ */
+#define _(s) gettext(s)
+
+
+#if (!defined(__GNUC__) && !defined(__PRETTY_FUNCTION__)) || defined(DOXYGEN_RUNNING)
+# if defined(_MSC_VER) || defined(DOXYGEN_RUNNING)
+/** With GNU C we'd like to use the builtin __PRETTY_FUNCTION__, so define that
+ * for the other compilers. */
+#  define __PRETTY_FUNCTION__    __FUNCSIG__
+# else
+#  define __PRETTY_FUNCTION__    __FUNCTION__
+# endif
+#endif
+
+
+/** @def RT_STRICT
+ * The \#define RT_STRICT controls whether or not assertions and other runtime
+ * checks should be compiled in or not.  This is defined when DEBUG is defined.
+ * If RT_NO_STRICT is defined, it will unconditionally be undefined.
+ *
+ * If you want assertions which are not subject to compile time options use
+ * the AssertRelease*() flavors.
+ */
+#if !defined(RT_STRICT) && defined(DEBUG)
+# define RT_STRICT
+#endif
+#ifdef RT_NO_STRICT
+# undef RT_STRICT
+#endif
+
+/** @todo remove this: */
+#if !defined(RT_LOCK_STRICT) && !defined(DEBUG_bird)
+# define RT_LOCK_NO_STRICT
+#endif
+#if !defined(RT_LOCK_STRICT_ORDER) && !defined(DEBUG_bird)
+# define RT_LOCK_NO_STRICT_ORDER
+#endif
+
+/** @def RT_LOCK_STRICT
+ * The \#define RT_LOCK_STRICT controls whether deadlock detection and related
+ * checks are done in the lock and semaphore code.  It is by default enabled in
+ * RT_STRICT builds, but this behavior can be overridden by defining
+ * RT_LOCK_NO_STRICT. */
+#if !defined(RT_LOCK_STRICT) && !defined(RT_LOCK_NO_STRICT) && defined(RT_STRICT)
+# define RT_LOCK_STRICT
+#endif
+/** @def RT_LOCK_NO_STRICT
+ * The \#define RT_LOCK_NO_STRICT disables RT_LOCK_STRICT.  */
+#if defined(RT_LOCK_NO_STRICT) && defined(RT_LOCK_STRICT)
+# undef RT_LOCK_STRICT
+#endif
+
+/** @def RT_LOCK_STRICT_ORDER
+ * The \#define RT_LOCK_STRICT_ORDER controls whether locking order is checked
+ * by the lock and semaphore code.  It is by default enabled in RT_STRICT
+ * builds, but this behavior can be overridden by defining
+ * RT_LOCK_NO_STRICT_ORDER. */
+#if !defined(RT_LOCK_STRICT_ORDER) && !defined(RT_LOCK_NO_STRICT_ORDER) && defined(RT_STRICT)
+# define RT_LOCK_STRICT_ORDER
+#endif
+/** @def RT_LOCK_NO_STRICT_ORDER
+ * The \#define RT_LOCK_NO_STRICT_ORDER disables RT_LOCK_STRICT_ORDER.  */
+#if defined(RT_LOCK_NO_STRICT_ORDER) && defined(RT_LOCK_STRICT_ORDER)
+# undef RT_LOCK_STRICT_ORDER
+#endif
+
+
+/** Source position. */
+#define RT_SRC_POS         __FILE__, __LINE__, RT_GCC_EXTENSION __PRETTY_FUNCTION__
+
+/** Source position declaration. */
+#define RT_SRC_POS_DECL    const char *pszFile, unsigned iLine, const char *pszFunction
+
+/** Source position arguments. */
+#define RT_SRC_POS_ARGS    pszFile, iLine, pszFunction
+
+/** Applies NOREF() to the source position arguments. */
+#define RT_SRC_POS_NOREF() do { NOREF(pszFile); NOREF(iLine); NOREF(pszFunction); } while (0)
+
+
+/** @def RT_INLINE_ASM_EXTERNAL
+ * Defined as 1 if the compiler does not support inline assembly.
+ * The ASM* functions will then be implemented in external .asm files.
+ */
+#if (defined(_MSC_VER) && defined(RT_ARCH_AMD64)) \
+ || (!defined(RT_ARCH_AMD64) && !defined(RT_ARCH_X86)) \
+ || defined(__WATCOMC__)
+# define RT_INLINE_ASM_EXTERNAL 1
+#else
+# define RT_INLINE_ASM_EXTERNAL 0
+#endif
+
+/** @def RT_INLINE_ASM_GNU_STYLE
+ * Defined as 1 if the compiler understands GNU style inline assembly.
+ */
+#if defined(_MSC_VER) || defined(__WATCOMC__)
+# define RT_INLINE_ASM_GNU_STYLE 0
+#else
+# define RT_INLINE_ASM_GNU_STYLE 1
+#endif
+
+/** @def RT_INLINE_ASM_USES_INTRIN
+ * Defined as the major MSC version if the compiler have and uses intrin.h.
+ * Otherwise it is 0. */
+#ifdef _MSC_VER
+# if   _MSC_VER >= 1700 /* Visual C++ v11.0 / 2012 */
+#  define RT_INLINE_ASM_USES_INTRIN 17
+# elif _MSC_VER >= 1600 /* Visual C++ v10.0 / 2010 */
+#  define RT_INLINE_ASM_USES_INTRIN 16
+# elif _MSC_VER >= 1500 /* Visual C++ v9.0 / 2008 */
+#  define RT_INLINE_ASM_USES_INTRIN 15
+# elif _MSC_VER >= 1400 /* Visual C++ v8.0 / 2005 */
+#  define RT_INLINE_ASM_USES_INTRIN 14
+# endif
+#endif
+#ifndef RT_INLINE_ASM_USES_INTRIN
+# define RT_INLINE_ASM_USES_INTRIN 0
+#endif
+
+/** @def RT_COMPILER_SUPPORTS_LAMBDA
+ * If the defined, the compiler supports lambda expressions.   These expressions
+ * are useful for embedding assertions and type checks into macros. */
+#if defined(_MSC_VER) && defined(__cplusplus)
+# if _MSC_VER >= 1600 /* Visual C++ v10.0 / 2010 */
+#  define RT_COMPILER_SUPPORTS_LAMBDA
+# endif
+#elif defined(__GNUC__) && defined(__cplusplus)
+/* 4.5 or later, I think, if in ++11 mode... */
+#endif
+
+/** @def RT_DATA_IS_FAR
+ * Set to 1 if we're in 16-bit mode and use far pointers.
+ */
+#if ARCH_BITS == 16 && defined(__WATCOMC__) \
+  && (defined(__COMPACT__) || defined(__LARGE__))
+# define RT_DATA_IS_FAR 1
+#else
+# define RT_DATA_IS_FAR 0
+#endif
+
+/** @def RT_FAR
+ * For indicating far pointers in 16-bit code.
+ * Does nothing in 32-bit and 64-bit code. */
+/** @def RT_NEAR
+ * For indicating near pointers in 16-bit code.
+ * Does nothing in 32-bit and 64-bit code. */
+/** @def RT_FAR_CODE
+ * For indicating far 16-bit functions.
+ * Does nothing in 32-bit and 64-bit code. */
+/** @def RT_NEAR_CODE
+ * For indicating near 16-bit functions.
+ * Does nothing in 32-bit and 64-bit code. */
+/** @def RT_FAR_DATA
+ * For indicating far 16-bit external data, i.e. in a segment other than DATA16.
+ * Does nothing in 32-bit and 64-bit code. */
+#if ARCH_BITS == 16
+# define RT_FAR            __far
+# define RT_NEAR           __near
+# define RT_FAR_CODE       __far
+# define RT_NEAR_CODE      __near
+# define RT_FAR_DATA       __far
+#else
+# define RT_FAR
+# define RT_NEAR
+# define RT_FAR_CODE
+# define RT_NEAR_CODE
+# define RT_FAR_DATA
+#endif
+
+
+/** @} */
+
+
+/** @defgroup grp_rt_cdefs_cpp  Special Macros for C++
+ * @ingroup grp_rt_cdefs
+ * @{
+ */
+
+#ifdef __cplusplus
+
+/** @def DECLEXPORT_CLASS
+ * How to declare an exported class. Place this macro after the 'class'
+ * keyword in the declaration of every class you want to export.
+ *
+ * @note It is necessary to use this macro even for inner classes declared
+ * inside the already exported classes. This is a GCC specific requirement,
+ * but it seems not to harm other compilers.
+ */
+#if defined(_MSC_VER) || defined(RT_OS_OS2)
+# define DECLEXPORT_CLASS       __declspec(dllexport)
+#elif defined(RT_USE_VISIBILITY_DEFAULT)
+# define DECLEXPORT_CLASS       __attribute__((visibility("default")))
+#else
+# define DECLEXPORT_CLASS
+#endif
+
+/** @def DECLIMPORT_CLASS
+ * How to declare an imported class Place this macro after the 'class'
+ * keyword in the declaration of every class you want to export.
+ *
+ * @note It is necessary to use this macro even for inner classes declared
+ * inside the already exported classes. This is a GCC specific requirement,
+ * but it seems not to harm other compilers.
+ */
+#if defined(_MSC_VER) || (defined(RT_OS_OS2) && !defined(__IBMC__) && !defined(__IBMCPP__))
+# define DECLIMPORT_CLASS       __declspec(dllimport)
+#elif defined(RT_USE_VISIBILITY_DEFAULT)
+# define DECLIMPORT_CLASS       __attribute__((visibility("default")))
+#else
+# define DECLIMPORT_CLASS
+#endif
+
+/** @def WORKAROUND_MSVC7_ERROR_C2593_FOR_BOOL_OP
+ * Macro to work around error C2593 of the not-so-smart MSVC 7.x ambiguity
+ * resolver. The following snippet clearly demonstrates the code causing this
+ * error:
+ * @code
+ *      class A
+ *      {
+ *      public:
+ *          operator bool() const { return false; }
+ *          operator int*() const { return NULL; }
+ *      };
+ *      int main()
+ *      {
+ *          A a;
+ *          if (!a);
+ *          if (a && 0);
+ *          return 0;
+ *      }
+ * @endcode
+ * The code itself seems pretty valid to me and GCC thinks the same.
+ *
+ * This macro fixes the compiler error by explicitly overloading implicit
+ * global operators !, && and || that take the given class instance as one of
+ * their arguments.
+ *
+ * The best is to use this macro right after the class declaration.
+ *
+ * @note The macro expands to nothing for compilers other than MSVC.
+ *
+ * @param Cls Class to apply the workaround to
+ */
+#if defined(_MSC_VER)
+# define WORKAROUND_MSVC7_ERROR_C2593_FOR_BOOL_OP(Cls) \
+    inline bool operator! (const Cls &that) { return !bool (that); } \
+    inline bool operator&& (const Cls &that, bool b) { return bool (that) && b; } \
+    inline bool operator|| (const Cls &that, bool b) { return bool (that) || b; } \
+    inline bool operator&& (bool b, const Cls &that) { return b && bool (that); } \
+    inline bool operator|| (bool b, const Cls &that) { return b || bool (that); }
+#else
+# define WORKAROUND_MSVC7_ERROR_C2593_FOR_BOOL_OP(Cls)
+#endif
+
+/** @def WORKAROUND_MSVC7_ERROR_C2593_FOR_BOOL_OP_TPL
+ * Version of WORKAROUND_MSVC7_ERROR_C2593_FOR_BOOL_OP for template classes.
+ *
+ * @param Tpl       Name of the template class to apply the workaround to
+ * @param ArgsDecl  arguments of the template, as declared in |<>| after the
+ *                  |template| keyword, including |<>|
+ * @param Args      arguments of the template, as specified in |<>| after the
+ *                  template class name when using the, including |<>|
+ *
+ * Example:
+ * @code
+ *      // template class declaration
+ *      template <class C>
+ *      class Foo { ... };
+ *      // applied workaround
+ *      WORKAROUND_MSVC7_ERROR_C2593_FOR_BOOL_OP_TPL (Foo, <class C>, <C>)
+ * @endcode
+ */
+#if defined(_MSC_VER)
+# define WORKAROUND_MSVC7_ERROR_C2593_FOR_BOOL_OP_TPL(Tpl, ArgsDecl, Args) \
+    template ArgsDecl \
+    inline bool operator! (const Tpl Args &that) { return !bool (that); } \
+    template ArgsDecl \
+    inline bool operator&& (const Tpl Args  &that, bool b) { return bool (that) && b; } \
+    template ArgsDecl \
+    inline bool operator|| (const Tpl Args  &that, bool b) { return bool (that) || b; } \
+    template ArgsDecl \
+    inline bool operator&& (bool b, const Tpl Args  &that) { return b && bool (that); } \
+    template ArgsDecl \
+    inline bool operator|| (bool b, const Tpl Args  &that) { return b || bool (that); }
+#else
+# define WORKAROUND_MSVC7_ERROR_C2593_FOR_BOOL_OP_TPL(Tpl, ArgsDecl, Args)
+#endif
+
+
+/** @def DECLARE_CLS_COPY_CTOR_ASSIGN_NOOP
+ * Declares the copy constructor and the assignment operation as inlined no-ops
+ * (non-existent functions) for the given class. Use this macro inside the
+ * private section if you want to effectively disable these operations for your
+ * class.
+ *
+ * @param      Cls     class name to declare for
+ */
+#define DECLARE_CLS_COPY_CTOR_ASSIGN_NOOP(Cls) \
+    inline Cls(const Cls &); \
+    inline Cls &operator= (const Cls &)
+
+
+/** @def DECLARE_CLS_NEW_DELETE_NOOP
+ * Declares the new and delete operations as no-ops (non-existent functions)
+ * for the given class. Use this macro inside the private section if you want
+ * to effectively limit creating class instances on the stack only.
+ *
+ * @note The destructor of the given class must not be virtual, otherwise a
+ * compile time error will occur. Note that this is not a drawback: having
+ * the virtual destructor for a stack-based class is absolutely useless
+ * (the real class of the stack-based instance is always known to the compiler
+ * at compile time, so it will always call the correct destructor).
+ *
+ * @param      Cls     class name to declare for
+ */
+#define DECLARE_CLS_NEW_DELETE_NOOP(Cls) \
+    inline static void *operator new (size_t); \
+    inline static void operator delete (void *)
+
+#endif /* __cplusplus */
+
+/** @} */
+
+#endif /* !IPRT_INCLUDED_cdefs_h */
+