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/*
* Copyright 2009-2015 Samy Al Bahra.
* Copyright 2014 Paul Khuong.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef CK_CC_H
#define CK_CC_H
#if defined(__GNUC__) || defined(__SUNPRO_C)
#include "gcc/ck_cc.h"
#endif
#ifndef CK_CC_RESTRICT
#define CK_CC_RESTRICT
#endif
#ifndef CK_CC_INLINE
#define CK_CC_INLINE inline
#endif
#ifndef CK_CC_FORCE_INLINE
#define CK_CC_FORCE_INLINE inline
#endif
#define CK_CC_DECONST_PTR(X) ((void *)(uintptr_t)(X))
/*
* Container function.
* This relies on (compiler) implementation-defined behavior.
*/
#ifndef CK_CC_CONTAINER
#define CK_CC_CONTAINER(F, T, M, N) \
CK_CC_INLINE static T * \
N(F *p) \
{ \
F *n = p; \
return (T *)(void *)(((char *)n) - ((size_t)&((T *)0)->M)); \
}
#endif
#define CK_CC_PAD(x) union { char pad[x]; }
#ifndef CK_CC_ALIASED
#define CK_CC_ALIASED
#endif
#ifndef CK_CC_UNUSED
#define CK_CC_UNUSED
#endif
#ifndef CK_CC_USED
#define CK_CC_USED
#endif
#ifndef CK_CC_IMM
#define CK_CC_IMM
#endif
#ifndef CK_CC_PACKED
#define CK_CC_PACKED
#endif
#ifndef CK_CC_WEAKREF
#define CK_CC_WEAKREF
#endif
#ifndef CK_CC_ALIGN
#define CK_CC_ALIGN(X)
#endif
#ifndef CK_CC_CACHELINE
#define CK_CC_CACHELINE
#endif
#ifndef CK_CC_LIKELY
#define CK_CC_LIKELY(x) x
#endif
#ifndef CK_CC_UNLIKELY
#define CK_CC_UNLIKELY(x) x
#endif
#ifndef CK_CC_TYPEOF
#define CK_CC_TYPEOF(X, DEFAULT) (DEFAULT)
#endif
#define CK_F_CC_FFS_G(L, T) \
CK_CC_INLINE static int \
ck_cc_##L(T v) \
{ \
unsigned int i; \
\
if (v == 0) \
return 0; \
\
for (i = 1; (v & 1) == 0; i++, v >>= 1); \
return i; \
}
#ifndef CK_F_CC_FFS
#define CK_F_CC_FFS
CK_F_CC_FFS_G(ffs, unsigned int)
#endif /* CK_F_CC_FFS */
#ifndef CK_F_CC_FFSL
#define CK_F_CC_FFSL
CK_F_CC_FFS_G(ffsl, unsigned long)
#endif /* CK_F_CC_FFSL */
#ifndef CK_F_CC_FFSLL
#define CK_F_CC_FFSLL
CK_F_CC_FFS_G(ffsll, unsigned long long)
#endif /* CK_F_CC_FFSLL */
#undef CK_F_CC_FFS_G
#ifndef CK_F_CC_CTZ
#define CK_F_CC_CTZ
CK_CC_INLINE static int
ck_cc_ctz(unsigned int x)
{
unsigned int i;
if (x == 0)
return 0;
for (i = 0; (x & 1) == 0; i++, x >>= 1);
return i;
}
#endif
#ifndef CK_F_CC_POPCOUNT
#define CK_F_CC_POPCOUNT
CK_CC_INLINE static int
ck_cc_popcount(unsigned int x)
{
unsigned int acc;
for (acc = 0; x != 0; x >>= 1)
acc += x & 1;
return acc;
}
#endif
#ifdef __cplusplus
#define CK_CPP_CAST(type, arg) static_cast<type>(arg)
#else
#define CK_CPP_CAST(type, arg) arg
#endif
#endif /* CK_CC_H */
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