/* * API versioning definitions for CUPS. * * Copyright © 2007-2019 by Apple Inc. * * Licensed under Apache License v2.0. See the file "LICENSE" for more * information. */ #ifndef _CUPS_VERSIONING_H_ # define _CUPS_VERSIONING_H_ /* * This header defines several macros that add compiler-specific attributes for * functions: * * - _CUPS_API_major_minor[_patch]: Specifies when an API became available by * CUPS version. * - _CUPS_DEPRECATED: Function is deprecated with no replacement. * - _CUPS_DEPRECATED_MSG("message"): Function is deprecated and has a * replacement. * - _CUPS_FORMAT(format-index, additional-args-index): Function has a * printf-style format argument followed by zero or more additional * arguments. Indices start at 1. * - _CUPS_INTERNAL: Function is internal with no replacement API. * - _CUPS_INTERNAL_MSG("msg"): Function is internal - use specified API * instead. * - _CUPS_NONNULL((arg list)): Specifies the comma-separated argument indices * are assumed non-NULL. Indices start at 1. * - _CUPS_NORETURN: Specifies the function does not return. * - _CUPS_PRIVATE: Specifies the function is private to CUPS. * - _CUPS_PUBLIC: Specifies the function is public API. */ /* * Determine which compiler is being used and what annotation features are * available... */ # ifdef __APPLE__ # include # endif /* __APPLE__ */ # ifdef __has_extension /* Clang */ # define _CUPS_HAS_DEPRECATED # define _CUPS_HAS_FORMAT # define _CUPS_HAS_NORETURN # define _CUPS_HAS_VISIBILITY # if __has_extension(attribute_deprecated_with_message) # define _CUPS_HAS_DEPRECATED_WITH_MESSAGE # endif # if __has_extension(attribute_unavailable_with_message) # define _CUPS_HAS_UNAVAILABLE_WITH_MESSAGE # endif # elif defined(__GNUC__) /* GCC and compatible */ # if __GNUC__ >= 3 /* GCC 3.0 or higher */ # define _CUPS_HAS_DEPRECATED # define _CUPS_HAS_FORMAT # define _CUPS_HAS_NORETURN # define _CUPS_HAS_VISIBILITY # endif /* __GNUC__ >= 3 */ # if __GNUC__ >= 5 /* GCC 5.x */ # define _CUPS_HAS_DEPRECATED_WITH_MESSAGE # elif __GNUC__ == 4 && __GNUC_MINOR__ >= 5 /* GCC 4.5 or higher */ # define _CUPS_HAS_DEPRECATED_WITH_MESSAGE # endif /* __GNUC__ >= 5 */ # elif defined(_WIN32) # define __attribute__(...) # endif /* __has_extension */ /* * Define _CUPS_INTERNAL, _CUPS_PRIVATE, and _CUPS_PUBLIC visibilty macros for * internal/private/public functions... */ # ifdef _CUPS_HAS_VISIBILITY # define _CUPS_INTERNAL __attribute__ ((visibility("hidden"))) # define _CUPS_PRIVATE __attribute__ ((visibility("default"))) # define _CUPS_PUBLIC __attribute__ ((visibility("default"))) # elif defined(_WIN32) && defined(LIBCUPS2_EXPORTS) && 0 # define _CUPS_INTERNAL # define _CUPS_PRIVATE __declspec(dllexport) # define _CUPS_PUBLIC __declspec(dllexport) # else # define _CUPS_INTERNAL # define _CUPS_PRIVATE # define _CUPS_PUBLIC # endif /* _CUPS_HAS_VISIBILITY */ /* * Define _CUPS_API_major_minor[_patch] availability macros for CUPS. * * Note: Using any of the _CUPS_API macros automatically adds _CUPS_PUBLIC. */ # if defined(__APPLE__) && !defined(_CUPS_SOURCE) && TARGET_OS_OSX /* * On Apple operating systems, the _CUPS_API_* constants are defined using the * API_ macros in . * * On iOS, we don't actually have libcups available directly, but the supplied * libcups_static target in the Xcode project supports building on iOS 11.0 and * later. */ # define _CUPS_API_1_1_19 API_AVAILABLE(macos(10.3), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_1_1_20 API_AVAILABLE(macos(10.4), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_1_1_21 API_AVAILABLE(macos(10.4), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_1_2 API_AVAILABLE(macos(10.5), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_1_3 API_AVAILABLE(macos(10.5), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_1_4 API_AVAILABLE(macos(10.6), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_1_5 API_AVAILABLE(macos(10.7), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_1_6 API_AVAILABLE(macos(10.8), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_1_7 API_AVAILABLE(macos(10.9), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_2_0 API_AVAILABLE(macos(10.10), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_2_2 API_AVAILABLE(macos(10.12), ios(11.0)) _CUPS_PUBLIC # define _CUPS_API_2_2_4 API_AVAILABLE(macos(10.13), ios(12.0)) _CUPS_PUBLIC # define _CUPS_API_2_2_7 API_AVAILABLE(macos(10.14), ios(13.0)) _CUPS_PUBLIC # define _CUPS_API_2_3 API_AVAILABLE(macos(10.14), ios(13.0)) _CUPS_PUBLIC # else # define _CUPS_API_1_1_19 _CUPS_PUBLIC # define _CUPS_API_1_1_20 _CUPS_PUBLIC # define _CUPS_API_1_1_21 _CUPS_PUBLIC # define _CUPS_API_1_2 _CUPS_PUBLIC # define _CUPS_API_1_3 _CUPS_PUBLIC # define _CUPS_API_1_4 _CUPS_PUBLIC # define _CUPS_API_1_5 _CUPS_PUBLIC # define _CUPS_API_1_6 _CUPS_PUBLIC # define _CUPS_API_1_7 _CUPS_PUBLIC # define _CUPS_API_2_0 _CUPS_PUBLIC # define _CUPS_API_2_2 _CUPS_PUBLIC # define _CUPS_API_2_2_4 _CUPS_PUBLIC # define _CUPS_API_2_2_7 _CUPS_PUBLIC # define _CUPS_API_2_3 _CUPS_PUBLIC # endif /* __APPLE__ && !_CUPS_SOURCE */ /* * Define _CUPS_DEPRECATED and _CUPS_INTERNAL macros to mark old APIs as * "deprecated" or "unavailable" with messages so you get warnings/errors are * compile-time... * * Note: Using any of the _CUPS_DEPRECATED macros automatically adds * _CUPS_PUBLIC. */ # if !defined(_CUPS_HAS_DEPRECATED) || (defined(_CUPS_SOURCE) && !defined(_CUPS_NO_DEPRECATED)) /* * Don't mark functions deprecated if the compiler doesn't support it * or we are building CUPS source that doesn't care. */ # define _CUPS_DEPRECATED _CUPS_PUBLIC # define _CUPS_DEPRECATED_MSG(m) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_2_MSG(m) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_6_MSG(m) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_7_MSG(m) _CUPS_PUBLIC # define _CUPS_DEPRECATED_2_2_MSG(m) _CUPS_PUBLIC # elif defined(__APPLE__) && defined(_CUPS_NO_DEPRECATED) /* * Compiler supports the unavailable attribute, so use it when the code * wants to exclude the use of deprecated API. */ # define _CUPS_DEPRECATED __attribute__ ((unavailable)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_2_MSG(m) API_DEPRECATED(m, macos(10.2,10.5), ios(11.0,11.0)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_6_MSG(m) API_DEPRECATED(m, macos(10.2,10.8), ios(11.0,11.0)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_7_MSG(m) API_DEPRECATED(m, macos(10.2,10.9), ios(11.0,11.0)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_2_2_MSG(m) API_DEPRECATED(m, macos(10.2,10.12), ios(11.0,11.0)) _CUPS_PUBLIC # elif defined(__APPLE__) /* * Just mark things as deprecated... */ # define _CUPS_DEPRECATED __attribute__ ((deprecated)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_2_MSG(m) API_DEPRECATED(m, macos(10.2,10.5), ios(11.0,11.0)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_6_MSG(m) API_DEPRECATED(m, macos(10.2,10.8), ios(11.0,11.0)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_7_MSG(m) API_DEPRECATED(m, macos(10.2,10.9), ios(11.0,11.0)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_2_2_MSG(m) API_DEPRECATED(m, macos(10.2,10.12), ios(11.0,11.0)) _CUPS_PUBLIC # elif defined(_CUPS_HAS_UNAVAILABLE_WITH_MESSAGE) && defined(_CUPS_NO_DEPRECATED) /* * Compiler supports the unavailable attribute, so use it when the code * wants to exclude the use of deprecated API. */ # define _CUPS_DEPRECATED __attribute__ ((unavailable)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_2_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_6_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_7_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_2_2_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC # else /* * Compiler supports the deprecated attribute, so use it. */ # define _CUPS_DEPRECATED __attribute__ ((deprecated)) _CUPS_PUBLIC # ifdef _CUPS_HAS_DEPRECATED_WITH_MESSAGE # define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_2_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_6_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_7_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC # define _CUPS_DEPRECATED_2_2_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC # else # define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_2_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_6_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_1_7_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC # define _CUPS_DEPRECATED_2_2_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC # endif /* _CUPS_HAS_DEPRECATED_WITH_MESSAGE */ # endif /* !_CUPS_HAS_DEPRECATED || (_CUPS_SOURCE && !_CUPS_NO_DEPRECATED) */ /* * Define _CUPS_FORMAT macro for printf-style functions... */ # ifdef _CUPS_HAS_FORMAT # define _CUPS_FORMAT(a,b) __attribute__ ((__format__(__printf__, a,b))) # else # define _CUPS_FORMAT(a,b) # endif /* _CUPS_HAS_FORMAT */ /* * Define _CUPS_INTERNAL_MSG macro for private APIs that have (historical) * public visibility. * * Note: Using the _CUPS_INTERNAL_MSG macro automatically adds _CUPS_PUBLIC. */ # ifdef _CUPS_SOURCE # define _CUPS_INTERNAL_MSG(m) _CUPS_PUBLIC # elif defined(_CUPS_HAS_UNAVAILABLE_WITH_MESSAGE) # define _CUPS_INTERNAL_MSG(m) __attribute__ ((unavailable(m))) _CUPS_PUBLIC # elif defined(_CUPS_HAS_DEPRECATED_WITH_MESSAGE) # define _CUPS_INTERNAL_MSG(m) __attribute__ ((deprecated(m))) _CUPS_PUBLIC # else # define _CUPS_INTERNAL_MSG(m) __attribute__ ((deprecated)) _CUPS_PUBLIC # endif /* _CUPS_SOURCE */ /* * Define _CUPS_NONNULL macro for functions that don't expect non-null * arguments... */ # ifdef _CUPS_HAS_NONNULL # define _CUPS_NONNULL(...) __attribute__ ((nonnull(__VA_ARGS__))) # else # define _CUPS_NONNULL(...) # endif /* _CUPS_HAS_FORMAT */ /* * Define _CUPS_NORETURN macro for functions that don't return. */ # ifdef _CUPS_HAS_NORETURN # define _CUPS_NORETURN __attribute__ ((noreturn)) # else # define _CUPS_NORETURN # endif /* _CUPS_HAS_NORETURN */ #endif /* !_CUPS_VERSIONING_H_ */