github.com/rajveermalviya/gamen@v0.1.2-0.20220930195403-9be15877c1aa/internal/xcb/include/X11/Xfuncproto.h (about) 1 /* 2 * 3 Copyright 1989, 1991, 1998 The Open Group 4 5 Permission to use, copy, modify, distribute, and sell this software and its 6 documentation for any purpose is hereby granted without fee, provided that 7 the above copyright notice appear in all copies and that both that 8 copyright notice and this permission notice appear in supporting 9 documentation. 10 11 The above copyright notice and this permission notice shall be included in 12 all copies or substantial portions of the Software. 13 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20 21 Except as contained in this notice, the name of The Open Group shall not be 22 used in advertising or otherwise to promote the sale, use or other dealings 23 in this Software without prior written authorization from The Open Group. 24 * 25 */ 26 27 /* Definitions to make function prototypes manageable */ 28 29 #ifndef _XFUNCPROTO_H_ 30 #define _XFUNCPROTO_H_ 31 32 #ifndef NeedFunctionPrototypes 33 #define NeedFunctionPrototypes 1 34 #endif /* NeedFunctionPrototypes */ 35 36 #ifndef NeedVarargsPrototypes 37 #define NeedVarargsPrototypes 1 38 #endif /* NeedVarargsPrototypes */ 39 40 #if NeedFunctionPrototypes 41 42 #ifndef NeedNestedPrototypes 43 #define NeedNestedPrototypes 1 44 #endif /* NeedNestedPrototypes */ 45 46 #ifndef _Xconst 47 #define _Xconst const 48 #endif /* _Xconst */ 49 50 /* Function prototype configuration (see configure for more info) */ 51 #if !defined(NARROWPROTO) && \ 52 (defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)) 53 #define NARROWPROTO 54 #endif 55 #ifndef FUNCPROTO 56 #define FUNCPROTO 15 57 #endif 58 59 #ifndef NeedWidePrototypes 60 #ifdef NARROWPROTO 61 #define NeedWidePrototypes 0 62 #else 63 #define NeedWidePrototypes 1 /* default to make interropt. easier */ 64 #endif 65 #endif /* NeedWidePrototypes */ 66 67 #endif /* NeedFunctionPrototypes */ 68 69 #ifndef _XFUNCPROTOBEGIN 70 #if defined(__cplusplus) || defined(c_plusplus) /* for C++ V2.0 */ 71 #define _XFUNCPROTOBEGIN extern "C" { /* do not leave open across includes */ 72 #define _XFUNCPROTOEND } 73 #else 74 #define _XFUNCPROTOBEGIN 75 #define _XFUNCPROTOEND 76 #endif 77 #endif /* _XFUNCPROTOBEGIN */ 78 79 /* http://clang.llvm.org/docs/LanguageExtensions.html#has-attribute */ 80 #ifndef __has_attribute 81 # define __has_attribute(x) 0 /* Compatibility with non-clang compilers. */ 82 #endif 83 #ifndef __has_feature 84 # define __has_feature(x) 0 /* Compatibility with non-clang compilers. */ 85 #endif 86 #ifndef __has_extension 87 # define __has_extension(x) 0 /* Compatibility with non-clang compilers. */ 88 #endif 89 90 /* Added in X11R6.9, so available in any version of modular xproto */ 91 #if __has_attribute(__sentinel__) || (defined(__GNUC__) && (__GNUC__ >= 4)) 92 # define _X_SENTINEL(x) __attribute__ ((__sentinel__(x))) 93 #else 94 # define _X_SENTINEL(x) 95 #endif /* GNUC >= 4 */ 96 97 /* Added in X11R6.9, so available in any version of modular xproto */ 98 #if (__has_attribute(visibility) || (defined(__GNUC__) && (__GNUC__ >= 4))) \ 99 && !defined(__CYGWIN__) && !defined(__MINGW32__) 100 # define _X_EXPORT __attribute__((visibility("default"))) 101 # define _X_HIDDEN __attribute__((visibility("hidden"))) 102 # define _X_INTERNAL __attribute__((visibility("internal"))) 103 #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) 104 # define _X_EXPORT __global 105 # define _X_HIDDEN __hidden 106 # define _X_INTERNAL __hidden 107 #else /* not gcc >= 4 and not Sun Studio >= 8 */ 108 # define _X_EXPORT 109 # define _X_HIDDEN 110 # define _X_INTERNAL 111 #endif /* GNUC >= 4 */ 112 113 /* Branch prediction hints for individual conditionals */ 114 /* requires xproto >= 7.0.9 */ 115 #if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 303) 116 # define _X_LIKELY(x) __builtin_expect(!!(x), 1) 117 # define _X_UNLIKELY(x) __builtin_expect(!!(x), 0) 118 #else /* not gcc >= 3.3 */ 119 # define _X_LIKELY(x) (x) 120 # define _X_UNLIKELY(x) (x) 121 #endif 122 123 /* Bulk branch prediction hints via marking error path functions as "cold" */ 124 /* requires xproto >= 7.0.25 */ 125 #if __has_attribute(__cold__) || \ 126 (defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 403)) /* 4.3+ */ 127 # define _X_COLD __attribute__((__cold__)) 128 #else 129 # define _X_COLD /* nothing */ 130 #endif 131 132 /* Added in X11R6.9, so available in any version of modular xproto */ 133 #if __has_attribute(deprecated) \ 134 || (defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 301)) \ 135 || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x5130)) 136 # define _X_DEPRECATED __attribute__((deprecated)) 137 #else /* not gcc >= 3.1 */ 138 # define _X_DEPRECATED 139 #endif 140 141 /* requires xproto >= 7.0.30 */ 142 #if __has_extension(attribute_deprecated_with_message) || \ 143 (defined(__GNUC__) && ((__GNUC__ >= 5) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)))) 144 # define _X_DEPRECATED_MSG(_msg) __attribute__((deprecated(_msg))) 145 #else 146 # define _X_DEPRECATED_MSG(_msg) _X_DEPRECATED 147 #endif 148 149 /* requires xproto >= 7.0.17 */ 150 #if __has_attribute(noreturn) \ 151 || (defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 205)) \ 152 || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) 153 # define _X_NORETURN __attribute((noreturn)) 154 #else 155 # define _X_NORETURN 156 #endif /* GNUC */ 157 158 /* Added in X11R6.9, so available in any version of modular xproto */ 159 #if __has_attribute(__format__) \ 160 || defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 203) 161 # define _X_ATTRIBUTE_PRINTF(x,y) __attribute__((__format__(__printf__,x,y))) 162 #else /* not gcc >= 2.3 */ 163 # define _X_ATTRIBUTE_PRINTF(x,y) 164 #endif 165 166 /* requires xproto >= 7.0.22 - since this uses either gcc or C99 variable 167 argument macros, must be only used inside #ifdef _X_NONNULL guards, as 168 many legacy X clients are compiled in C89 mode still. */ 169 #if __has_attribute(nonnull) \ 170 && defined(__STDC_VERSION__) && (__STDC_VERSION__ - 0 >= 199901L) /* C99 */ 171 #define _X_NONNULL(...) __attribute__((nonnull(__VA_ARGS__))) 172 #elif __has_attribute(nonnull) \ 173 || defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 303) 174 #define _X_NONNULL(args...) __attribute__((nonnull(args))) 175 #elif defined(__STDC_VERSION__) && (__STDC_VERSION__ - 0 >= 199901L) /* C99 */ 176 #define _X_NONNULL(...) /* */ 177 #endif 178 179 /* requires xproto >= 7.0.22 */ 180 #if __has_attribute(__unused__) \ 181 || defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 205) 182 #define _X_UNUSED __attribute__((__unused__)) 183 #else 184 #define _X_UNUSED /* */ 185 #endif 186 187 /* C99 keyword "inline" or equivalent extensions in pre-C99 compilers */ 188 /* requires xproto >= 7.0.9 189 (introduced in 7.0.8 but didn't support all compilers until 7.0.9) */ 190 #if defined(inline) /* assume autoconf set it correctly */ || \ 191 (defined(__STDC_VERSION__) && (__STDC_VERSION__ - 0 >= 199901L)) /* C99 */ || \ 192 (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)) 193 # define _X_INLINE inline 194 #elif defined(__GNUC__) && !defined(__STRICT_ANSI__) /* gcc w/C89+extensions */ 195 # define _X_INLINE __inline__ 196 #else 197 # define _X_INLINE 198 #endif 199 200 /* C99 keyword "restrict" or equivalent extensions in pre-C99 compilers */ 201 /* requires xproto >= 7.0.21 */ 202 #ifndef _X_RESTRICT_KYWD 203 # if defined(restrict) /* assume autoconf set it correctly */ || \ 204 (defined(__STDC_VERSION__) && (__STDC_VERSION__ - 0 >= 199901L) /* C99 */ \ 205 && !defined(__cplusplus)) /* Workaround g++ issue on Solaris */ 206 # define _X_RESTRICT_KYWD restrict 207 # elif defined(__GNUC__) && !defined(__STRICT_ANSI__) /* gcc w/C89+extensions */ 208 # define _X_RESTRICT_KYWD __restrict__ 209 # else 210 # define _X_RESTRICT_KYWD 211 # endif 212 #endif 213 214 /* requires xproto >= 7.0.30 */ 215 #if __has_attribute(no_sanitize_thread) 216 # define _X_NOTSAN __attribute__((no_sanitize_thread)) 217 #else 218 # define _X_NOTSAN 219 #endif 220 221 /* Mark a char array/pointer as not containing a NUL-terminated string */ 222 /* requires xproto >= 7.0.33 */ 223 #if __has_attribute(nonstring) 224 # define _X_NONSTRING __attribute__((nonstring)) 225 #else 226 # define _X_NONSTRING 227 #endif 228 229 #endif /* _XFUNCPROTO_H_ */