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lib/libcompat.h
326 строк
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Branden Archer
Update window workflow (#377)
01 июл 2026, 10:23
Не верифицирован
01 июл 2026, 10:23
bcb753f
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/* * Check: a unit test framework for C * Copyright (C) 2001, 2002 Arien Malec * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, * MA 02110-1301, USA. */ #ifndef LIBCOMPAT_H #define LIBCOMPAT_H #if HAVE_CONFIG_H #include <config.h> #endif /** * __GNUC_PATCHLEVEL__ is new to GCC 3.0; * it is also present in the widely-used development snapshots leading up to 3.0 * (which identify themselves as GCC 2.96 or 2.97, depending on which snapshot you have). * * https://stackoverflow.com/questions/1936719/what-are-the-gcc-predefined-macros-for-the-compilers-version-number/1936745#1936745 */ #if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__) #define GCC_VERSION_AT_LEAST(major, minor, patch) \ ((__GNUC__ > (major)) || \ (__GNUC__ == (major) && __GNUC_MINOR__ > (minor)) || \ (__GNUC__ == (major) && __GNUC_MINOR__ == (minor) && __GNUC_PATCHLEVEL__ >= (patch)) ) #elif defined(__GNUC__) && defined(__GNUC_MINOR__) #define GCC_VERSION_AT_LEAST(major, minor, patch) \ ((__GNUC__ > (major)) || \ (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) #else #define GCC_VERSION_AT_LEAST(major, minor, patch) 0 #endif #if GCC_VERSION_AT_LEAST(2,95,3) #define CK_ATTRIBUTE_UNUSED __attribute__ ((unused)) #define CK_ATTRIBUTE_FORMAT(a, b, c) __attribute__ ((format (a, b, c))) #else #define CK_ATTRIBUTE_UNUSED #define CK_ATTRIBUTE_FORMAT(a, b, c) #endif /* GCC 2.95 */ #if GCC_VERSION_AT_LEAST(2,5,0) #define CK_ATTRIBUTE_NORETURN __attribute__ ((noreturn)) #else #define CK_ATTRIBUTE_NORETURN #endif /* GCC 2.5 */ #if GCC_VERSION_AT_LEAST(4,7,4) && (__STDC_VERSION__ >= 199901L) /* Operator _Pragma introduced in C99 */ #define CK_DIAGNOSTIC_STRINGIFY(x) #x #define CK_DIAGNOSTIC_HELPER1(y) CK_DIAGNOSTIC_STRINGIFY(GCC diagnostic ignored y) #define CK_DIAGNOSTIC_HELPER2(z) CK_DIAGNOSTIC_HELPER1(#z) #define CK_DIAGNOSTIC_PUSH_IGNORE(w) \ _Pragma("GCC diagnostic push") \ _Pragma(CK_DIAGNOSTIC_HELPER2(w)) #define CK_DIAGNOSTIC_POP(w) _Pragma ("GCC diagnostic pop") #else #define CK_DIAGNOSTIC_PUSH_IGNORE(w) #define CK_DIAGNOSTIC_POP(w) #endif /* GCC 4.7.4 */ /* * Used for MSVC to create the export attribute * CK_DLL_EXP is defined during the compilation of the library * on the command line. */ #ifndef CK_DLL_EXP #define CK_DLL_EXP #endif #if defined(_MSC_VER) #include <WinSock2.h> /* struct timeval, API used in gettimeofday implementation */ #include <io.h> /* read, write */ #include <process.h> /* getpid */ #endif /* _MSC_VER */ /* * On some not so old version of Visual Studio (< 2015), or with mingw-w64 not * supporting POSIX printf family function, use the size prefix specifiers * in msvcrt.dll. See the following link for the list of the size prefix * specifiers: * https://docs.microsoft.com/en-us/cpp/c-runtime-library/format-specification-syntax-printf-and-wprintf-functions?view=vs-2019 */ #ifdef _WIN32 #define CK_FMT_ZU "%Iu" #define CK_FMT_ZD "%Id" #define CK_FMT_TD "%Id" #else #define CK_FMT_ZU "%zu" #define CK_FMT_ZD "%zd" #define CK_FMT_TD "%td" #endif /* defines size_t */ #include <sys/types.h> /* provides assert */ #include <assert.h> /* defines FILE */ #include <stdio.h> /* defines exit() */ #include <stdlib.h> /* defines NAN, INFINITY, isnan(), isinf(), isfinite() */ #include <math.h> /* However, some older Visual Studio Versions do not */ #if !defined(INFINITY) || !defined(NAN) extern double DOUBLE_ZERO; #define INFINITY (1.0/DOUBLE_ZERO) #define NAN (DOUBLE_ZERO/DOUBLE_ZERO) #endif #if !defined(isnan) || !defined(isinf) || !defined(isfinite) #define NEED_fpclassify extern int fpclassify(double d); #define FP_INFINITE (1) #define FP_NAN (2) #define FP_ZERO (4) #define FP_NORMAL (8) #define FP_SUBNORMAL (16) #define isnan(x) ((fpclassify((double)(x)) & FP_NAN) == FP_NAN) #define isinf(x) ((fpclassify((double)(x)) & FP_INFINITE) == FP_INFINITE) #define isfinite(x) ((fpclassify((double)(x)) & (FP_NAN|FP_INFINITE)) == 0) #endif /* provides localtime and struct tm */ #ifdef HAVE_SYS_TIME_H #include <sys/time.h> #endif /* !HAVE_SYS_TIME_H */ #include <time.h> /* declares fork(), _POSIX_VERSION. according to Autoconf.info, unistd.h defines _POSIX_VERSION if the system is POSIX-compliant, so we will use this as a test for all things uniquely provided by POSIX like sigaction() and fork() */ #ifdef HAVE_UNISTD_H #include <unistd.h> #endif #ifdef HAVE_SYS_WAIT_H #include <sys/wait.h> #endif #if defined(HAVE_INIT_ONCE_BEGIN_INITIALIZE) && defined(HAVE_INIT_ONCE_COMPLETE) #define HAVE_WIN32_INIT_ONCE 1 #endif /* declares pthread_create and friends */ #if defined HAVE_PTHREAD #include <pthread.h> #elif defined HAVE_WIN32_INIT_ONCE typedef void pthread_mutexattr_t; typedef struct { INIT_ONCE init; HANDLE mutex; } pthread_mutex_t; #define PTHREAD_MUTEX_INITIALIZER { \ INIT_ONCE_STATIC_INIT, \ NULL, \ } int pthread_mutex_init(pthread_mutex_t *mutex, pthread_mutexattr_t *attr); int pthread_mutex_destroy(pthread_mutex_t *mutex); int pthread_mutex_lock(pthread_mutex_t *mutex); int pthread_mutex_unlock(pthread_mutex_t *mutex); #endif #ifdef HAVE_STDINT_H #include <stdint.h> #endif /* replacement functions for broken originals */ #if !HAVE_DECL_ALARM CK_DLL_EXP unsigned int alarm(unsigned int seconds); #endif /* !HAVE_DECL_ALARM */ #if !HAVE_MALLOC CK_DLL_EXP void *rpl_malloc(size_t n); #endif /* !HAVE_MALLOC */ #if !HAVE_REALLOC CK_DLL_EXP void *rpl_realloc(void *p, size_t n); #endif /* !HAVE_REALLOC */ #if !HAVE_GETPID && HAVE__GETPID #define getpid _getpid #endif /* !HAVE_GETPID && HAVE__GETPID */ #if !HAVE_GETTIMEOFDAY CK_DLL_EXP int gettimeofday(struct timeval *tv, void *tz); #endif /* !HAVE_GETTIMEOFDAY */ #if !HAVE_DECL_LOCALTIME_R #if !defined(localtime_r) CK_DLL_EXP struct tm *localtime_r(const time_t * clock, struct tm *result); #endif #endif /* !HAVE_DECL_LOCALTIME_R */ #if !HAVE_DECL_STRDUP && !HAVE__STRDUP CK_DLL_EXP char *strdup(const char *str); #elif !HAVE_DECL_STRDUP && HAVE__STRDUP #define strdup _strdup #endif /* !HAVE_DECL_STRDUP && HAVE__STRDUP */ #if !HAVE_DECL_STRSIGNAL CK_DLL_EXP char *strsignal(int sig); #endif /* !HAVE_DECL_STRSIGNAL */ #if !HAVE_CLOCK_GETTIME CK_DLL_EXP int clock_gettime(clockid_t clk_id, struct timespec *ts); #endif /* !HAVE_CLOCK_GETTIME */ /* * On systems where clock_gettime() is not available, or * on systems where some clocks may not be supported, the * definition for CLOCK_MONOTONIC and CLOCK_REALTIME may not * be available. These should define which type of clock * clock_gettime() should use. We define it here if it is * not defined simply so the reimplementation can ignore it. * * We set the values of these clocks to some (hopefully) * invalid value, to avoid the case where we define a * clock with a valid value, and unintentionally use * an actual good clock by accident. */ #ifndef CLOCK_MONOTONIC #define CLOCK_MONOTONIC -1 #endif #ifndef CLOCK_REALTIME #define CLOCK_REALTIME -1 #endif #ifndef HAVE_LIBRT #ifdef STRUCT_TIMESPEC_DEFINITION_MISSING /* * The following structure is defined in POSIX 1003.1 for times * specified in seconds and nanoseconds. If it is not defined in * time.g, then we need to define it here */ struct timespec { time_t tv_sec; long tv_nsec; }; #endif /* STRUCT_TIMESPEC_DEFINITION_MISSING */ #ifdef STRUCT_ITIMERSPEC_DEFINITION_MISSING /* * The following structure is defined in POSIX.1b for timer start values and intervals. * If it is not defined in time.h, then we need to define it here. */ struct itimerspec { struct timespec it_interval; struct timespec it_value; }; #endif /* STRUCT_ITIMERSPEC_DEFINITION_MISSING */ /* * Do a simple forward declaration in case the struct is not defined. * In the versions of timer_create in libcompat, sigevent is never * used. */ struct sigevent; CK_DLL_EXP int timer_create(clockid_t clockid, struct sigevent *sevp, timer_t * timerid); CK_DLL_EXP int timer_settime(timer_t timerid, int flags, const struct itimerspec *new_value, struct itimerspec *old_value); CK_DLL_EXP int timer_delete(timer_t timerid); #endif /* HAVE_LIBRT */ /* * The following checks are to determine if the system's * snprintf (or its variants) should be replaced with * the C99 compliant version in libcompat. */ #if HAVE_CONFIG_H #include <config.h> #endif #if HAVE_STDARG_H #include <stdarg.h> #if !HAVE_VSNPRINTF CK_DLL_EXP int rpl_vsnprintf(char *, size_t, const char *, va_list); #define vsnprintf rpl_vsnprintf #endif #if !HAVE_SNPRINTF CK_DLL_EXP int rpl_snprintf(char *, size_t, const char *, ...); #define snprintf rpl_snprintf #endif #endif /* HAVE_STDARG_H */ #if !HAVE_GETLINE CK_DLL_EXP ssize_t getline(char **lineptr, size_t *n, FILE *stream); #endif /* silence warnings about an empty library */ CK_DLL_EXP void ck_do_nothing(void) CK_ATTRIBUTE_NORETURN; #endif /* !LIBCOMPAT_H */