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File indexing completed on 2026-05-03 08:14:08
0001 // -*- C++ -*- 0002 //===----------------------------------------------------------------------===// 0003 // 0004 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 0005 // See https://llvm.org/LICENSE.txt for license information. 0006 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 0007 // 0008 //===----------------------------------------------------------------------===// 0009 0010 /* 0011 stdlib.h synopsis 0012 0013 Macros: 0014 0015 EXIT_FAILURE 0016 EXIT_SUCCESS 0017 MB_CUR_MAX 0018 NULL 0019 RAND_MAX 0020 0021 Types: 0022 0023 size_t 0024 div_t 0025 ldiv_t 0026 lldiv_t // C99 0027 0028 double atof (const char* nptr); 0029 int atoi (const char* nptr); 0030 long atol (const char* nptr); 0031 long long atoll(const char* nptr); // C99 0032 double strtod (const char* restrict nptr, char** restrict endptr); 0033 float strtof (const char* restrict nptr, char** restrict endptr); // C99 0034 long double strtold (const char* restrict nptr, char** restrict endptr); // C99 0035 long strtol (const char* restrict nptr, char** restrict endptr, int base); 0036 long long strtoll (const char* restrict nptr, char** restrict endptr, int base); // C99 0037 unsigned long strtoul (const char* restrict nptr, char** restrict endptr, int base); 0038 unsigned long long strtoull(const char* restrict nptr, char** restrict endptr, int base); // C99 0039 int rand(void); 0040 void srand(unsigned int seed); 0041 void* calloc(size_t nmemb, size_t size); 0042 void free(void* ptr); 0043 void* malloc(size_t size); 0044 void* realloc(void* ptr, size_t size); 0045 void abort(void); 0046 int atexit(void (*func)(void)); 0047 void exit(int status); 0048 void _Exit(int status); 0049 char* getenv(const char* name); 0050 int system(const char* string); 0051 void* bsearch(const void* key, const void* base, size_t nmemb, size_t size, 0052 int (*compar)(const void *, const void *)); 0053 void qsort(void* base, size_t nmemb, size_t size, 0054 int (*compar)(const void *, const void *)); 0055 int abs( int j); 0056 long abs( long j); 0057 long long abs(long long j); // C++0X 0058 long labs( long j); 0059 long long llabs(long long j); // C99 0060 div_t div( int numer, int denom); 0061 ldiv_t div( long numer, long denom); 0062 lldiv_t div(long long numer, long long denom); // C++0X 0063 ldiv_t ldiv( long numer, long denom); 0064 lldiv_t lldiv(long long numer, long long denom); // C99 0065 int mblen(const char* s, size_t n); 0066 int mbtowc(wchar_t* restrict pwc, const char* restrict s, size_t n); 0067 int wctomb(char* s, wchar_t wchar); 0068 size_t mbstowcs(wchar_t* restrict pwcs, const char* restrict s, size_t n); 0069 size_t wcstombs(char* restrict s, const wchar_t* restrict pwcs, size_t n); 0070 int at_quick_exit(void (*func)(void)) // C++11 0071 void quick_exit(int status); // C++11 0072 void *aligned_alloc(size_t alignment, size_t size); // C11 0073 0074 */ 0075 0076 #if defined(__cplusplus) && __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) 0077 # include <__cxx03/stdlib.h> 0078 #else 0079 # include <__config> 0080 0081 # if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 0082 # pragma GCC system_header 0083 # endif 0084 0085 // The inclusion of the system's <stdlib.h> is intentionally done once outside of any include 0086 // guards because some code expects to be able to include the underlying system header multiple 0087 // times to get different definitions based on the macros that are set before inclusion. 0088 # if __has_include_next(<stdlib.h>) 0089 # include_next <stdlib.h> 0090 # endif 0091 0092 # if !defined(_LIBCPP_STDLIB_H) 0093 # define _LIBCPP_STDLIB_H 0094 0095 # ifdef __cplusplus 0096 extern "C++" { 0097 // abs 0098 0099 # ifdef abs 0100 # undef abs 0101 # endif 0102 # ifdef labs 0103 # undef labs 0104 # endif 0105 # ifdef llabs 0106 # undef llabs 0107 # endif 0108 0109 // MSVCRT already has the correct prototype in <stdlib.h> if __cplusplus is defined 0110 # if !defined(_LIBCPP_MSVCRT) 0111 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI long abs(long __x) _NOEXCEPT { return __builtin_labs(__x); } 0112 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI long long abs(long long __x) _NOEXCEPT { return __builtin_llabs(__x); } 0113 # endif // !defined(_LIBCPP_MSVCRT) 0114 0115 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI float abs(float __lcpp_x) _NOEXCEPT { 0116 return __builtin_fabsf(__lcpp_x); // Use builtins to prevent needing math.h 0117 } 0118 0119 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI double abs(double __lcpp_x) _NOEXCEPT { 0120 return __builtin_fabs(__lcpp_x); 0121 } 0122 0123 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI long double abs(long double __lcpp_x) _NOEXCEPT { 0124 return __builtin_fabsl(__lcpp_x); 0125 } 0126 0127 // div 0128 0129 # ifdef div 0130 # undef div 0131 # endif 0132 # ifdef ldiv 0133 # undef ldiv 0134 # endif 0135 # ifdef lldiv 0136 # undef lldiv 0137 # endif 0138 0139 // MSVCRT already has the correct prototype in <stdlib.h> if __cplusplus is defined 0140 # if !defined(_LIBCPP_MSVCRT) 0141 inline _LIBCPP_HIDE_FROM_ABI ldiv_t div(long __x, long __y) _NOEXCEPT { return ::ldiv(__x, __y); } 0142 # if !(defined(__FreeBSD__) && !defined(__LONG_LONG_SUPPORTED)) 0143 inline _LIBCPP_HIDE_FROM_ABI lldiv_t div(long long __x, long long __y) _NOEXCEPT { return ::lldiv(__x, __y); } 0144 # endif 0145 # endif // _LIBCPP_MSVCRT 0146 } // extern "C++" 0147 # endif // __cplusplus 0148 # endif // _LIBCPP_STDLIB_H 0149 0150 #endif // defined(__cplusplus) && __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
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