1 // -*- C++ -*- 2 //===--------------------------- stdlib.h ---------------------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #if defined(__need_malloc_and_calloc) 11 12 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 13 #pragma GCC system_header 14 #endif 15 16 #include_next <stdlib.h> 17 18 #elif !defined(_LIBCPP_STDLIB_H) 19 #define _LIBCPP_STDLIB_H 20 21 /* 22 stdlib.h synopsis 23 24 Macros: 25 26 EXIT_FAILURE 27 EXIT_SUCCESS 28 MB_CUR_MAX 29 NULL 30 RAND_MAX 31 32 Types: 33 34 size_t 35 div_t 36 ldiv_t 37 lldiv_t // C99 38 39 double atof (const char* nptr); 40 int atoi (const char* nptr); 41 long atol (const char* nptr); 42 long long atoll(const char* nptr); // C99 43 double strtod (const char* restrict nptr, char** restrict endptr); 44 float strtof (const char* restrict nptr, char** restrict endptr); // C99 45 long double strtold (const char* restrict nptr, char** restrict endptr); // C99 46 long strtol (const char* restrict nptr, char** restrict endptr, int base); 47 long long strtoll (const char* restrict nptr, char** restrict endptr, int base); // C99 48 unsigned long strtoul (const char* restrict nptr, char** restrict endptr, int base); 49 unsigned long long strtoull(const char* restrict nptr, char** restrict endptr, int base); // C99 50 int rand(void); 51 void srand(unsigned int seed); 52 void* calloc(size_t nmemb, size_t size); 53 void free(void* ptr); 54 void* malloc(size_t size); 55 void* realloc(void* ptr, size_t size); 56 void abort(void); 57 int atexit(void (*func)(void)); 58 void exit(int status); 59 void _Exit(int status); 60 char* getenv(const char* name); 61 int system(const char* string); 62 void* bsearch(const void* key, const void* base, size_t nmemb, size_t size, 63 int (*compar)(const void *, const void *)); 64 void qsort(void* base, size_t nmemb, size_t size, 65 int (*compar)(const void *, const void *)); 66 int abs( int j); 67 long abs( long j); 68 long long abs(long long j); // C++0X 69 long labs( long j); 70 long long llabs(long long j); // C99 71 div_t div( int numer, int denom); 72 ldiv_t div( long numer, long denom); 73 lldiv_t div(long long numer, long long denom); // C++0X 74 ldiv_t ldiv( long numer, long denom); 75 lldiv_t lldiv(long long numer, long long denom); // C99 76 int mblen(const char* s, size_t n); 77 int mbtowc(wchar_t* restrict pwc, const char* restrict s, size_t n); 78 int wctomb(char* s, wchar_t wchar); 79 size_t mbstowcs(wchar_t* restrict pwcs, const char* restrict s, size_t n); 80 size_t wcstombs(char* restrict s, const wchar_t* restrict pwcs, size_t n); 81 int at_quick_exit(void (*func)(void)) // C++11 82 void quick_exit(int status); // C++11 83 void *aligned_alloc(size_t alignment, size_t size); // C11 84 85 */ 86 87 #include <__config> 88 89 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 90 #pragma GCC system_header 91 #endif 92 93 #include_next <stdlib.h> 94 95 #ifdef __cplusplus 96 extern "C++" { 97 // abs 98 99 #undef abs 100 #undef labs 101 #ifndef _LIBCPP_HAS_NO_LONG_LONG 102 #undef llabs 103 #endif 104 105 // MSVCRT already has the correct prototype in <stdlib.h> if __cplusplus is defined 106 #if !defined(_LIBCPP_MSVCRT) && !defined(__sun__) 107 inline _LIBCPP_INLINE_VISIBILITY long abs(long __x) _NOEXCEPT { 108 return __builtin_labs(__x); 109 } 110 #ifndef _LIBCPP_HAS_NO_LONG_LONG 111 inline _LIBCPP_INLINE_VISIBILITY long long abs(long long __x) _NOEXCEPT { 112 return __builtin_llabs(__x); 113 } 114 #endif // _LIBCPP_HAS_NO_LONG_LONG 115 #endif // !defined(_LIBCPP_MSVCRT) && !defined(__sun__) 116 117 #if !defined(__sun__) 118 inline _LIBCPP_INLINE_VISIBILITY float abs(float __lcpp_x) _NOEXCEPT { 119 return __builtin_fabsf(__lcpp_x); // Use builtins to prevent needing math.h 120 } 121 122 inline _LIBCPP_INLINE_VISIBILITY double abs(double __lcpp_x) _NOEXCEPT { 123 return __builtin_fabs(__lcpp_x); 124 } 125 126 inline _LIBCPP_INLINE_VISIBILITY long double 127 abs(long double __lcpp_x) _NOEXCEPT { 128 return __builtin_fabsl(__lcpp_x); 129 } 130 #endif // !defined(__sun__) 131 132 // div 133 134 #undef div 135 #undef ldiv 136 #ifndef _LIBCPP_HAS_NO_LONG_LONG 137 #undef lldiv 138 #endif 139 140 // MSVCRT already has the correct prototype in <stdlib.h> if __cplusplus is defined 141 #if !defined(_LIBCPP_MSVCRT) && !defined(__sun__) 142 inline _LIBCPP_INLINE_VISIBILITY ldiv_t div(long __x, long __y) _NOEXCEPT { 143 return ::ldiv(__x, __y); 144 } 145 #ifndef _LIBCPP_HAS_NO_LONG_LONG 146 inline _LIBCPP_INLINE_VISIBILITY lldiv_t div(long long __x, 147 long long __y) _NOEXCEPT { 148 return ::lldiv(__x, __y); 149 } 150 #endif // _LIBCPP_HAS_NO_LONG_LONG 151 #endif // _LIBCPP_MSVCRT / __sun__ 152 } // extern "C++" 153 #endif // __cplusplus 154 155 #endif // _LIBCPP_STDLIB_H 156