1 // -*- C++ -*- forwarding header. 2 3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 4 // 2006, 2007, 2008, 2009 5 // Free Software Foundation, Inc. 6 // 7 // This file is part of the GNU ISO C++ Library. This library is free 8 // software; you can redistribute it and/or modify it under the 9 // terms of the GNU General Public License as published by the 10 // Free Software Foundation; either version 3, or (at your option) 11 // any later version. 12 13 // This library is distributed in the hope that it will be useful, 14 // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 // GNU General Public License for more details. 17 18 // Under Section 7 of GPL version 3, you are granted additional 19 // permissions described in the GCC Runtime Library Exception, version 20 // 3.1, as published by the Free Software Foundation. 21 22 // You should have received a copy of the GNU General Public License and 23 // a copy of the GCC Runtime Library Exception along with this program; 24 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 25 // <http://www.gnu.org/licenses/>. 26 27 /** @file include/cstdlib 28 * This is a Standard C++ Library file. You should @c #include this file 29 * in your programs, rather than any of the "*.h" implementation files. 30 * 31 * This is the C++ version of the Standard C Library header @c stdlib.h, 32 * and its contents are (mostly) the same as that header, but are all 33 * contained in the namespace @c std (except for names which are defined 34 * as macros in C). 35 */ 36 37 // 38 // ISO C++ 14882: 20.4.6 C library 39 // 40 41 #pragma GCC system_header 42 43 #include <bits/c++config.h> 44 #include <cstddef> 45 46 #ifndef _GLIBCXX_CSTDLIB 47 #define _GLIBCXX_CSTDLIB 1 48 49 #if !_GLIBCXX_HOSTED 50 // The C standard does not require a freestanding implementation to 51 // provide <stdlib.h>. However, the C++ standard does still require 52 // <cstdlib> -- but only the functionality mentioned in 53 // [lib.support.start.term]. 54 55 #define EXIT_SUCCESS 0 56 #define EXIT_FAILURE 1 57 58 _GLIBCXX_BEGIN_NAMESPACE(std) 59 60 extern "C" void abort(void); 61 extern "C" int atexit(void (*)()); 62 extern "C" void exit(int); 63 64 _GLIBCXX_END_NAMESPACE 65 66 #else 67 68 #include <stdlib.h> 69 70 // Get rid of those macros defined in <stdlib.h> in lieu of real functions. 71 #undef abort 72 #undef abs 73 #undef atexit 74 #undef atof 75 #undef atoi 76 #undef atol 77 #undef bsearch 78 #undef calloc 79 #undef div 80 #undef exit 81 #undef free 82 #undef getenv 83 #undef labs 84 #undef ldiv 85 #undef malloc 86 #undef mblen 87 #undef mbstowcs 88 #undef mbtowc 89 #undef qsort 90 #undef rand 91 #undef realloc 92 #undef srand 93 #undef strtod 94 #undef strtol 95 #undef strtoul 96 #undef system 97 #undef wcstombs 98 #undef wctomb 99 100 _GLIBCXX_BEGIN_NAMESPACE(std) 101 102 using ::div_t; 103 using ::ldiv_t; 104 105 using ::abort; 106 using ::abs; 107 using ::atexit; 108 using ::atof; 109 using ::atoi; 110 using ::atol; 111 using ::bsearch; 112 using ::calloc; 113 using ::div; 114 using ::exit; 115 using ::free; 116 using ::getenv; 117 using ::labs; 118 using ::ldiv; 119 using ::malloc; 120 #ifdef _GLIBCXX_HAVE_MBSTATE_T 121 using ::mblen; 122 using ::mbstowcs; 123 using ::mbtowc; 124 #endif // _GLIBCXX_HAVE_MBSTATE_T 125 using ::qsort; 126 using ::rand; 127 using ::realloc; 128 using ::srand; 129 using ::strtod; 130 using ::strtol; 131 using ::strtoul; 132 using ::system; 133 #ifdef _GLIBCXX_USE_WCHAR_T 134 using ::wcstombs; 135 using ::wctomb; 136 #endif // _GLIBCXX_USE_WCHAR_T 137 138 inline long 139 abs(long __i) { return labs(__i); } 140 141 inline ldiv_t 142 div(long __i, long __j) { return ldiv(__i, __j); } 143 144 _GLIBCXX_END_NAMESPACE 145 146 #if _GLIBCXX_USE_C99 147 148 #undef _Exit 149 #undef llabs 150 #undef lldiv 151 #undef atoll 152 #undef strtoll 153 #undef strtoull 154 #undef strtof 155 #undef strtold 156 157 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) 158 159 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 160 using ::lldiv_t; 161 #endif 162 #if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC 163 extern "C" void (_Exit)(int); 164 #endif 165 #if !_GLIBCXX_USE_C99_DYNAMIC 166 using ::_Exit; 167 #endif 168 169 inline long long 170 abs(long long __x) { return __x >= 0 ? __x : -__x; } 171 172 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 173 using ::llabs; 174 175 inline lldiv_t 176 div(long long __n, long long __d) 177 { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; } 178 179 using ::lldiv; 180 #endif 181 182 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 183 extern "C" long long int (atoll)(const char *); 184 extern "C" long long int 185 (strtoll)(const char * restrict, char ** restrict, int); 186 extern "C" unsigned long long int 187 (strtoull)(const char * restrict, char ** restrict, int); 188 #endif 189 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 190 using ::atoll; 191 using ::strtoll; 192 using ::strtoull; 193 #endif 194 using ::strtof; 195 using ::strtold; 196 197 _GLIBCXX_END_NAMESPACE 198 199 _GLIBCXX_BEGIN_NAMESPACE(std) 200 201 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 202 using ::__gnu_cxx::lldiv_t; 203 #endif 204 using ::__gnu_cxx::_Exit; 205 using ::__gnu_cxx::abs; 206 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 207 using ::__gnu_cxx::llabs; 208 using ::__gnu_cxx::div; 209 using ::__gnu_cxx::lldiv; 210 #endif 211 using ::__gnu_cxx::atoll; 212 using ::__gnu_cxx::strtof; 213 using ::__gnu_cxx::strtoll; 214 using ::__gnu_cxx::strtoull; 215 using ::__gnu_cxx::strtold; 216 217 _GLIBCXX_END_NAMESPACE 218 219 #endif // _GLIBCXX_USE_C99 220 221 #ifdef __GXX_EXPERIMENTAL_CXX0X__ 222 # if defined(_GLIBCXX_INCLUDE_AS_TR1) 223 # error C++0x header cannot be included from TR1 header 224 # endif 225 # if defined(_GLIBCXX_INCLUDE_AS_CXX0X) 226 # include <tr1_impl/cstdlib> 227 # else 228 # define _GLIBCXX_INCLUDE_AS_CXX0X 229 # define _GLIBCXX_BEGIN_NAMESPACE_TR1 230 # define _GLIBCXX_END_NAMESPACE_TR1 231 # define _GLIBCXX_TR1 232 # include <tr1_impl/cstdlib> 233 # undef _GLIBCXX_TR1 234 # undef _GLIBCXX_END_NAMESPACE_TR1 235 # undef _GLIBCXX_BEGIN_NAMESPACE_TR1 236 # undef _GLIBCXX_INCLUDE_AS_CXX0X 237 # endif 238 #endif 239 240 #endif // !_GLIBCXX_HOSTED 241 242 #endif 243
