1 // -*- C++ -*- forwarding header. 2 3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 4 // 2006, 2007, 2008, 2009, 2010 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 @a *.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 45 #ifndef _GLIBCXX_CSTDLIB 46 #define _GLIBCXX_CSTDLIB 1 47 48 #if !_GLIBCXX_HOSTED 49 // The C standard does not require a freestanding implementation to 50 // provide <stdlib.h>. However, the C++ standard does still require 51 // <cstdlib> -- but only the functionality mentioned in 52 // [lib.support.start.term]. 53 54 #define EXIT_SUCCESS 0 55 #define EXIT_FAILURE 1 56 57 namespace std 58 { 59 extern "C" void abort(void) throw () _GLIBCXX_NORETURN; 60 extern "C" int atexit(void (*)()) throw (); 61 extern "C" void exit(int) throw () _GLIBCXX_NORETURN; 62 } // namespace std 63 64 #else 65 66 #include <stdlib.h> 67 68 // Get rid of those macros defined in <stdlib.h> in lieu of real functions. 69 #undef abort 70 #undef abs 71 #undef atexit 72 #undef atof 73 #undef atoi 74 #undef atol 75 #undef bsearch 76 #undef calloc 77 #undef div 78 #undef exit 79 #undef free 80 #undef getenv 81 #undef labs 82 #undef ldiv 83 #undef malloc 84 #undef mblen 85 #undef mbstowcs 86 #undef mbtowc 87 #undef qsort 88 #undef rand 89 #undef realloc 90 #undef srand 91 #undef strtod 92 #undef strtol 93 #undef strtoul 94 #undef system 95 #undef wcstombs 96 #undef wctomb 97 98 namespace std _GLIBCXX_VISIBILITY(default) 99 { 100 _GLIBCXX_BEGIN_NAMESPACE_VERSION 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_VERSION 145 } // namespace 146 147 #if _GLIBCXX_USE_C99 148 149 #undef _Exit 150 #undef llabs 151 #undef lldiv 152 #undef atoll 153 #undef strtoll 154 #undef strtoull 155 #undef strtof 156 #undef strtold 157 158 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) 159 { 160 _GLIBCXX_BEGIN_NAMESPACE_VERSION 161 162 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 163 using ::lldiv_t; 164 #endif 165 #if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC 166 extern "C" void (_Exit)(int) throw () _GLIBCXX_NORETURN; 167 #endif 168 #if !_GLIBCXX_USE_C99_DYNAMIC 169 using ::_Exit; 170 #endif 171 172 inline long long 173 abs(long long __x) { return __x >= 0 ? __x : -__x; } 174 175 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 176 using ::llabs; 177 178 inline lldiv_t 179 div(long long __n, long long __d) 180 { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; } 181 182 using ::lldiv; 183 #endif 184 185 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 186 extern "C" long long int (atoll)(const char *) throw (); 187 extern "C" long long int 188 (strtoll)(const char * __restrict, char ** __restrict, int) throw (); 189 extern "C" unsigned long long int 190 (strtoull)(const char * __restrict, char ** __restrict, int) throw (); 191 #endif 192 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 193 using ::atoll; 194 using ::strtoll; 195 using ::strtoull; 196 #endif 197 using ::strtof; 198 using ::strtold; 199 200 _GLIBCXX_END_NAMESPACE_VERSION 201 } // namespace __gnu_cxx 202 203 namespace std 204 { 205 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 206 using ::__gnu_cxx::lldiv_t; 207 #endif 208 using ::__gnu_cxx::_Exit; 209 using ::__gnu_cxx::abs; 210 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 211 using ::__gnu_cxx::llabs; 212 using ::__gnu_cxx::div; 213 using ::__gnu_cxx::lldiv; 214 #endif 215 using ::__gnu_cxx::atoll; 216 using ::__gnu_cxx::strtof; 217 using ::__gnu_cxx::strtoll; 218 using ::__gnu_cxx::strtoull; 219 using ::__gnu_cxx::strtold; 220 } // namespace std 221 222 #ifdef __GXX_EXPERIMENTAL_CXX0X__ 223 224 namespace std 225 { 226 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 227 // types 228 using std::lldiv_t; 229 230 // functions 231 using std::llabs; 232 using std::lldiv; 233 #endif 234 235 using std::atoll; 236 using std::strtoll; 237 using std::strtoull; 238 239 using std::strtof; 240 using std::strtold; 241 242 // overloads 243 using std::abs; 244 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 245 using std::div; 246 #endif 247 } // namespace std 248 249 #endif // __GXX_EXPERIMENTAL_CXX0X__ 250 251 #endif // _GLIBCXX_USE_C99 252 253 #endif // !_GLIBCXX_HOSTED 254 255 #endif 256
