1 // -*- C++ -*- forwarding header. 2 3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 4 // 2006, 2007, 2008, 2009, 2010, 2011 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 #ifndef __CORRECT_ISO_CPP_STDLIB_H_PROTO 139 inline long 140 abs(long __i) { return labs(__i); } 141 142 inline ldiv_t 143 div(long __i, long __j) { return ldiv(__i, __j); } 144 #endif 145 146 _GLIBCXX_END_NAMESPACE_VERSION 147 } // namespace 148 149 #if _GLIBCXX_USE_C99 150 151 #undef _Exit 152 #undef llabs 153 #undef lldiv 154 #undef atoll 155 #undef strtoll 156 #undef strtoull 157 #undef strtof 158 #undef strtold 159 160 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) 161 { 162 _GLIBCXX_BEGIN_NAMESPACE_VERSION 163 164 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 165 using ::lldiv_t; 166 #endif 167 #if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC 168 extern "C" void (_Exit)(int) throw () _GLIBCXX_NORETURN; 169 #endif 170 #if !_GLIBCXX_USE_C99_DYNAMIC 171 using ::_Exit; 172 #endif 173 174 inline long long 175 abs(long long __x) { return __x >= 0 ? __x : -__x; } 176 177 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 178 using ::llabs; 179 180 inline lldiv_t 181 div(long long __n, long long __d) 182 { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; } 183 184 using ::lldiv; 185 #endif 186 187 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 188 extern "C" long long int (atoll)(const char *) throw (); 189 extern "C" long long int 190 (strtoll)(const char * __restrict, char ** __restrict, int) throw (); 191 extern "C" unsigned long long int 192 (strtoull)(const char * __restrict, char ** __restrict, int) throw (); 193 #endif 194 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 195 using ::atoll; 196 using ::strtoll; 197 using ::strtoull; 198 #endif 199 using ::strtof; 200 using ::strtold; 201 202 _GLIBCXX_END_NAMESPACE_VERSION 203 } // namespace __gnu_cxx 204 205 namespace std 206 { 207 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 208 using ::__gnu_cxx::lldiv_t; 209 #endif 210 using ::__gnu_cxx::_Exit; 211 using ::__gnu_cxx::abs; 212 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 213 using ::__gnu_cxx::llabs; 214 using ::__gnu_cxx::div; 215 using ::__gnu_cxx::lldiv; 216 #endif 217 using ::__gnu_cxx::atoll; 218 using ::__gnu_cxx::strtof; 219 using ::__gnu_cxx::strtoll; 220 using ::__gnu_cxx::strtoull; 221 using ::__gnu_cxx::strtold; 222 } // namespace std 223 224 #ifdef __GXX_EXPERIMENTAL_CXX0X__ 225 226 namespace std 227 { 228 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 229 // types 230 using std::lldiv_t; 231 232 // functions 233 using std::llabs; 234 using std::lldiv; 235 #endif 236 237 using std::atoll; 238 using std::strtoll; 239 using std::strtoull; 240 241 using std::strtof; 242 using std::strtold; 243 244 // overloads 245 using std::abs; 246 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC 247 using std::div; 248 #endif 249 } // namespace std 250 251 #endif // __GXX_EXPERIMENTAL_CXX0X__ 252 253 #endif // _GLIBCXX_USE_C99 254 255 #endif // !_GLIBCXX_HOSTED 256 257 #endif 258
