gnu/dist/gcc4/libstdc++-v3/include/c_std/std_cstdlib.h

   1 // -*- C++ -*- forwarding header.
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 // As a special exception, you may use this file as part of a free software
  23 // library without restriction.  Specifically, if other files instantiate
  24 // templates or use macros or inline functions from this file, or you compile
  25 // this file and link it with other files to produce an executable, this
  26 // file does not by itself cause the resulting executable to be covered by
  27 // the GNU General Public License.  This exception does not however
  28 // invalidate any other reasons why the executable file might be covered by
  29 // the GNU General Public License.
  30
  31 //
  32 // ISO C++ 14882: 20.4.6  C library
  33 //
  34
  35 /** @file cstdlib
  36  *  This is a Standard C++ Library file.  You should @c #include this file
  37  *  in your programs, rather than any of the "*.h" implementation files.
  38  *
  39  *  This is the C++ version of the Standard C Library header @c stdlib.h,
  40  *  and its contents are (mostly) the same as that header, but are all
  41  *  contained in the namespace @c std (except for names which are defined
  42  *  as macros in C).
  43  */
  44
  45 #ifndef _GLIBCXX_CSTDLIB
  46 #define _GLIBCXX_CSTDLIB 1
  47
  48 #pragma GCC system_header
  49
  50 #include <bits/c++config.h>
  51 #include <cstddef>
  52
  53 #if !_GLIBCXX_HOSTED
  54 // The C standard does not require a freestanding implementation to
  55 // provide <stdlib.h>.  However, the C++ standard does still require
  56 // <cstdlib> -- but only the functionality mentioned in
  57 // [lib.support.start.term].
  58
  59 #define EXIT_SUCCESS 0
  60 #define EXIT_FAILURE 1
  61
  62 namespace std
  63 {
  64   extern "C" void abort(void);
  65   extern "C" int atexit(void (*)());
  66   extern "C" void exit(int);
  67 } // namespace std
  68
  69 #else
  70
  71 #include <stdlib.h>
  72
  73 // Get rid of those macros defined in <stdlib.h> in lieu of real functions.
  74 #undef abort
  75 #undef abs
  76 #undef atexit
  77 #undef atof
  78 #undef atoi
  79 #undef atol
  80 #undef bsearch
  81 #undef calloc
  82 #undef div
  83 #undef exit
  84 #undef free
  85 #undef getenv
  86 #undef labs
  87 #undef ldiv
  88 #undef malloc
  89 #undef mblen
  90 #undef mbstowcs
  91 #undef mbtowc
  92 #undef qsort
  93 #undef rand
  94 #undef realloc
  95 #undef srand
  96 #undef strtod
  97 #undef strtol
  98 #undef strtoul
  99 #undef system
 100 #undef wcstombs
 101 #undef wctomb
 102
 103 namespace std
 104 {
 105   using ::div_t;
 106   using ::ldiv_t;
 107
 108   using ::abort;
 109   using ::abs;
 110   using ::atexit;
 111   using ::atof;
 112   using ::atoi;
 113   using ::atol;
 114   using ::bsearch;
 115   using ::calloc;
 116   using ::div;
 117   using ::exit;
 118   using ::free;
 119   using ::getenv;
 120   using ::labs;
 121   using ::ldiv;
 122   using ::malloc;
 123 #ifdef _GLIBCXX_HAVE_MBSTATE_T
 124   using ::mblen;
 125   using ::mbstowcs;
 126   using ::mbtowc;
 127 #endif // _GLIBCXX_HAVE_MBSTATE_T
 128   using ::qsort;
 129   using ::rand;
 130   using ::realloc;
 131   using ::srand;
 132   using ::strtod;
 133   using ::strtol;
 134   using ::strtoul;
 135   using ::system;
 136 #ifdef _GLIBCXX_USE_WCHAR_T
 137   using ::wcstombs;
 138   using ::wctomb;
 139 #endif // _GLIBCXX_USE_WCHAR_T
 140
 141   inline long
 142   abs(long __i) { return labs(__i); }
 143
 144   inline ldiv_t
 145   div(long __i, long __j) { return ldiv(__i, __j); }
 146 } // namespace std
 147
 148 #if _GLIBCXX_USE_C99
 149
 150 #undef _Exit
 151 #undef llabs
 152 #undef lldiv
 153 #undef atoll
 154 #undef strtoll
 155 #undef strtoull
 156 #undef strtof
 157 #undef strtold
 158
 159 namespace __gnu_cxx
 160 {
 161 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 162   using ::lldiv_t;
 163 #endif
 164 #if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC
 165   extern "C" void (_Exit)(int);
 166 #endif
 167 #if !_GLIBCXX_USE_C99_DYNAMIC
 168   using ::_Exit;
 169 #endif
 170
 171   inline long long
 172   abs(long long __x) { return __x >= 0 ? __x : -__x; }
 173
 174 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 175   using ::llabs;
 176
 177   inline lldiv_t
 178   div(long long __n, long long __d)
 179   { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
 180
 181   using ::lldiv;
 182 #endif
 183
 184 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 185   extern "C" long long int (atoll)(const char *);
 186   extern "C" long long int
 187     (strtoll)(const char * restrict, char ** restrict, int);
 188   extern "C" unsigned long long int
 189     (strtoull)(const char * restrict, char ** restrict, int);
 190 #endif
 191 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 192   using ::atoll;
 193   using ::strtoll;
 194   using ::strtoull;
 195 #endif
 196   using ::strtof;
 197   using ::strtold;
 198 }
 199
 200 namespace std
 201 {
 202 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 203   using ::__gnu_cxx::lldiv_t;
 204 #endif
 205   using ::__gnu_cxx::_Exit;
 206   using ::__gnu_cxx::abs;
 207 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 208   using ::__gnu_cxx::llabs;
 209   using ::__gnu_cxx::div;
 210   using ::__gnu_cxx::lldiv;
 211 #endif
 212   using ::__gnu_cxx::atoll;
 213   using ::__gnu_cxx::strtof;
 214   using ::__gnu_cxx::strtoll;
 215   using ::__gnu_cxx::strtoull;
 216   using ::__gnu_cxx::strtold;
 217 }
 218
 219 #endif // _GLIBCXX_USE_C99
 220
 221 #endif // !_GLIBCXX_HOSTED
 222
 223 #endif