libstdc++-v3/include/c_std/std_cstdlib.h

   1 // -*- C++ -*- forwarding header.
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
   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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  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.
  42  */
  43
  44 #ifndef _GLIBCXX_CSTDLIB
  45 #define _GLIBCXX_CSTDLIB 1
  46
  47 #pragma GCC system_header
  48
  49 #include <bits/c++config.h>
  50 #include <cstddef>
  51
  52 #include <stdlib.h>
  53
  54 // Get rid of those macros defined in <stdlib.h> in lieu of real functions.
  55 #undef abort
  56 #undef abs
  57 #undef atexit
  58 #undef atof
  59 #undef atoi
  60 #undef atol
  61 #undef bsearch
  62 #undef calloc
  63 #undef div
  64 #undef exit
  65 #undef free
  66 #undef getenv
  67 #undef labs
  68 #undef ldiv
  69 #undef malloc
  70 #undef mblen
  71 #undef mbstowcs
  72 #undef mbtowc
  73 #undef qsort
  74 #undef rand
  75 #undef realloc
  76 #undef srand
  77 #undef strtod
  78 #undef strtol
  79 #undef strtoul
  80 #undef system
  81 #undef wcstombs
  82 #undef wctomb
  83
  84 namespace std
  85 {
  86   using ::div_t;
  87   using ::ldiv_t;
  88
  89   using ::abort;
  90   using ::abs;
  91   using ::atexit;
  92   using ::atof;
  93   using ::atoi;
  94   using ::atol;
  95   using ::bsearch;
  96   using ::calloc;
  97   using ::div;
  98   using ::exit;
  99   using ::free;
 100   using ::getenv;
 101   using ::labs;
 102   using ::ldiv;
 103   using ::malloc;
 104 #ifdef _GLIBCXX_HAVE_MBSTATE_T
 105   using ::mblen;
 106   using ::mbstowcs;
 107   using ::mbtowc;
 108 #endif // _GLIBCXX_HAVE_MBSTATE_T
 109   using ::qsort;
 110   using ::rand;
 111   using ::realloc;
 112   using ::srand;
 113   using ::strtod;
 114   using ::strtol;
 115   using ::strtoul;
 116   using ::system;
 117 #ifdef _GLIBCXX_USE_WCHAR_T
 118   using ::wcstombs;
 119   using ::wctomb;
 120 #endif // _GLIBCXX_USE_WCHAR_T
 121
 122   inline long
 123   abs(long __i) { return labs(__i); }
 124
 125   inline ldiv_t
 126   div(long __i, long __j) { return ldiv(__i, __j); }
 127 }
 128
 129 #if _GLIBCXX_USE_C99
 130
 131 #undef _Exit
 132 #undef llabs
 133 #undef lldiv
 134 #undef atoll
 135 #undef strtoll
 136 #undef strtoull
 137 #undef strtof
 138 #undef strtold
 139
 140 namespace __gnu_cxx
 141 {
 142 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 143   using ::lldiv_t;
 144 #endif
 145 #if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC
 146   extern "C" void (_Exit)(int);
 147 #endif
 148 #if !_GLIBCXX_USE_C99_DYNAMIC
 149   using ::_Exit;
 150 #endif
 151
 152   inline long long
 153   abs(long long __x) { return __x >= 0 ? __x : -__x; }
 154
 155   inline long long
 156   llabs(long long __x) { return __x >= 0 ? __x : -__x; }
 157
 158 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 159   inline lldiv_t
 160   div(long long __n, long long __d)
 161   { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
 162
 163   inline lldiv_t
 164   lldiv(long long __n, long long __d)
 165   { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
 166 #endif
 167
 168 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 169   extern "C" long long int (atoll)(const char *);
 170   extern "C" long long int
 171     (strtoll)(const char * restrict, char ** restrict, int);
 172   extern "C" unsigned long long int
 173     (strtoull)(const char * restrict, char ** restrict, int);
 174 #endif
 175 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 176   using ::atoll;
 177   using ::strtoll;
 178   using ::strtoull;
 179 #endif
 180   using ::strtof;
 181   using ::strtold;
 182 }
 183
 184 namespace std
 185 {
 186 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 187   using __gnu_cxx::lldiv_t;
 188 #endif
 189   using __gnu_cxx::_Exit;
 190   using __gnu_cxx::abs;
 191   using __gnu_cxx::llabs;
 192 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
 193   using __gnu_cxx::div;
 194   using __gnu_cxx::lldiv;
 195 #endif
 196   using __gnu_cxx::atoll;
 197   using __gnu_cxx::strtof;
 198   using __gnu_cxx::strtoll;
 199   using __gnu_cxx::strtoull;
 200   using __gnu_cxx::strtold;
 201 }
 202 #endif
 203
 204 #endif