# cstdlib

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    00001 // -*- C++ -*- forwarding header.
    00002
    00003 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    00004 // 2006, 2007
    00005 // Free Software Foundation, Inc.
    00006 //
    00007 // This file is part of the GNU ISO C++ Library.  This library is free
    00008 // software; you can redistribute it and/or modify it under the
    00009 // terms of the GNU General Public License as published by the
    00010 // Free Software Foundation; either version 2, or (at your option)
    00011 // any later version.
    00012
    00013 // This library is distributed in the hope that it will be useful,
    00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00016 // GNU General Public License for more details.
    00017
    00018 // You should have received a copy of the GNU General Public License
    00019 // along with this library; see the file COPYING.  If not, write to
    00020 // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
    00021 // Boston, MA 02110-1301, USA.
    00022
    00023 // As a special exception, you may use this file as part of a free software
    00024 // library without restriction.  Specifically, if other files instantiate
    00025 // templates or use macros or inline functions from this file, or you compile
    00026 // this file and link it with other files to produce an executable, this
    00027 // file does not by itself cause the resulting executable to be covered by
    00028 // the GNU General Public License.  This exception does not however
    00029 // invalidate any other reasons why the executable file might be covered by
    00030 // the GNU General Public License.
    00031
    00032 /** @file include/cstdlib
    00033  *  This is a Standard C++ Library file.  You should @c #include this file
    00034  *  in your programs, rather than any of the "*.h" implementation files.
    00035  *
    00036  *  This is the C++ version of the Standard C Library header @c stdlib.h,
    00037  *  and its contents are (mostly) the same as that header, but are all
    00038  *  contained in the namespace @c std (except for names which are defined
    00039  *  as macros in C).
    00040  */
    00041
    00042 //
    00043 // ISO C++ 14882: 20.4.6  C library
    00044 //
    00045
    00046 #pragma GCC system_header
    00047
    00048 #include <bits/c++config.h>
    00049 #include <cstddef>
    00050
    00051 #ifndef _GLIBCXX_CSTDLIB
    00052 #define _GLIBCXX_CSTDLIB 1
    00053
    00054 #if !_GLIBCXX_HOSTED
    00055 // The C standard does not require a freestanding implementation to
    00056 // provide <stdlib.h>.  However, the C++ standard does still require
    00057 // <cstdlib> -- but only the functionality mentioned in
    00058 // [lib.support.start.term].
    00059
    00060 #define EXIT_SUCCESS 0
    00061 #define EXIT_FAILURE 1
    00062
    00063 _GLIBCXX_BEGIN_NAMESPACE(std)
    00064
    00065   extern "C" void abort(void);
    00066   extern "C" int atexit(void (*)());
    00067   extern "C" void exit(int);
    00068
    00069 _GLIBCXX_END_NAMESPACE
    00070
    00071 #else
    00072
    00073 #include_next <stdlib.h>
    00074
    00075 // Get rid of those macros defined in <stdlib.h> in lieu of real functions.
    00076 #undef abort
    00077 #undef abs
    00078 #undef atexit
    00079 #undef atof
    00080 #undef atoi
    00081 #undef atol
    00082 #undef bsearch
    00083 #undef calloc
    00084 #undef div
    00085 #undef exit
    00086 #undef free
    00087 #undef getenv
    00088 #undef labs
    00089 #undef ldiv
    00090 #undef malloc
    00091 #undef mblen
    00092 #undef mbstowcs
    00093 #undef mbtowc
    00094 #undef qsort
    00095 #undef rand
    00096 #undef realloc
    00097 #undef srand
    00098 #undef strtod
    00099 #undef strtol
    00100 #undef strtoul
    00101 #undef system
    00102 #undef wcstombs
    00103 #undef wctomb
    00104
    00105 _GLIBCXX_BEGIN_NAMESPACE(std)
    00106
    00107   using ::div_t;
    00108   using ::ldiv_t;
    00109
    00110   using ::abort;
    00111   using ::abs;
    00112   using ::atexit;
    00113   using ::atof;
    00114   using ::atoi;
    00115   using ::atol;
    00116   using ::bsearch;
    00117   using ::calloc;
    00118   using ::div;
    00119   using ::exit;
    00120   using ::free;
    00121   using ::getenv;
    00122   using ::labs;
    00123   using ::ldiv;
    00124   using ::malloc;
    00125 #ifdef _GLIBCXX_HAVE_MBSTATE_T
    00126   using ::mblen;
    00127   using ::mbstowcs;
    00128   using ::mbtowc;
    00129 #endif // _GLIBCXX_HAVE_MBSTATE_T
    00130   using ::qsort;
    00131   using ::rand;
    00132   using ::realloc;
    00133   using ::srand;
    00134   using ::strtod;
    00135   using ::strtol;
    00136   using ::strtoul;
    00137   using ::system;
    00138 #ifdef _GLIBCXX_USE_WCHAR_T
    00139   using ::wcstombs;
    00140   using ::wctomb;
    00141 #endif // _GLIBCXX_USE_WCHAR_T
    00142
    00143   inline long
    00144   abs(long __i) { return labs(__i); }
    00145
    00146   inline ldiv_t
    00147   div(long __i, long __j) { return ldiv(__i, __j); }
    00148
    00149 _GLIBCXX_END_NAMESPACE
    00150
    00151 #if _GLIBCXX_USE_C99
    00152
    00153 #undef _Exit
    00154 #undef llabs
    00155 #undef lldiv
    00156 #undef atoll
    00157 #undef strtoll
    00158 #undef strtoull
    00159 #undef strtof
    00160 #undef strtold
    00161
    00162 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
    00163
    00164 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00165   using ::lldiv_t;
    00166 #endif
    00167 #if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC
    00168   extern "C" void (_Exit)(int);
    00169 #endif
    00170 #if !_GLIBCXX_USE_C99_DYNAMIC
    00171   using ::_Exit;
    00172 #endif
    00173
    00174   inline long long
    00175   abs(long long __x) { return __x >= 0 ? __x : -__x; }
    00176
    00177 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00178   using ::llabs;
    00179
    00180   inline lldiv_t
    00181   div(long long __n, long long __d)
    00182   { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
    00183
    00184   using ::lldiv;
    00185 #endif
    00186
    00187 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00188   extern "C" long long int (atoll)(const char *);
    00189   extern "C" long long int
    00190     (strtoll)(const char * restrict, char ** restrict, int);
    00191   extern "C" unsigned long long int
    00192     (strtoull)(const char * restrict, char ** restrict, int);
    00193 #endif
    00194 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00195   using ::atoll;
    00196   using ::strtoll;
    00197   using ::strtoull;
    00198 #endif
    00199   using ::strtof;
    00200   using ::strtold;
    00201
    00202 _GLIBCXX_END_NAMESPACE
    00203
    00204 _GLIBCXX_BEGIN_NAMESPACE(std)
    00205
    00206 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00207   using ::__gnu_cxx::lldiv_t;
    00208 #endif
    00209   using ::__gnu_cxx::_Exit;
    00210   using ::__gnu_cxx::abs;
    00211 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00212   using ::__gnu_cxx::llabs;
    00213   using ::__gnu_cxx::div;
    00214   using ::__gnu_cxx::lldiv;
    00215 #endif
    00216   using ::__gnu_cxx::atoll;
    00217   using ::__gnu_cxx::strtof;
    00218   using ::__gnu_cxx::strtoll;
    00219   using ::__gnu_cxx::strtoull;
    00220   using ::__gnu_cxx::strtold;
    00221
    00222 _GLIBCXX_END_NAMESPACE
    00223
    00224 #endif // _GLIBCXX_USE_C99
    00225
    00226 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    00227 #  if defined(_GLIBCXX_INCLUDE_AS_TR1)
    00228 #    error C++0x header cannot be included from TR1 header
    00229 #  endif
    00230 #  if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
    00231 #    include <tr1_impl/cstdlib>
    00232 #  else
    00233 #    define _GLIBCXX_INCLUDE_AS_CXX0X
    00234 #    define _GLIBCXX_BEGIN_NAMESPACE_TR1
    00235 #    define _GLIBCXX_END_NAMESPACE_TR1
    00236 #    define _GLIBCXX_TR1
    00237 #    include <tr1_impl/cstdlib>
    00238 #    undef _GLIBCXX_TR1
    00239 #    undef _GLIBCXX_END_NAMESPACE_TR1
    00240 #    undef _GLIBCXX_BEGIN_NAMESPACE_TR1
    00241 #    undef _GLIBCXX_INCLUDE_AS_CXX0X
    00242 #  endif
    00243 #endif
    00244
    00245 #endif // !_GLIBCXX_HOSTED
    00246
    00247 #endif