# 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, 2008, 2009, 2010
    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 3, 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 // Under Section 7 of GPL version 3, you are granted additional
    00019 // permissions described in the GCC Runtime Library Exception, version
    00020 // 3.1, as published by the Free Software Foundation.
    00021
    00022 // You should have received a copy of the GNU General Public License and
    00023 // a copy of the GCC Runtime Library Exception along with this program;
    00024 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
    00025 // <http://www.gnu.org/licenses/>.
    00026
    00027 /** @file include/cstdlib
    00028  *  This is a Standard C++ Library file.  You should @c \#include this file
    00029  *  in your programs, rather than any of the @a *.h implementation files.
    00030  *
    00031  *  This is the C++ version of the Standard C Library header @c stdlib.h,
    00032  *  and its contents are (mostly) the same as that header, but are all
    00033  *  contained in the namespace @c std (except for names which are defined
    00034  *  as macros in C).
    00035  */
    00036
    00037 //
    00038 // ISO C++ 14882: 20.4.6  C library
    00039 //
    00040
    00041 #pragma GCC system_header
    00042
    00043 #include <bits/c++config.h>
    00044 #include <cstddef>
    00045
    00046 #ifndef _GLIBCXX_CSTDLIB
    00047 #define _GLIBCXX_CSTDLIB 1
    00048
    00049 #if !_GLIBCXX_HOSTED
    00050 // The C standard does not require a freestanding implementation to
    00051 // provide <stdlib.h>.  However, the C++ standard does still require
    00052 // <cstdlib> -- but only the functionality mentioned in
    00053 // [lib.support.start.term].
    00054
    00055 #define EXIT_SUCCESS 0
    00056 #define EXIT_FAILURE 1
    00057
    00058 _GLIBCXX_BEGIN_NAMESPACE(std)
    00059
    00060   extern "C" void abort(void) throw () _GLIBCXX_NORETURN;
    00061   extern "C" int atexit(void (*)()) throw ();
    00062   extern "C" void exit(int) throw () _GLIBCXX_NORETURN;
    00063
    00064 _GLIBCXX_END_NAMESPACE
    00065
    00066 #else
    00067
    00068 #include <stdlib.h>
    00069
    00070 // Get rid of those macros defined in <stdlib.h> in lieu of real functions.
    00071 #undef abort
    00072 #undef abs
    00073 #undef atexit
    00074 #undef atof
    00075 #undef atoi
    00076 #undef atol
    00077 #undef bsearch
    00078 #undef calloc
    00079 #undef div
    00080 #undef exit
    00081 #undef free
    00082 #undef getenv
    00083 #undef labs
    00084 #undef ldiv
    00085 #undef malloc
    00086 #undef mblen
    00087 #undef mbstowcs
    00088 #undef mbtowc
    00089 #undef qsort
    00090 #undef rand
    00091 #undef realloc
    00092 #undef srand
    00093 #undef strtod
    00094 #undef strtol
    00095 #undef strtoul
    00096 #undef system
    00097 #undef wcstombs
    00098 #undef wctomb
    00099
    00100 _GLIBCXX_BEGIN_NAMESPACE(std)
    00101
    00102   using ::div_t;
    00103   using ::ldiv_t;
    00104
    00105   using ::abort;
    00106   using ::abs;
    00107   using ::atexit;
    00108   using ::atof;
    00109   using ::atoi;
    00110   using ::atol;
    00111   using ::bsearch;
    00112   using ::calloc;
    00113   using ::div;
    00114   using ::exit;
    00115   using ::free;
    00116   using ::getenv;
    00117   using ::labs;
    00118   using ::ldiv;
    00119   using ::malloc;
    00120 #ifdef _GLIBCXX_HAVE_MBSTATE_T
    00121   using ::mblen;
    00122   using ::mbstowcs;
    00123   using ::mbtowc;
    00124 #endif // _GLIBCXX_HAVE_MBSTATE_T
    00125   using ::qsort;
    00126   using ::rand;
    00127   using ::realloc;
    00128   using ::srand;
    00129   using ::strtod;
    00130   using ::strtol;
    00131   using ::strtoul;
    00132   using ::system;
    00133 #ifdef _GLIBCXX_USE_WCHAR_T
    00134   using ::wcstombs;
    00135   using ::wctomb;
    00136 #endif // _GLIBCXX_USE_WCHAR_T
    00137
    00138   inline long
    00139   abs(long __i) { return labs(__i); }
    00140
    00141   inline ldiv_t
    00142   div(long __i, long __j) { return ldiv(__i, __j); }
    00143
    00144 _GLIBCXX_END_NAMESPACE
    00145
    00146 #if _GLIBCXX_USE_C99
    00147
    00148 #undef _Exit
    00149 #undef llabs
    00150 #undef lldiv
    00151 #undef atoll
    00152 #undef strtoll
    00153 #undef strtoull
    00154 #undef strtof
    00155 #undef strtold
    00156
    00157 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
    00158
    00159 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00160   using ::lldiv_t;
    00161 #endif
    00162 #if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC
    00163   extern "C" void (_Exit)(int) throw () _GLIBCXX_NORETURN;
    00164 #endif
    00165 #if !_GLIBCXX_USE_C99_DYNAMIC
    00166   using ::_Exit;
    00167 #endif
    00168
    00169   inline long long
    00170   abs(long long __x) { return __x >= 0 ? __x : -__x; }
    00171
    00172 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00173   using ::llabs;
    00174
    00175   inline lldiv_t
    00176   div(long long __n, long long __d)
    00177   { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
    00178
    00179   using ::lldiv;
    00180 #endif
    00181
    00182 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00183   extern "C" long long int (atoll)(const char *) throw ();
    00184   extern "C" long long int
    00185     (strtoll)(const char * restrict, char ** restrict, int) throw ();
    00186   extern "C" unsigned long long int
    00187     (strtoull)(const char * restrict, char ** restrict, int) throw ();
    00188 #endif
    00189 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00190   using ::atoll;
    00191   using ::strtoll;
    00192   using ::strtoull;
    00193 #endif
    00194   using ::strtof;
    00195   using ::strtold;
    00196
    00197 _GLIBCXX_END_NAMESPACE
    00198
    00199 _GLIBCXX_BEGIN_NAMESPACE(std)
    00200
    00201 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00202   using ::__gnu_cxx::lldiv_t;
    00203 #endif
    00204   using ::__gnu_cxx::_Exit;
    00205   using ::__gnu_cxx::abs;
    00206 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
    00207   using ::__gnu_cxx::llabs;
    00208   using ::__gnu_cxx::div;
    00209   using ::__gnu_cxx::lldiv;
    00210 #endif
    00211   using ::__gnu_cxx::atoll;
    00212   using ::__gnu_cxx::strtof;
    00213   using ::__gnu_cxx::strtoll;
    00214   using ::__gnu_cxx::strtoull;
    00215   using ::__gnu_cxx::strtold;
    00216
    00217 _GLIBCXX_END_NAMESPACE
    00218
    00219 #endif // _GLIBCXX_USE_C99
    00220
    00221 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    00222 #  if defined(_GLIBCXX_INCLUDE_AS_TR1)
    00223 #    error C++0x header cannot be included from TR1 header
    00224 #  endif
    00225 #  if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
    00226 #    include <tr1_impl/cstdlib>
    00227 #  else
    00228 #    define _GLIBCXX_INCLUDE_AS_CXX0X
    00229 #    define _GLIBCXX_BEGIN_NAMESPACE_TR1
    00230 #    define _GLIBCXX_END_NAMESPACE_TR1
    00231 #    define _GLIBCXX_TR1
    00232 #    include <tr1_impl/cstdlib>
    00233 #    undef _GLIBCXX_TR1
    00234 #    undef _GLIBCXX_END_NAMESPACE_TR1
    00235 #    undef _GLIBCXX_BEGIN_NAMESPACE_TR1
    00236 #    undef _GLIBCXX_INCLUDE_AS_CXX0X
    00237 #  endif
    00238 #endif
    00239
    00240 #endif // !_GLIBCXX_HOSTED
    00241
    00242 #endif