libstdc++/api/a00847_source.html

// -*- C++ -*- forwarding header.


// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,

// 2006, 2007, 2008, 2009, 2010

// Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.


// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.


// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.


// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.


/** @file include/cstdlib

 *  This is a Standard C++ Library file.  You should @c \#include this file

 *  in your programs, rather than any of the @a *.h implementation files.

 *

 *  This is the C++ version of the Standard C Library header @c stdlib.h,

 *  and its contents are (mostly) the same as that header, but are all

 *  contained in the namespace @c std (except for names which are defined

 *  as macros in C).

 */


//

// ISO C++ 14882: 20.4.6  C library

//


#pragma GCC system_header


#include <bits/c++config.h>


#ifndef _GLIBCXX_CSTDLIB

#define _GLIBCXX_CSTDLIB 1


#if !_GLIBCXX_HOSTED

// The C standard does not require a freestanding implementation to

// provide <stdlib.h>.  However, the C++ standard does still require

// <cstdlib> -- but only the functionality mentioned in

// [lib.support.start.term].


#define EXIT_SUCCESS 0

#define EXIT_FAILURE 1


namespace std

{

  extern "C" void abort(void) throw () _GLIBCXX_NORETURN;

  extern "C" int atexit(void (*)()) throw ();

  extern "C" void exit(int) throw () _GLIBCXX_NORETURN;

} // namespace std


#else


#include <stdlib.h>


// Get rid of those macros defined in <stdlib.h> in lieu of real functions.

#undef abort

#undef abs

#undef atexit

#undef atof

#undef atoi

#undef atol

#undef bsearch

#undef calloc

#undef div

#undef exit

#undef free

#undef getenv

#undef labs

#undef ldiv

#undef malloc

#undef mblen

#undef mbstowcs

#undef mbtowc

#undef qsort

#undef rand

#undef realloc

#undef srand

#undef strtod

#undef strtol

#undef strtoul

#undef system

#undef wcstombs

#undef wctomb


namespace std _GLIBCXX_VISIBILITY(default)

{

_GLIBCXX_BEGIN_NAMESPACE_VERSION


  using ::div_t;

  using ::ldiv_t;


  using ::abort;

  using ::abs;

  using ::atexit;

  using ::atof;

  using ::atoi;

  using ::atol;

  using ::bsearch;

  using ::calloc;

  using ::div;

  using ::exit;

  using ::free;

  using ::getenv;

  using ::labs;

  using ::ldiv;

  using ::malloc;

#ifdef _GLIBCXX_HAVE_MBSTATE_T

  using ::mblen;

  using ::mbstowcs;

  using ::mbtowc;

#endif // _GLIBCXX_HAVE_MBSTATE_T

  using ::qsort;

  using ::rand;

  using ::realloc;

  using ::srand;

  using ::strtod;

  using ::strtol;

  using ::strtoul;

  using ::system;

#ifdef _GLIBCXX_USE_WCHAR_T

  using ::wcstombs;

  using ::wctomb;

#endif // _GLIBCXX_USE_WCHAR_T


  inline long

  abs(long __i) { return labs(__i); }


  inline ldiv_t

  div(long __i, long __j) { return ldiv(__i, __j); }


_GLIBCXX_END_NAMESPACE_VERSION

} // namespace


#if _GLIBCXX_USE_C99


#undef _Exit

#undef llabs

#undef lldiv

#undef atoll

#undef strtoll

#undef strtoull

#undef strtof

#undef strtold


namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)

{

_GLIBCXX_BEGIN_NAMESPACE_VERSION


#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

  using ::lldiv_t;

#endif

#if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC

  extern "C" void (_Exit)(int) throw () _GLIBCXX_NORETURN;

#endif

#if !_GLIBCXX_USE_C99_DYNAMIC

  using ::_Exit;

#endif


  inline long long

  abs(long long __x) { return __x >= 0 ? __x : -__x; }


#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

  using ::llabs;


  inline lldiv_t

  div(long long __n, long long __d)

  { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }


  using ::lldiv;

#endif


#if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

  extern "C" long long int (atoll)(const char *) throw ();

  extern "C" long long int

    (strtoll)(const char * __restrict, char ** __restrict, int) throw ();

  extern "C" unsigned long long int

    (strtoull)(const char * __restrict, char ** __restrict, int) throw ();

#endif

#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

  using ::atoll;

  using ::strtoll;

  using ::strtoull;

#endif

  using ::strtof;

  using ::strtold;


_GLIBCXX_END_NAMESPACE_VERSION

} // namespace __gnu_cxx


namespace std

{

#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

  using ::__gnu_cxx::lldiv_t;

#endif

  using ::__gnu_cxx::_Exit;

  using ::__gnu_cxx::abs;

#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

  using ::__gnu_cxx::llabs;

  using ::__gnu_cxx::div;

  using ::__gnu_cxx::lldiv;

#endif

  using ::__gnu_cxx::atoll;

  using ::__gnu_cxx::strtof;

  using ::__gnu_cxx::strtoll;

  using ::__gnu_cxx::strtoull;

  using ::__gnu_cxx::strtold;

} // namespace std


#ifdef __GXX_EXPERIMENTAL_CXX0X__


namespace std

{

#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

  // types

  using std::lldiv_t;


  // functions

  using std::llabs;

  using std::lldiv;

#endif


  using std::atoll;

  using std::strtoll;

  using std::strtoull;


  using std::strtof;

  using std::strtold;


  // overloads

  using std::abs;

#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

  using std::div;

#endif

} // namespace std


#endif // __GXX_EXPERIMENTAL_CXX0X__


#endif // _GLIBCXX_USE_C99


#endif // !_GLIBCXX_HOSTED


#endif