libstdc++-v3/include/bits/range_access.h

   1 // <range_access.h> -*- C++ -*-
   2
   3 // Copyright (C) 2010 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // Under Section 7 of GPL version 3, you are granted additional
  17 // permissions described in the GCC Runtime Library Exception, version
  18 // 3.1, as published by the Free Software Foundation.
  19
  20 // You should have received a copy of the GNU General Public License and
  21 // a copy of the GCC Runtime Library Exception along with this program;
  22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 /** @file bits/range_access.h
  26  *  This is an internal header file, included by other library headers.
  27  *  Do not attempt to use it directly. @headername{iterator}
  28  */
  29
  30 #ifndef _GLIBCXX_RANGE_ACCESS_H
  31 #define _GLIBCXX_RANGE_ACCESS_H 1
  32
  33 #pragma GCC system_header
  34
  35 #ifdef __GXX_EXPERIMENTAL_CXX0X__
  36
  37 namespace std _GLIBCXX_VISIBILITY(default)
  38 {
  39 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  40
  41   /**
  42    *  @brief  Return an iterator pointing to the first element of
  43    *          the container.
  44    *  @param  __cont  Container.
  45    */
  46   template<class _Container>
  47     inline auto
  48     begin(_Container& __cont) -> decltype(__cont.begin())
  49     { return __cont.begin(); }
  50
  51   /**
  52    *  @brief  Return an iterator pointing to the first element of
  53    *          the const container.
  54    *  @param  __cont  Container.
  55    */
  56   template<class _Container>
  57     inline auto
  58     begin(const _Container& __cont) -> decltype(__cont.begin())
  59     { return __cont.begin(); }
  60
  61   /**
  62    *  @brief  Return an iterator pointing to one past the last element of
  63    *          the container.
  64    *  @param  __cont  Container.
  65    */
  66   template<class _Container>
  67     inline auto
  68     end(_Container& __cont) -> decltype(__cont.end())
  69     { return __cont.end(); }
  70
  71   /**
  72    *  @brief  Return an iterator pointing to one past the last element of
  73    *          the const container.
  74    *  @param  __cont  Container.
  75    */
  76   template<class _Container>
  77     inline auto
  78     end(const _Container& __cont) -> decltype(__cont.end())
  79     { return __cont.end(); }
  80
  81   /**
  82    *  @brief  Return an iterator pointing to the first element of the array.
  83    *  @param  __arr  Array.
  84    */
  85   template<class _Tp, size_t _Nm>
  86     inline _Tp*
  87     begin(_Tp (&__arr)[_Nm])
  88     { return __arr; }
  89
  90   /**
  91    *  @brief  Return an iterator pointing to one past the last element
  92    *          of the array.
  93    *  @param  __arr  Array.
  94    */
  95   template<class _Tp, size_t _Nm>
  96     inline _Tp*
  97     end(_Tp (&__arr)[_Nm])
  98     { return __arr + _Nm; }
  99
 100 _GLIBCXX_END_NAMESPACE_VERSION
 101 } // namespace
 102
 103 #endif // __GXX_EXPERIMENTAL_CXX0X__
 104
 105 #endif // _GLIBCXX_RANGE_ACCESS_H