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//  -*- C++ -*-

// Copyright (C) 2010-2015 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

// .

/** @file bits/range_access.h

 *  This is an internal header file, included by other library headers.

 *  Do not attempt to use it directly. @headername{iterator}

 */

#ifndef _GLIBCXX_RANGE_ACCESS_H

#define _GLIBCXX_RANGE_ACCESS_H 1

#pragma GCC system_header

#if __cplusplus >= 201103L

#include 

namespace std _GLIBCXX_VISIBILITY(default)

{

_GLIBCXX_BEGIN_NAMESPACE_VERSION

  /**

   *  @brief  Return an iterator pointing to the first element of

   *          the container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    begin(_Container& __cont) -> decltype(__cont.begin())

    { return __cont.begin(); }

  /**

   *  @brief  Return an iterator pointing to the first element of

   *          the const container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    begin(const _Container& __cont) -> decltype(__cont.begin())

    { return __cont.begin(); }

  /**

   *  @brief  Return an iterator pointing to one past the last element of

   *          the container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    end(_Container& __cont) -> decltype(__cont.end())

    { return __cont.end(); }

  /**

   *  @brief  Return an iterator pointing to one past the last element of

   *          the const container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    end(const _Container& __cont) -> decltype(__cont.end())

    { return __cont.end(); }

  /**

   *  @brief  Return an iterator pointing to the first element of the array.

   *  @param  __arr  Array.

   */

  template

    inline _GLIBCXX14_CONSTEXPR _Tp*

    begin(_Tp (&__arr)[_Nm])

    { return __arr; }

  /**

   *  @brief  Return an iterator pointing to one past the last element

   *          of the array.

   *  @param  __arr  Array.

   */

  template

    inline _GLIBCXX14_CONSTEXPR _Tp*

    end(_Tp (&__arr)[_Nm])

    { return __arr + _Nm; }

#if __cplusplus >= 201402L

  template class valarray;

  // These overloads must be declared for cbegin and cend to use them.

  template _Tp* begin(valarray<_Tp>&);

  template const _Tp* begin(const valarray<_Tp>&);

  template _Tp* end(valarray<_Tp>&);

  template const _Tp* end(const valarray<_Tp>&);

  /**

   *  @brief  Return an iterator pointing to the first element of

   *          the const container.

   *  @param  __cont  Container.

   */

  template

    inline constexpr auto

    cbegin(const _Container& __cont) noexcept(noexcept(std::begin(__cont)))

      -> decltype(std::begin(__cont))

    { return std::begin(__cont); }

  /**

   *  @brief  Return an iterator pointing to one past the last element of

   *          the const container.

   *  @param  __cont  Container.

   */

  template

    inline constexpr auto

    cend(const _Container& __cont) noexcept(noexcept(std::end(__cont)))

      -> decltype(std::end(__cont))

    { return std::end(__cont); }

  /**

   *  @brief  Return a reverse iterator pointing to the last element of

   *          the container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    rbegin(_Container& __cont) -> decltype(__cont.rbegin())

    { return __cont.rbegin(); }

  /**

   *  @brief  Return a reverse iterator pointing to the last element of

   *          the const container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    rbegin(const _Container& __cont) -> decltype(__cont.rbegin())

    { return __cont.rbegin(); }

  /**

   *  @brief  Return a reverse iterator pointing one past the first element of

   *          the container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    rend(_Container& __cont) -> decltype(__cont.rend())

    { return __cont.rend(); }

  /**

   *  @brief  Return a reverse iterator pointing one past the first element of

   *          the const container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    rend(const _Container& __cont) -> decltype(__cont.rend())

    { return __cont.rend(); }

  /**

   *  @brief  Return a reverse iterator pointing to the last element of

   *          the array.

   *  @param  __arr  Array.

   */

  template

    inline reverse_iterator<_Tp*>

    rbegin(_Tp (&__arr)[_Nm])

    { return reverse_iterator<_Tp*>(__arr + _Nm); }

  /**

   *  @brief  Return a reverse iterator pointing one past the first element of

   *          the array.

   *  @param  __arr  Array.

   */

  template

    inline reverse_iterator<_Tp*>

    rend(_Tp (&__arr)[_Nm])

    { return reverse_iterator<_Tp*>(__arr); }

  /**

   *  @brief  Return a reverse iterator pointing to the last element of

   *          the initializer_list.

   *  @param  __il  initializer_list.

   */

  template

    inline reverse_iterator

    rbegin(initializer_list<_Tp> __il)

    { return reverse_iterator(__il.end()); }

  /**

   *  @brief  Return a reverse iterator pointing one past the first element of

   *          the initializer_list.

   *  @param  __il  initializer_list.

   */

  template

    inline reverse_iterator

    rend(initializer_list<_Tp> __il)

    { return reverse_iterator(__il.begin()); }

  /**

   *  @brief  Return a reverse iterator pointing to the last element of

   *          the const container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    crbegin(const _Container& __cont) -> decltype(std::rbegin(__cont))

    { return std::rbegin(__cont); }

  /**

   *  @brief  Return a reverse iterator pointing one past the first element of

   *          the const container.

   *  @param  __cont  Container.

   */

  template

    inline auto

    crend(const _Container& __cont) -> decltype(std::rend(__cont))

    { return std::rend(__cont); }

#endif // C++14

_GLIBCXX_END_NAMESPACE_VERSION

} // namespace

#endif // C++11

#endif // _GLIBCXX_RANGE_ACCESS_H