ext-boost/boost/range/detail/begin.hpp
Lioncash db95c7fe31 Update boost to 1.68.0
Keeps the boost libraries up to date. This also silences informational
messages that get spammed throughout the build, such as:

"Info: Boost.Config is older than your compiler version - probably
nothing bad will happen - but you may wish to look for an update Boost
version.  Define BOOST_CONFIG_SUPPRESS_OUTDATED_MESSAGE to suppress this
message."

Which makes the compilation process a lot less noisy on Windows. It's
now much easier to actually spot warnings that occur.
2018-08-21 12:23:21 -04:00

84 lines
2.4 KiB
C++

// Boost.Range library
//
// Copyright Thorsten Ottosen 2003-2004. Use, modification and
// distribution is subject to the Boost Software License, Version
// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see http://www.boost.org/libs/range/
//
#ifndef BOOST_RANGE_DETAIL_BEGIN_HPP
#define BOOST_RANGE_DETAIL_BEGIN_HPP
#include <boost/config.hpp> // BOOST_MSVC
#include <boost/detail/workaround.hpp>
#include <boost/range/iterator.hpp>
#include <boost/range/detail/common.hpp>
namespace boost
{
namespace range_detail
{
template< typename T >
struct range_begin;
//////////////////////////////////////////////////////////////////////
// default
//////////////////////////////////////////////////////////////////////
template<>
struct range_begin<std_container_>
{
template< typename C >
BOOST_CONSTEXPR static BOOST_RANGE_DEDUCED_TYPENAME range_iterator<C>::type fun( C& c )
{
return c.begin();
};
};
//////////////////////////////////////////////////////////////////////
// pair
//////////////////////////////////////////////////////////////////////
template<>
struct range_begin<std_pair_>
{
template< typename P >
BOOST_CONSTEXPR static BOOST_RANGE_DEDUCED_TYPENAME range_iterator<P>::type fun( const P& p )
{
return p.first;
}
};
//////////////////////////////////////////////////////////////////////
// array
//////////////////////////////////////////////////////////////////////
template<>
struct range_begin<array_>
{
template<typename T>
BOOST_CONSTEXPR static BOOST_RANGE_DEDUCED_TYPENAME range_value<T>::type* fun(T& t)
{
return t;
}
};
} // namespace 'range_detail'
namespace range_adl_barrier
{
template< typename C >
BOOST_CONSTEXPR inline BOOST_RANGE_DEDUCED_TYPENAME range_iterator<C>::type
begin( C& c )
{
return range_detail::range_begin< BOOST_RANGE_DEDUCED_TYPENAME range_detail::range<C>::type >::fun( c );
}
}
} // namespace 'boost'
#endif