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Sprout/sprout/container/begin.hpp

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/*=============================================================================
Copyright (c) 2011-2014 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under 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)
=============================================================================*/
#ifndef SPROUT_CONTAINER_BEGIN_HPP
#define SPROUT_CONTAINER_BEGIN_HPP
#include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp>
#include <sprout/container/container_traits.hpp>
#include <sprout/container/container_range_traits.hpp>
#include <sprout/adl/not_found.hpp>
namespace sprout_adl {
sprout::not_found_via_adl range_begin(...);
} // namespace sprout_adl
namespace sprout {
namespace container_detail {
template<typename Container>
inline SPROUT_CONSTEXPR typename sprout::container_traits<Container>::iterator
range_begin(Container& cont) {
return sprout::container_range_traits<Container>::range_begin(cont);
}
template<typename Container>
inline SPROUT_CONSTEXPR typename sprout::container_traits<Container const>::iterator
range_begin(Container const& cont) {
return sprout::container_range_traits<Container>::range_begin(cont);
}
} // namespace container_detail
//
// begin
//
// effect:
// ADL callable range_begin(cont) -> range_begin(cont)
// otherwise -> sprout::container_range_traits<Container>::range_begin(cont)
// [default]
// cont.begin()
//
template<typename Container>
inline SPROUT_CONSTEXPR typename sprout::container_traits<Container>::iterator
begin(Container& cont) {
using sprout::container_detail::range_begin;
using sprout_adl::range_begin;
return range_begin(cont);
}
template<typename Container>
inline SPROUT_CONSTEXPR typename sprout::container_traits<Container const>::iterator
begin(Container const& cont) {
using sprout::container_detail::range_begin;
using sprout_adl::range_begin;
return range_begin(cont);
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR typename sprout::container_traits<T[N]>::iterator
begin(T (& arr)[N]) {
return sprout::container_detail::range_begin(arr);
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR typename sprout::container_traits<T const[N]>::iterator
begin(T const (& arr)[N]) {
return sprout::container_detail::range_begin(arr);
}
//
// cbegin
//
template<typename Container>
inline SPROUT_CONSTEXPR typename sprout::container_traits<Container const>::iterator
cbegin(Container const& cont) {
return sprout::begin(cont);
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR typename sprout::container_traits<T const[N]>::iterator
cbegin(T const (& arr)[N]) {
return sprout::begin(arr);
}
} // namespace sprout
#endif // #ifndef SPROUT_CONTAINER_BEGIN_HPP