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add has_sprout_get metafunction, update copyright

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bolero-MURAKAMI 2019-01-07 17:47:17 +09:00
parent 26299dad18
commit ea06f92565
2855 changed files with 3032 additions and 2854 deletions
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56
sprout/container/has_sprout_end.hpp Normal file
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/*=============================================================================
Copyright (c) 2011-2019 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_HAS_SPROUT_END_HPP
#define SPROUT_CONTAINER_HAS_SPROUT_END_HPP
#include <utility>
#include <sprout/config.hpp>
#include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type_traits/identity.hpp>
#include <sprout/container/end.hpp>
namespace sprout {
//
// has_sprout_end
//
namespace detail {
template<typename T>
struct has_sprout_end_test {
public:
template<
typename U = T,
typename = typename sprout::identity<decltype(sprout::end(std::declval<U>()))>::type
>
static sprout::true_type test(int);
static sprout::false_type test(...);
};
#if defined(_MSC_VER) && (_MSC_VER > 1900)
template<typename T, typename Base_ = typename sprout::identity<decltype(sprout::detail::has_sprout_end_test<T>::test(0))>::type>
struct has_sprout_end
: public Base_
{};
#else
template<typename T>
struct has_sprout_end
: public sprout::identity<decltype(sprout::detail::has_sprout_end_test<T>::test(0))>::type
{};
#endif
} // namespace detail
template<typename T>
struct has_sprout_end
: public sprout::detail::has_sprout_end<T>
{};
#if SPROUT_USE_VARIABLE_TEMPLATES
template<typename T>
SPROUT_STATIC_CONSTEXPR bool has_sprout_end_v = sprout::has_sprout_end<T>::value;
#endif // #if SPROUT_USE_VARIABLE_TEMPLATES
} // namespace sprout
#endif // #ifndef SPROUT_CONTAINER_HAS_SPROUT_END_HPP