mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-27 00:53:44 +00:00
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2016 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_WEED_TRAITS_EXPR_IS_EXPR_HPP
|
|
#define SPROUT_WEED_TRAITS_EXPR_IS_EXPR_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/type_traits/integral_constant.hpp>
|
|
#include <sprout/weed/expr/expr_fwd.hpp>
|
|
|
|
namespace sprout {
|
|
namespace weed {
|
|
namespace traits {
|
|
//
|
|
// is_expr
|
|
//
|
|
template<typename T>
|
|
struct is_expr
|
|
: public sprout::false_type
|
|
{};
|
|
template<typename T>
|
|
struct is_expr<T const>
|
|
: public sprout::weed::traits::is_expr<T>
|
|
{};
|
|
template<typename T>
|
|
struct is_expr<T volatile>
|
|
: public sprout::weed::traits::is_expr<T>
|
|
{};
|
|
template<typename T>
|
|
struct is_expr<T const volatile>
|
|
: public sprout::weed::traits::is_expr<T>
|
|
{};
|
|
template<typename Tag, typename... Args>
|
|
struct is_expr<sprout::weed::expr<Tag, Args...> >
|
|
: public sprout::true_type
|
|
{};
|
|
} // namespace traits
|
|
} // namespace weed
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_WEED_TRAITS_EXPR_IS_EXPR_HPP
|