Sprout/sprout/weed/traits/expr/expr_of.hpp
2017-07-29 14:20:01 +09:00

38 lines
1.2 KiB
C++

/*=============================================================================
Copyright (c) 2011-2017 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_EXPR_OF_HPP
#define SPROUT_WEED_TRAITS_EXPR_EXPR_OF_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/type_traits/identity.hpp>
#include <sprout/weed/expr/expr_fwd.hpp>
#include <sprout/weed/traits/expr/terminal_or_expr_of.hpp>
namespace sprout {
namespace weed {
namespace traits {
//
// expr_of
//
template<typename Tag, typename... Args>
struct expr_of
: public sprout::identity<
sprout::weed::expr<
Tag,
typename sprout::weed::traits::terminal_or_expr_of<
typename std::remove_reference<Args>::type
>::type...
>
>
{};
} // namespace traits
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_TRAITS_EXPR_EXPR_OF_HPP