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Sprout/sprout/weed/operator/logical_not.hpp
bolero-MURAKAMI f712788cce fix README
2013-03-24 17:07:20 +09:00

37 lines
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C++

#ifndef SPROUT_WEED_OPERATOR_LOGICAL_NOT_HPP
#define SPROUT_WEED_OPERATOR_LOGICAL_NOT_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/type_traits/remove_shallow_cvref.hpp>
#include <sprout/weed/expr/tag.hpp>
#include <sprout/weed/expr/make_expr.hpp>
#include <sprout/weed/traits/expr/expr_of.hpp>
#include <sprout/weed/traits/parser/is_parser.hpp>
namespace sprout {
namespace weed {
//
// operator!
//
template<
typename Arg,
typename = typename std::enable_if<
sprout::weed::traits::is_parser<
typename sprout::remove_shallow_cvref<Arg>::type
>::value
>::type
>
inline SPROUT_CONSTEXPR typename sprout::weed::traits::expr_of<
sprout::weed::tag::logical_not,
Arg
>::type operator!(Arg&& arg) {
return sprout::weed::make_expr<sprout::weed::tag::logical_not>(
sprout::forward<Arg>(arg)
);
}
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_OPERATOR_LOGICAL_NOT_HPP