/*!
|
@file
|
Defines `boost::hana::default_` and `boost::hana::is_default`.
|
|
@copyright Louis Dionne 2013-2017
|
Distributed under the Boost Software License, Version 1.0.
|
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
|
*/
|
|
#ifndef BOOST_HANA_CORE_DEFAULT_HPP
|
#define BOOST_HANA_CORE_DEFAULT_HPP
|
|
#include <boost/hana/fwd/core/default.hpp>
|
|
#include <boost/hana/config.hpp>
|
|
#include <type_traits>
|
|
|
BOOST_HANA_NAMESPACE_BEGIN
|
template <typename Method, typename>
|
struct is_default : std::false_type { };
|
|
template <typename Method>
|
struct is_default<Method, decltype((void)
|
static_cast<default_>(*(Method*)0)
|
)>
|
: std::true_type
|
{ };
|
BOOST_HANA_NAMESPACE_END
|
|
#endif // !BOOST_HANA_CORE_DEFAULT_HPP
|
