Edit: /usr/include/boost/hana/less_equal.hpp (2485B)
/*!
@file
Defines `boost::hana::less_equal`.
@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_LESS_EQUAL_HPP
#define BOOST_HANA_LESS_EQUAL_HPP
#include
#include
#include
#include
#include
#include
#include
#include // required by fwd decl
#include
#include
#include
BOOST_HANA_NAMESPACE_BEGIN
//! @cond
template
constexpr auto less_equal_t::operator()(X&& x, Y&& y) const {
using T = typename hana::tag_of::type;
using U = typename hana::tag_of::type;
using LessEqual = BOOST_HANA_DISPATCH_IF(
decltype(less_equal_impl{}),
hana::Orderable::value &&
hana::Orderable::value
);
#ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
static_assert(hana::Orderable::value,
"hana::less_equal(x, y) requires 'x' to be Orderable");
static_assert(hana::Orderable::value,
"hana::less_equal(x, y) requires 'y' to be Orderable");
#endif
return LessEqual::apply(static_cast(x), static_cast(y));
}
//! @endcond
template
struct less_equal_impl> : default_ {
template
static constexpr decltype(auto) apply(X&& x, Y&& y) {
return hana::not_(hana::less(static_cast(y),
static_cast(x)));
}
};
// Cross-type overload
template
struct less_equal_impl::value
>> {
using C = typename hana::common::type;
template
static constexpr decltype(auto) apply(X&& x, Y&& y) {
return hana::less_equal(hana::to(static_cast(x)),
hana::to(static_cast(y)));
}
};
BOOST_HANA_NAMESPACE_END
#endif // !BOOST_HANA_LESS_EQUAL_HPP