Edit: /usr/include/boost/hana/greater.hpp (2401B)
/*!
@file
Defines `boost::hana::greater`.
@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_GREATER_HPP
#define BOOST_HANA_GREATER_HPP
#include
#include
#include
#include
#include
#include
#include
#include
#include // required by fwd decl
#include
BOOST_HANA_NAMESPACE_BEGIN
//! @cond
template
constexpr decltype(auto) greater_t::operator()(X&& x, Y&& y) const {
using T = typename hana::tag_of::type;
using U = typename hana::tag_of::type;
using Greater = BOOST_HANA_DISPATCH_IF(decltype(greater_impl{}),
hana::Orderable::value &&
hana::Orderable::value
);
#ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
static_assert(hana::Orderable::value,
"hana::greater(x, y) requires 'x' to be Orderable");
static_assert(hana::Orderable::value,
"hana::greater(x, y) requires 'y' to be Orderable");
#endif
return Greater::apply(static_cast(x), static_cast(y));
}
//! @endcond
template
struct greater_impl> : default_ {
template
static constexpr decltype(auto) apply(X&& x, Y&& y) {
return hana::less(static_cast(y),
static_cast(x));
}
};
// Cross-type overload
template
struct greater_impl::value
>> {
using C = typename hana::common::type;
template
static constexpr decltype(auto) apply(X&& x, Y&& y) {
return hana::greater(hana::to(static_cast(x)),
hana::to(static_cast(y)));
}
};
BOOST_HANA_NAMESPACE_END
#endif // !BOOST_HANA_GREATER_HPP