Edit: /usr/include/boost/hana/remove_if.hpp (1644B)
/*!
@file
Defines `boost::hana::remove_if`.
@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_REMOVE_IF_HPP
#define BOOST_HANA_REMOVE_IF_HPP
#include
#include
#include
#include
#include
#include
#include
BOOST_HANA_NAMESPACE_BEGIN
//! @cond
template
constexpr auto remove_if_t::operator()(Xs&& xs, Pred&& pred) const {
using M = typename hana::tag_of::type;
using RemoveIf = BOOST_HANA_DISPATCH_IF(remove_if_impl,
hana::MonadPlus::value
);
#ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
static_assert(hana::MonadPlus::value,
"hana::remove_if(xs, predicate) requires 'xs' to be a MonadPlus");
#endif
return RemoveIf::apply(static_cast(xs),
static_cast(pred));
}
//! @endcond
template
struct remove_if_impl> : default_ {
template
static constexpr auto apply(Xs&& xs, Pred&& pred) {
return hana::filter(static_cast(xs),
hana::compose(hana::not_, static_cast(pred)));
}
};
BOOST_HANA_NAMESPACE_END
#endif // !BOOST_HANA_REMOVE_IF_HPP