52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*!
|
|
@file
|
|
Defines `boost::hana::all_of`.
|
|
|
|
@copyright Louis Dionne 2013-2016
|
|
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_ALL_OF_HPP
|
|
#define BOOST_HANA_ALL_OF_HPP
|
|
|
|
#include <boost/hana/fwd/all_of.hpp>
|
|
|
|
#include <boost/hana/any_of.hpp>
|
|
#include <boost/hana/concept/searchable.hpp>
|
|
#include <boost/hana/config.hpp>
|
|
#include <boost/hana/core/dispatch.hpp>
|
|
#include <boost/hana/functional/compose.hpp>
|
|
#include <boost/hana/not.hpp>
|
|
|
|
|
|
BOOST_HANA_NAMESPACE_BEGIN
|
|
//! @cond
|
|
template <typename Xs, typename Pred>
|
|
constexpr auto all_of_t::operator()(Xs&& xs, Pred&& pred) const {
|
|
using S = typename hana::tag_of<Xs>::type;
|
|
using AllOf = BOOST_HANA_DISPATCH_IF(all_of_impl<S>,
|
|
hana::Searchable<S>::value
|
|
);
|
|
|
|
#ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
|
|
static_assert(hana::Searchable<S>::value,
|
|
"hana::all_of(xs, pred) requires 'xs' to be a Searchable");
|
|
#endif
|
|
|
|
return AllOf::apply(static_cast<Xs&&>(xs), static_cast<Pred&&>(pred));
|
|
}
|
|
//! @endcond
|
|
|
|
template <typename S, bool condition>
|
|
struct all_of_impl<S, when<condition>> : default_ {
|
|
template <typename Xs, typename Pred>
|
|
static constexpr auto apply(Xs&& xs, Pred&& pred) {
|
|
return hana::not_(hana::any_of(static_cast<Xs&&>(xs),
|
|
hana::compose(hana::not_, static_cast<Pred&&>(pred))));
|
|
}
|
|
};
|
|
BOOST_HANA_NAMESPACE_END
|
|
|
|
#endif // !BOOST_HANA_ALL_OF_HPP
|