FM / hana

/usr/include/boost/hana

Name	Size	Mode	Actions
concept/	-	0755	rm
core/	-	0755	rm
detail/	-	0755	rm
experimental/	-	0755	rm
ext/	-	0755	rm
functional/	-	0755	rm
fwd/	-	0755	rm
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zip_with.hpp	2292	0644	edit dl rm

Edit: /usr/include/boost/hana/then.hpp (1688B)

/*!
@file
Defines `boost::hana::then`.

@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_THEN_HPP
#define BOOST_HANA_THEN_HPP

#include <boost/hana/fwd/then.hpp>

#include <boost/hana/chain.hpp>
#include <boost/hana/concept/monad.hpp>
#include <boost/hana/config.hpp>
#include <boost/hana/core/dispatch.hpp>
#include <boost/hana/functional/always.hpp>

BOOST_HANA_NAMESPACE_BEGIN
    //! @cond
    template <typename Before, typename Xs>
    constexpr decltype(auto) then_t::operator()(Before&& before, Xs&& xs) const {
        using M = typename hana::tag_of<Before>::type;
        using Then = BOOST_HANA_DISPATCH_IF(then_impl<M>,
            hana::Monad<M>::value &&
            hana::Monad<Xs>::value
        );

#ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
        static_assert(hana::Monad<M>::value,
        "hana::then(before, xs) requires 'before' to be a Monad");

static_assert(hana::Monad<Xs>::value,
        "hana::then(before, xs) requires 'xs' to be a Monad");
    #endif

return Then::apply(static_cast<Before&&>(before),
                           static_cast<Xs&&>(xs));
    }
    //! @endcond

template <typename M, bool condition>
    struct then_impl<M, when<condition>> : default_ {
        template <typename Xs, typename Ys>
        static constexpr decltype(auto) apply(Xs&& xs, Ys&& ys) {
            return hana::chain(static_cast<Xs&&>(xs),
                               hana::always(static_cast<Ys&&>(ys)));
        }
    };
BOOST_HANA_NAMESPACE_END

#endif // !BOOST_HANA_THEN_HPP

/*! @file Defines `boost::hana::then`. @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_THEN_HPP #define BOOST_HANA_THEN_HPP #include #include #include #include #include #include BOOST_HANA_NAMESPACE_BEGIN //! @cond template constexpr decltype(auto) then_t::operator()(Before&& before, Xs&& xs) const { using M = typename hana::tag_of::type; using Then = BOOST_HANA_DISPATCH_IF(then_impl, hana::Monad::value && hana::Monad::value ); #ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS static_assert(hana::Monad::value, "hana::then(before, xs) requires 'before' to be a Monad"); static_assert(hana::Monad::value, "hana::then(before, xs) requires 'xs' to be a Monad"); #endif return Then::apply(static_cast(before), static_cast(xs)); } //! @endcond template struct then_impl> : default_ { template static constexpr decltype(auto) apply(Xs&& xs, Ys&& ys) { return hana::chain(static_cast(xs), hana::always(static_cast(ys))); } }; BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_THEN_HPP