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
accessors.hpp	1513	0644	edit dl rm
adapt_adt.hpp	422	0644	edit dl rm
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adjust.hpp	1698	0644	edit dl rm
adjust_if.hpp	2515	0644	edit dl rm
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basic_tuple.hpp	9455	0644	edit dl rm
bool.hpp	9747	0644	edit dl rm
cartesian_product.hpp	3860	0644	edit dl rm
chain.hpp	1488	0644	edit dl rm
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concept.hpp	1301	0644	edit dl rm
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contains.hpp	1560	0644	edit dl rm
core.hpp	610	0644	edit dl rm
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first.hpp	1242	0644	edit dl rm
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functional.hpp	1186	0644	edit dl rm
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group.hpp	5543	0644	edit dl rm
hash.hpp	3572	0644	edit dl rm
if.hpp	1834	0644	edit dl rm
index_if.hpp	3485	0644	edit dl rm
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integral_constant.hpp	389	0644	edit dl rm
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lift.hpp	1500	0644	edit dl rm
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zip_shortest.hpp	1604	0644	edit dl rm
zip_shortest_with.hpp	2116	0644	edit dl rm
zip_with.hpp	2292	0644	edit dl rm

Edit: /usr/include/boost/hana/adjust_if.hpp (2515B)

/*!
@file
Defines `boost::hana::adjust_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_ADJUST_IF_HPP
#define BOOST_HANA_ADJUST_IF_HPP

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

#include <boost/hana/bool.hpp>
#include <boost/hana/concept/functor.hpp>
#include <boost/hana/config.hpp>
#include <boost/hana/core/dispatch.hpp>
#include <boost/hana/if.hpp>
#include <boost/hana/transform.hpp>

BOOST_HANA_NAMESPACE_BEGIN
    //! @cond
    template <typename Xs, typename Pred, typename F>
    constexpr auto adjust_if_t::operator()(Xs&& xs, Pred const& pred, F const& f) const {
        using S = typename hana::tag_of<Xs>::type;
        using AdjustIf = BOOST_HANA_DISPATCH_IF(adjust_if_impl<S>,
            hana::Functor<S>::value
        );

#ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
        static_assert(hana::Functor<S>::value,
        "hana::adjust_if(xs, pred, f) requires 'xs' to be a Functor");
    #endif

return AdjustIf::apply(static_cast<Xs&&>(xs), pred, f);
    }
    //! @endcond

namespace detail {
        template <typename Pred, typename F>
        struct apply_if {
            Pred const& pred;
            F const& f;

template <typename X>
            constexpr decltype(auto) helper(bool cond, X&& x) const
            { return cond ? f(static_cast<X&&>(x)) : static_cast<X&&>(x); }

template <typename X>
            constexpr decltype(auto) helper(hana::true_, X&& x) const
            { return f(static_cast<X&&>(x)); }

template <typename X>
            constexpr decltype(auto) helper(hana::false_, X&& x) const
            { return static_cast<X&&>(x); }

template <typename X>
            constexpr decltype(auto) operator()(X&& x) const {
                auto cond = hana::if_(pred(x), hana::true_c, hana::false_c);
                return this->helper(cond, static_cast<X&&>(x));
            }
        };
    }

template <typename Fun, bool condition>
    struct adjust_if_impl<Fun, when<condition>> : default_ {
        template <typename Xs, typename Pred, typename F>
        static constexpr auto apply(Xs&& xs, Pred const& pred, F const& f) {
            return hana::transform(static_cast<Xs&&>(xs),
                                   detail::apply_if<Pred, F>{pred, f});
        }
    };
BOOST_HANA_NAMESPACE_END

#endif // !BOOST_HANA_ADJUST_IF_HPP

/*! @file Defines `boost::hana::adjust_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_ADJUST_IF_HPP #define BOOST_HANA_ADJUST_IF_HPP #include #include #include #include #include #include #include BOOST_HANA_NAMESPACE_BEGIN //! @cond template constexpr auto adjust_if_t::operator()(Xs&& xs, Pred const& pred, F const& f) const { using S = typename hana::tag_of::type; using AdjustIf = BOOST_HANA_DISPATCH_IF(adjust_if_impl, hana::Functor::value ); #ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS static_assert(hana::Functor::value, "hana::adjust_if(xs, pred, f) requires 'xs' to be a Functor"); #endif return AdjustIf::apply(static_cast(xs), pred, f); } //! @endcond namespace detail { template struct apply_if { Pred const& pred; F const& f; template constexpr decltype(auto) helper(bool cond, X&& x) const { return cond ? f(static_cast(x)) : static_cast(x); } template constexpr decltype(auto) helper(hana::true_, X&& x) const { return f(static_cast(x)); } template constexpr decltype(auto) helper(hana::false_, X&& x) const { return static_cast(x); } template constexpr decltype(auto) operator()(X&& x) const { auto cond = hana::if_(pred(x), hana::true_c, hana::false_c); return this->helper(cond, static_cast(x)); } }; } template struct adjust_if_impl> : default_ { template static constexpr auto apply(Xs&& xs, Pred const& pred, F const& f) { return hana::transform(static_cast(xs), detail::apply_if{pred, f}); } }; BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_ADJUST_IF_HPP