ceph/src/boost/boost/hana/all_of.hpp

   1 /*!
   2 @file
   3 Defines `boost::hana::all_of`.
   4
   5 @copyright Louis Dionne 2013-2017
   6 Distributed under the Boost Software License, Version 1.0.
   7 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   8  */
   9
  10 #ifndef BOOST_HANA_ALL_OF_HPP
  11 #define BOOST_HANA_ALL_OF_HPP
  12
  13 #include <boost/hana/fwd/all_of.hpp>
  14
  15 #include <boost/hana/any_of.hpp>
  16 #include <boost/hana/concept/searchable.hpp>
  17 #include <boost/hana/config.hpp>
  18 #include <boost/hana/core/dispatch.hpp>
  19 #include <boost/hana/functional/compose.hpp>
  20 #include <boost/hana/not.hpp>
  21
  22
  23 BOOST_HANA_NAMESPACE_BEGIN
  24     //! @cond
  25     template <typename Xs, typename Pred>
  26     constexpr auto all_of_t::operator()(Xs&& xs, Pred&& pred) const {
  27         using S = typename hana::tag_of<Xs>::type;
  28         using AllOf = BOOST_HANA_DISPATCH_IF(all_of_impl<S>,
  29             hana::Searchable<S>::value
  30         );
  31
  32     #ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
  33         static_assert(hana::Searchable<S>::value,
  34         "hana::all_of(xs, pred) requires 'xs' to be a Searchable");
  35     #endif
  36
  37         return AllOf::apply(static_cast<Xs&&>(xs), static_cast<Pred&&>(pred));
  38     }
  39     //! @endcond
  40
  41     template <typename S, bool condition>
  42     struct all_of_impl<S, when<condition>> : default_ {
  43         template <typename Xs, typename Pred>
  44         static constexpr auto apply(Xs&& xs, Pred&& pred) {
  45             return hana::not_(hana::any_of(static_cast<Xs&&>(xs),
  46                     hana::compose(hana::not_, static_cast<Pred&&>(pred))));
  47         }
  48     };
  49 BOOST_HANA_NAMESPACE_END
  50
  51 #endif // !BOOST_HANA_ALL_OF_HPP