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Implement mp_all in terms of mp_count

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Peter Dimov
2021-03-23 02:55:45 +02:00
parent 598a40644e
commit ae4c83c8a6
1 changed files with 1 additions and 5 deletions
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6
include/boost/mp11/function.hpp
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@ -85,13 +85,9 @@ template<class... T> using mp_and = typename detail::mp_and_impl<mp_list<T...>>:
template<class... T> using mp_all = mp_bool< mp_count_if< mp_list<T...>, mp_not >::value == 0 >;
#elif defined( BOOST_MP11_HAS_FOLD_EXPRESSIONS )
template<class... T> using mp_all = mp_bool<(static_cast<bool>(T::value) && ...)>;
#else
template<class... T> using mp_all = mp_and<mp_to_bool<T>...>;
template<class... T> using mp_all = mp_bool< mp_count< mp_list<mp_to_bool<T>...>, mp_false >::value == 0 >;
#endif