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Add mp_list_c, mp_from_sequence

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This commit is contained in:
Peter Dimov
2017-10-14 18:20:29 +03:00
parent a7485736c7
commit 018d71bb72
7 changed files with 105 additions and 5 deletions
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11
include/boost/mp11/algorithm.hpp
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@@ -287,7 +287,7 @@ template<class L, std::size_t N> using mp_drop_c = typename detail::mp_drop_impl
template<class L, class N> using mp_drop = typename detail::mp_drop_impl<L, mp_repeat<mp_list<void>, N>>::type;
// mp_iota(_c)<N>
// mp_from_sequence<S>
namespace detail
{
@@ -298,12 +298,13 @@ template<template<class T, T... I> class S, class U, U... J> struct mp_from_sequ
using type = mp_list<std::integral_constant<U, J>...>;
};
template<class S> using mp_from_sequence = typename mp_from_sequence_impl<S>::type;
} // namespace detail
template<std::size_t N> using mp_iota_c = detail::mp_from_sequence<make_index_sequence<N>>;
template<class N> using mp_iota = detail::mp_from_sequence<make_integer_sequence<typename std::remove_const<decltype(N::value)>::type, N::value>>;
template<class S> using mp_from_sequence = typename detail::mp_from_sequence_impl<S>::type;
// mp_iota(_c)<N>
template<std::size_t N> using mp_iota_c = mp_from_sequence<make_index_sequence<N>>;
template<class N> using mp_iota = mp_from_sequence<make_integer_sequence<typename std::remove_const<decltype(N::value)>::type, N::value>>;
// mp_at(_c)<L, I>
namespace detail

4
include/boost/mp11/list.hpp
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@@ -13,12 +13,16 @@
#include <boost/mp11/detail/mp_append.hpp>
#include <boost/config.hpp>
#include <boost/detail/workaround.hpp>
#include <type_traits>
namespace boost
{
namespace mp11
{
// mp_list_c<T, I...>
template<class T, T... I> using mp_list_c = mp_list<std::integral_constant<T, I>...>;
// mp_is_list<L>
namespace detail
{