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Add support for value lists to mp_replace_first, mp_replace_second, mp_replace_third. Refs #53.

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This commit is contained in:
Peter Dimov
2023-05-15 18:05:02 +03:00
parent 8615aed8e8
commit 4545835a8b
5 changed files with 174 additions and 0 deletions
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27
include/boost/mp11/list.hpp
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@@ -299,6 +299,15 @@ template<template<class...> class L, class U1, class... U, class T> struct mp_re
using type = L<T, U...>;
};
#if defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
template<template<auto...> class L, auto A1, auto... A, class T> struct mp_replace_front_impl<L<A1, A...>, T>
{
using type = L<T::value, A...>;
};
#endif
} // namespace detail
template<class L, class T> using mp_replace_front = typename detail::mp_replace_front_impl<L, T>::type;
@@ -321,6 +330,15 @@ template<template<class...> class L, class U1, class U2, class... U, class T> st
using type = L<U1, T, U...>;
};
#if defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
template<template<auto...> class L, auto A1, auto A2, auto... A, class T> struct mp_replace_second_impl<L<A1, A2, A...>, T>
{
using type = L<A1, T::value, A...>;
};
#endif
} // namespace detail
template<class L, class T> using mp_replace_second = typename detail::mp_replace_second_impl<L, T>::type;
@@ -340,6 +358,15 @@ template<template<class...> class L, class U1, class U2, class U3, class... U, c
using type = L<U1, U2, T, U...>;
};
#if defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
template<template<auto...> class L, auto A1, auto A2, auto A3, auto... A, class T> struct mp_replace_third_impl<L<A1, A2, A3, A...>, T>
{
using type = L<A1, A2, T::value, A...>;
};
#endif
} // namespace detail
template<class L, class T> using mp_replace_third = typename detail::mp_replace_third_impl<L, T>::type;

3
test/Jamfile
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@@ -51,8 +51,11 @@ run mp_append.cpp ;
run mp_append_2.cpp ;
run mp_append_sf.cpp ;
run mp_replace_front.cpp ;
run mp_replace_front_2.cpp ;
run mp_replace_second.cpp ;
run mp_replace_second_2.cpp ;
run mp_replace_third.cpp ;
run mp_replace_third_2.cpp ;
run mp_apply_q.cpp ;
run mp_apply_q_sf.cpp ;
run mp_is_list.cpp ;

60
test/mp_replace_front_2.cpp Normal file
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@@ -0,0 +1,60 @@
// Copyright 2023 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/list.hpp>
#if !defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
#pragma message("Test skipped because BOOST_MP11_HAS_TEMPLATE_AUTO is not defined")
int main() {}
#else
#include <boost/mp11/integral.hpp>
#include <boost/core/lightweight_test_trait.hpp>
template<auto... A> struct L1 {};
template<int... I> struct L2 {};
int main()
{
using boost::mp11::mp_replace_front;
using boost::mp11::mp_replace_first;
using boost::mp11::mp_size_t;
using boost::mp11::mp_int;
//
BOOST_TEST_TRAIT_SAME(mp_replace_front<L1<0>, mp_size_t<0>>, L1<std::size_t(0)>);
BOOST_TEST_TRAIT_SAME(mp_replace_first<L1<0>, mp_size_t<0>>, L1<std::size_t(0)>);
BOOST_TEST_TRAIT_SAME(mp_replace_front<L1<0, 1>, mp_size_t<0>>, L1<std::size_t(0), 1>);
BOOST_TEST_TRAIT_SAME(mp_replace_first<L1<0, 1>, mp_size_t<0>>, L1<std::size_t(0), 1>);
BOOST_TEST_TRAIT_SAME(mp_replace_front<L1<0, 1, false>, mp_size_t<0>>, L1<std::size_t(0), 1, false>);
BOOST_TEST_TRAIT_SAME(mp_replace_first<L1<0, 1, false>, mp_size_t<0>>, L1<std::size_t(0), 1, false>);
BOOST_TEST_TRAIT_SAME(mp_replace_front<L1<0, 1, false, true>, mp_size_t<0>>, L1<std::size_t(0), 1, false, true>);
BOOST_TEST_TRAIT_SAME(mp_replace_first<L1<0, 1, false, true>, mp_size_t<0>>, L1<std::size_t(0), 1, false, true>);
//
BOOST_TEST_TRAIT_SAME(mp_replace_front<L2<0>, mp_int<-1>>, L2<-1>);
BOOST_TEST_TRAIT_SAME(mp_replace_first<L2<0>, mp_int<-1>>, L2<-1>);
BOOST_TEST_TRAIT_SAME(mp_replace_front<L2<0, 1>, mp_int<-1>>, L2<-1, 1>);
BOOST_TEST_TRAIT_SAME(mp_replace_first<L2<0, 1>, mp_int<-1>>, L2<-1, 1>);
BOOST_TEST_TRAIT_SAME(mp_replace_front<L2<0, 1, 2>, mp_int<-1>>, L2<-1, 1, 2>);
BOOST_TEST_TRAIT_SAME(mp_replace_first<L2<0, 1, 2>, mp_int<-1>>, L2<-1, 1, 2>);
BOOST_TEST_TRAIT_SAME(mp_replace_front<L2<0, 1, 2, 3>, mp_int<-1>>, L2<-1, 1, 2, 3>);
BOOST_TEST_TRAIT_SAME(mp_replace_first<L2<0, 1, 2, 3>, mp_int<-1>>, L2<-1, 1, 2, 3>);
//
return boost::report_errors();
}
#endif

43
test/mp_replace_second_2.cpp Normal file
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@@ -0,0 +1,43 @@
// Copyright 2023 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/list.hpp>
#if !defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
#pragma message("Test skipped because BOOST_MP11_HAS_TEMPLATE_AUTO is not defined")
int main() {}
#else
#include <boost/mp11/integral.hpp>
#include <boost/core/lightweight_test_trait.hpp>
template<auto... A> struct L1 {};
template<int... I> struct L2 {};
int main()
{
using boost::mp11::mp_replace_second;
using boost::mp11::mp_size_t;
using boost::mp11::mp_int;
//
BOOST_TEST_TRAIT_SAME(mp_replace_second<L1<0, 1>, mp_size_t<0>>, L1<0, std::size_t(0)>);
BOOST_TEST_TRAIT_SAME(mp_replace_second<L1<0, 1, false>, mp_size_t<0>>, L1<0, std::size_t(0), false>);
BOOST_TEST_TRAIT_SAME(mp_replace_second<L1<0, 1, false, true>, mp_size_t<0>>, L1<0, std::size_t(0), false, true>);
//
BOOST_TEST_TRAIT_SAME(mp_replace_second<L2<0, 1>, mp_int<-1>>, L2<0, -1>);
BOOST_TEST_TRAIT_SAME(mp_replace_second<L2<0, 1, 2>, mp_int<-1>>, L2<0, -1, 2>);
BOOST_TEST_TRAIT_SAME(mp_replace_second<L2<0, 1, 2, 3>, mp_int<-1>>, L2<0, -1, 2, 3>);
//
return boost::report_errors();
}
#endif

41
test/mp_replace_third_2.cpp Normal file
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@@ -0,0 +1,41 @@
// Copyright 2023 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/list.hpp>
#if !defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
#pragma message("Test skipped because BOOST_MP11_HAS_TEMPLATE_AUTO is not defined")
int main() {}
#else
#include <boost/mp11/integral.hpp>
#include <boost/core/lightweight_test_trait.hpp>
template<auto... A> struct L1 {};
template<int... I> struct L2 {};
int main()
{
using boost::mp11::mp_replace_third;
using boost::mp11::mp_size_t;
using boost::mp11::mp_int;
//
BOOST_TEST_TRAIT_SAME(mp_replace_third<L1<0, 1, false>, mp_size_t<0>>, L1<0, 1, std::size_t(0)>);
BOOST_TEST_TRAIT_SAME(mp_replace_third<L1<0, 1, false, true>, mp_size_t<0>>, L1<0, 1, std::size_t(0), true>);
//
BOOST_TEST_TRAIT_SAME(mp_replace_third<L2<0, 1, 2>, mp_int<-1>>, L2<0, 1, -1>);
BOOST_TEST_TRAIT_SAME(mp_replace_third<L2<0, 1, 2, 3>, mp_int<-1>>, L2<0, 1, -1, 3>);
//
return boost::report_errors();
}
#endif