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Add value list support to mp_min_element, mp_max_element. Fixes #87.

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This commit is contained in:
Peter Dimov
2023-12-17 20:37:56 +02:00
parent 5dfa20ca6d
commit ee5f1d620f
6 changed files with 245 additions and 1 deletions
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4
include/boost/mp11/detail/mp_fold.hpp
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@@ -10,6 +10,8 @@
#include <boost/mp11/detail/config.hpp>
#include <boost/mp11/detail/mp_defer.hpp>
#include <boost/mp11/detail/mp_rename.hpp>
#include <boost/mp11/detail/mp_list.hpp>
namespace boost
{
@@ -155,7 +157,7 @@ struct mp_fold_impl<L<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T...>, V, F>
} // namespace detail
template<class L, class V, template<class...> class F> using mp_fold = typename detail::mp_fold_impl<L, V, F>::type;
template<class L, class V, template<class...> class F> using mp_fold = typename detail::mp_fold_impl<mp_rename<L, mp_list>, V, F>::type;
template<class L, class V, class Q> using mp_fold_q = mp_fold<L, V, Q::template fn>;
} // namespace mp11

4
test/Jamfile
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@@ -143,9 +143,13 @@ run mp_with_index_cx.cpp ;
run mp_from_sequence.cpp ;
run mp_from_sequence_2.cpp ;
run mp_min_element.cpp ;
run mp_min_element_2.cpp ;
run mp_min_element_q.cpp ;
run mp_min_element_q_2.cpp ;
run mp_max_element.cpp ;
run mp_max_element_2.cpp ;
run mp_max_element_q.cpp ;
run mp_max_element_q_2.cpp ;
run mp_nth_element.cpp ;
run mp_nth_element_q.cpp ;
run mp_back.cpp ;

58
test/mp_max_element_2.cpp Normal file
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@@ -0,0 +1,58 @@
// Copyright 2017, 2023 Peter Dimov.
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/list.hpp>
#include <boost/mp11/integral.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/core/lightweight_test_trait.hpp>
template<auto... A> struct V1 {};
template<int... I> struct V2 {};
int main()
{
using boost::mp11::mp_max_element;
using boost::mp11::mp_less;
using boost::mp11::mp_int;
{
using L1 = V1<1>;
BOOST_TEST_TRAIT_SAME(mp_max_element<L1, mp_less>, mp_int<1>);
using L2 = V1<2, 4, 3, 1>;
BOOST_TEST_TRAIT_SAME(mp_max_element<L2, mp_less>, mp_int<4>);
using L3 = V1<2, 1, 2, 3>;
BOOST_TEST_TRAIT_SAME(mp_max_element<L3, mp_less>, mp_int<3>);
using L4 = V1<-1, 1u, -2, 2u>;
BOOST_TEST_TRAIT_SAME(mp_max_element<L4, mp_less>, std::integral_constant<unsigned, 2>);
}
{
using L1 = V2<1>;
BOOST_TEST_TRAIT_SAME(mp_max_element<L1, mp_less>, mp_int<1>);
using L2 = V2<2, 4, 3, 1>;
BOOST_TEST_TRAIT_SAME(mp_max_element<L2, mp_less>, mp_int<4>);
using L3 = V2<2, 1, 2, 3>;
BOOST_TEST_TRAIT_SAME(mp_max_element<L3, mp_less>, mp_int<3>);
using L4 = V2<-1, 1, -2, 2>;
BOOST_TEST_TRAIT_SAME(mp_max_element<L4, mp_less>, mp_int<2>);
}
return boost::report_errors();
}
#endif

61
test/mp_max_element_q_2.cpp Normal file
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@@ -0,0 +1,61 @@
// Copyright 2017, 2023 Peter Dimov.
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/list.hpp>
#include <boost/mp11/integral.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/core/lightweight_test_trait.hpp>
template<auto... A> struct V1 {};
template<int... I> struct V2 {};
int main()
{
using boost::mp11::mp_max_element_q;
using boost::mp11::mp_less;
using boost::mp11::mp_int;
using boost::mp11::mp_quote;
using Q = mp_quote<mp_less>;
{
using L1 = V1<1>;
BOOST_TEST_TRAIT_SAME(mp_max_element_q<L1, Q>, mp_int<1>);
using L2 = V1<2, 4, 3, 1>;
BOOST_TEST_TRAIT_SAME(mp_max_element_q<L2, Q>, mp_int<4>);
using L3 = V1<2, 1, 2, 3>;
BOOST_TEST_TRAIT_SAME(mp_max_element_q<L3, Q>, mp_int<3>);
using L4 = V1<-1, 1u, -2, 2u>;
BOOST_TEST_TRAIT_SAME(mp_max_element_q<L4, Q>, std::integral_constant<unsigned, 2>);
}
{
using L1 = V2<1>;
BOOST_TEST_TRAIT_SAME(mp_max_element_q<L1, Q>, mp_int<1>);
using L2 = V2<2, 4, 3, 1>;
BOOST_TEST_TRAIT_SAME(mp_max_element_q<L2, Q>, mp_int<4>);
using L3 = V2<2, 1, 2, 3>;
BOOST_TEST_TRAIT_SAME(mp_max_element_q<L3, Q>, mp_int<3>);
using L4 = V2<-1, 1, -2, 2>;
BOOST_TEST_TRAIT_SAME(mp_max_element_q<L4, Q>, mp_int<2>);
}
return boost::report_errors();
}
#endif

58
test/mp_min_element_2.cpp Normal file
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@@ -0,0 +1,58 @@
// Copyright 2017, 2023 Peter Dimov.
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/list.hpp>
#include <boost/mp11/integral.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/core/lightweight_test_trait.hpp>
template<auto... A> struct V1 {};
template<int... I> struct V2 {};
int main()
{
using boost::mp11::mp_min_element;
using boost::mp11::mp_less;
using boost::mp11::mp_int;
{
using L1 = V1<1>;
BOOST_TEST_TRAIT_SAME(mp_min_element<L1, mp_less>, mp_int<1>);
using L2 = V1<2, 4, 3, 1>;
BOOST_TEST_TRAIT_SAME(mp_min_element<L2, mp_less>, mp_int<1>);
using L3 = V1<2, 1, 2, 3>;
BOOST_TEST_TRAIT_SAME(mp_min_element<L3, mp_less>, mp_int<1>);
using L4 = V1<-1, 1u, -2, 2u>;
BOOST_TEST_TRAIT_SAME(mp_min_element<L4, mp_less>, mp_int<-2>);
}
{
using L1 = V2<1>;
BOOST_TEST_TRAIT_SAME(mp_min_element<L1, mp_less>, mp_int<1>);
using L2 = V2<2, 4, 3, 1>;
BOOST_TEST_TRAIT_SAME(mp_min_element<L2, mp_less>, mp_int<1>);
using L3 = V2<2, 1, 2, 3>;
BOOST_TEST_TRAIT_SAME(mp_min_element<L3, mp_less>, mp_int<1>);
using L4 = V2<-1, 1, -2, 2>;
BOOST_TEST_TRAIT_SAME(mp_min_element<L4, mp_less>, mp_int<-2>);
}
return boost::report_errors();
}
#endif

61
test/mp_min_element_q_2.cpp Normal file
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@@ -0,0 +1,61 @@
// Copyright 2017, 2023 Peter Dimov.
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/list.hpp>
#include <boost/mp11/integral.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/core/lightweight_test_trait.hpp>
template<auto... A> struct V1 {};
template<int... I> struct V2 {};
int main()
{
using boost::mp11::mp_min_element_q;
using boost::mp11::mp_less;
using boost::mp11::mp_int;
using boost::mp11::mp_quote;
using Q = mp_quote<mp_less>;
{
using L1 = V1<1>;
BOOST_TEST_TRAIT_SAME(mp_min_element_q<L1, Q>, mp_int<1>);
using L2 = V1<2, 4, 3, 1>;
BOOST_TEST_TRAIT_SAME(mp_min_element_q<L2, Q>, mp_int<1>);
using L3 = V1<2, 1, 2, 3>;
BOOST_TEST_TRAIT_SAME(mp_min_element_q<L3, Q>, mp_int<1>);
using L4 = V1<-1, 1u, -2, 2u>;
BOOST_TEST_TRAIT_SAME(mp_min_element_q<L4, Q>, mp_int<-2>);
}
{
using L1 = V2<1>;
BOOST_TEST_TRAIT_SAME(mp_min_element_q<L1, Q>, mp_int<1>);
using L2 = V2<2, 4, 3, 1>;
BOOST_TEST_TRAIT_SAME(mp_min_element_q<L2, Q>, mp_int<1>);
using L3 = V2<2, 1, 2, 3>;
BOOST_TEST_TRAIT_SAME(mp_min_element_q<L3, Q>, mp_int<1>);
using L4 = V2<-1, 1, -2, 2>;
BOOST_TEST_TRAIT_SAME(mp_min_element_q<L4, Q>, mp_int<-2>);
}
return boost::report_errors();
}
#endif