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Add mp_find, mp_find_if.

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This commit is contained in:
Peter Dimov
2015-07-15 18:11:16 +03:00
parent f1b097eb06
commit c9d1562cee
4 changed files with 109 additions and 0 deletions
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3
include/boost/mp11/algorithm.hpp
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@@ -613,7 +613,10 @@ template<template<class...> class L, class T1, class... T, template<class...> cl
template<class L, template<class...> class P> using mp_find_index_if = typename detail::mp_find_index_if_impl<L, P>::type;
// mp_find<L, V>
template<class L, class V> using mp_find = mp_drop<L, mp_find_index<L, V>>;
// mp_find_if<L, P>
template<class L, template<class...> class P> using mp_find_if = mp_drop<L, mp_find_index_if<L, P>>;
// mp_reverse<L>
// mp_fold<L, V, F>

2
test/Jamfile.v2
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@@ -46,6 +46,8 @@ run mp_partition.cpp : : : $(REQ) ;
run mp_sort.cpp : : : $(REQ) ;
run mp_find_index.cpp : : : $(REQ) ;
run mp_find_index_if.cpp : : : $(REQ) ;
run mp_find.cpp : : : $(REQ) ;
run mp_find_if.cpp : : : $(REQ) ;
# integral
run integral.cpp : : : $(REQ) ;

54
test/mp_find.cpp Normal file
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@@ -0,0 +1,54 @@
// Copyright 2015 Peter Dimov.
//
// Distributed under the Boost Software License, Version 1.0.
//
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/list.hpp>
#include <boost/mp11/integral.hpp>
#include <boost/core/lightweight_test_trait.hpp>
#include <type_traits>
#include <tuple>
#include <utility>
struct X1 {};
struct X2 {};
struct X3 {};
int main()
{
using boost::mp_list;
using boost::mp_find;
{
using L1 = mp_list<>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L1, void>, L1>));
using L2 = mp_list<X1, X2, X2, X3, X3, X3>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L2, void>, mp_list<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L2, X1>, L2>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L2, X2>, mp_list<X2, X2, X3, X3, X3>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L2, X3>, mp_list<X3, X3, X3>>));
}
{
using L3 = std::tuple<>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L3, void>, L3>));
using L4 = std::tuple<X1, X2, X2, X3, X3, X3>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L4, void>, std::tuple<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L4, X1>, L4>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L4, X2>, std::tuple<X2, X2, X3, X3, X3>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find<L4, X3>, std::tuple<X3, X3, X3>>));
}
return boost::report_errors();
}

50
test/mp_find_if.cpp Normal file
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@@ -0,0 +1,50 @@
// Copyright 2015 Peter Dimov.
//
// Distributed under the Boost Software License, Version 1.0.
//
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/list.hpp>
#include <boost/mp11/integral.hpp>
#include <boost/core/lightweight_test_trait.hpp>
#include <type_traits>
#include <tuple>
#include <utility>
struct X1 {};
int main()
{
using boost::mp_list;
using boost::mp_find_if;
{
using L1 = mp_list<>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L1, std::is_const>, L1>));
using L2 = mp_list<X1, X1 const, X1 const, X1*, X1*, X1*>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_volatile>, mp_list<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_const>, mp_list<X1 const, X1 const, X1*, X1*, X1*>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_pointer>, mp_list<X1*, X1*, X1*>>));
}
{
using L1 = std::tuple<>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L1, std::is_const>, L1>));
using L2 = std::tuple<X1, X1 const, X1 const, X1*, X1*, X1*>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_volatile>, std::tuple<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_const>, std::tuple<X1 const, X1 const, X1*, X1*, X1*>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_find_if<L2, std::is_pointer>, std::tuple<X1*, X1*, X1*>>));
}
return boost::report_errors();
}