1
2// Copyright 2015-2017 Peter Dimov.
3//
4// Distributed under the Boost Software License, Version 1.0.
5//
6// See accompanying file LICENSE_1_0.txt or copy at
7// http://www.boost.org/LICENSE_1_0.txt
8
9
10#include <boost/mp11/algorithm.hpp>
11#include <boost/mp11/list.hpp>
12#include <boost/mp11/integral.hpp>
13#include <boost/mp11/utility.hpp>
14#include <boost/core/lightweight_test_trait.hpp>
15#include <type_traits>
16#include <tuple>
17
18struct X1 {};
19struct X2 {};
20struct X3 {};
21
22using boost::mp11::mp_bool;
23
24struct Q_is_odd
25{
26 template<class N> using fn = mp_bool<N::value % 2 != 0>;
27};
28
29int main()
30{
31 using boost::mp11::mp_list;
32 using boost::mp11::mp_remove_if_q;
33 using boost::mp11::mp_quote;
34
35 {
36 using L1 = mp_list<>;
37
38 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_remove_if_q<L1, mp_quote<std::is_const>>, L1>));
39
40 using L2 = mp_list<X1, X1 const, X1*, X2 const, X2*, X3*>;
41
42 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_remove_if_q<L2, mp_quote<std::is_volatile>>, L2>));
43 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_remove_if_q<L2, mp_quote<std::is_const>>, mp_list<X1, X1*, X2*, X3*>>));
44 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_remove_if_q<L2, mp_quote<std::is_pointer>>, mp_list<X1, X1 const, X2 const>>));
45 }
46
47 {
48 using L1 = std::tuple<>;
49
50 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_remove_if_q<L1, mp_quote<std::is_const>>, L1>));
51
52 using L2 = std::tuple<X1, X1 const, X1*, X2 const, X2*, X3*>;
53
54 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_remove_if_q<L2, mp_quote<std::is_volatile>>, L2>));
55 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_remove_if_q<L2, mp_quote<std::is_const>>, std::tuple<X1, X1*, X2*, X3*>>));
56 BOOST_TEST_TRAIT_TRUE((std::is_same<mp_remove_if_q<L2, mp_quote<std::is_pointer>>, std::tuple<X1, X1 const, X2 const>>));
57 }
58
59 using boost::mp11::mp_iota_c;
60 using boost::mp11::mp_size_t;
61
62 {
63 int const N = 12;
64 using L1 = mp_iota_c<N>;
65
66 using R1 = mp_remove_if_q<L1, Q_is_odd>;
67
68 BOOST_TEST_TRAIT_TRUE((std::is_same<R1, mp_list<mp_size_t<0>, mp_size_t<2>, mp_size_t<4>, mp_size_t<6>, mp_size_t<8>, mp_size_t<10>>>));
69 }
70
71 return boost::report_errors();
72}
73

source code of boost/libs/mp11/test/mp_remove_if_q.cpp