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1 | |
2 | // Copyright 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 | #include <boost/config.hpp> | |
10 | ||
11 | #if defined( BOOST_NO_CXX14_CONSTEXPR ) | |
12 | ||
13 | int main() {} | |
14 | ||
15 | #else | |
16 | ||
17 | #include <boost/mp11/algorithm.hpp> | |
18 | #include <boost/core/lightweight_test.hpp> | |
19 | #include <boost/config.hpp> | |
11fdf7f2 | 20 | #include <boost/config/workaround.hpp> |
b32b8144 FG |
21 | |
22 | using boost::mp11::mp_size_t; | |
23 | using boost::mp11::mp_with_index; | |
24 | ||
25 | struct F | |
26 | { | |
27 | template<std::size_t I> constexpr std::size_t operator()( mp_size_t<I> ) const | |
28 | { | |
29 | return I; | |
30 | } | |
31 | }; | |
32 | ||
33 | #define STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__) | |
34 | ||
35 | int main() | |
36 | { | |
37 | constexpr std::size_t i = mp_with_index<64>( 57, F{} ); | |
38 | STATIC_ASSERT( i == 57 ); | |
39 | } | |
40 | ||
41 | #endif |