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b32b8144 | 1 | // Copyright Louis Dionne 2013-2017 |
7c673cae FG |
2 | // Distributed under the Boost Software License, Version 1.0. |
3 | // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) | |
4 | ||
5 | #include <boost/hana/functional/lockstep.hpp> | |
6 | #include <boost/hana/plus.hpp> | |
7 | namespace hana = boost::hana; | |
8 | ||
9 | ||
10 | constexpr int to_int(char c) { | |
11 | return static_cast<int>(c) - 48; | |
12 | } | |
13 | ||
14 | constexpr int increment(int i) { | |
15 | return i + 1; | |
16 | } | |
17 | ||
18 | static_assert(hana::lockstep(hana::plus)(to_int, increment)('3', 4) == 3 + 5, ""); | |
19 | ||
20 | int main() { } |