]>
Commit | Line | Data |
---|---|---|
f51cf556 | 1 | // Copyright Louis Dionne 2013-2022 |
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/assert.hpp> | |
6 | #include <boost/hana/functional/overload.hpp> | |
7 | ||
8 | #include <iostream> | |
9 | #include <string> | |
10 | namespace hana = boost::hana; | |
11 | ||
12 | ||
13 | auto on_string = [](std::string const& s) { | |
14 | std::cout << "matched std::string: " << s << std::endl; | |
15 | return s; | |
16 | }; | |
17 | ||
18 | auto on_int = [](int i) { | |
19 | std::cout << "matched int: " << i << std::endl; | |
20 | return i; | |
21 | }; | |
22 | ||
23 | auto f = hana::overload(on_int, on_string); | |
24 | ||
25 | int main() { | |
26 | // prints "matched int: 1" | |
27 | BOOST_HANA_RUNTIME_CHECK(f(1) == 1); | |
28 | ||
29 | // prints "matched std::string: abcdef" | |
30 | BOOST_HANA_RUNTIME_CHECK(f("abcdef") == std::string{"abcdef"}); | |
31 | } |