| 1 | // Copyright 2021 Peter Dimov |
|---|---|
| 2 | // Distributed under the Boost Software License, Version 1.0. |
| 3 | // https://www.boost.org/LICENSE_1_0.txt |
| 4 | |
| 5 | #include <boost/variant2/variant.hpp> |
| 6 | #include <boost/core/lightweight_test.hpp> |
| 7 | #include <sstream> |
| 8 | #include <string> |
| 9 | |
| 10 | using namespace boost::variant2; |
| 11 | |
| 12 | template<class T> std::string to_string( T const& t ) |
| 13 | { |
| 14 | std::ostringstream os; |
| 15 | |
| 16 | os << t; |
| 17 | |
| 18 | return os.str(); |
| 19 | } |
| 20 | |
| 21 | int main() |
| 22 | { |
| 23 | { |
| 24 | BOOST_TEST_EQ( to_string( monostate() ), "monostate"); |
| 25 | } |
| 26 | |
| 27 | { |
| 28 | variant<monostate, int, float, std::string> v; |
| 29 | |
| 30 | BOOST_TEST_EQ( to_string( v ), to_string( monostate() ) ); |
| 31 | |
| 32 | v = 1; |
| 33 | BOOST_TEST_EQ( to_string( v ), to_string( 1 ) ); |
| 34 | |
| 35 | v = 3.14f; |
| 36 | BOOST_TEST_EQ( to_string( v ), to_string( 3.14f ) ); |
| 37 | |
| 38 | v = "test"; |
| 39 | BOOST_TEST_EQ( to_string( v ), to_string( "test") ); |
| 40 | } |
| 41 | |
| 42 | return boost::report_errors(); |
| 43 | } |
| 44 |