Files
boost_variant2/test/variant_ostream_insert.cpp
2022-01-31 17:55:26 +02:00

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909 B
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// Copyright 2021 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/variant2/variant.hpp>
#include <boost/core/lightweight_test.hpp>
#include <sstream>
#include <string>
using namespace boost::variant2;
template<class T> std::string to_string( T const& t )
{
std::ostringstream os;
os << t;
return os.str();
}
int main()
{
{
BOOST_TEST_EQ( to_string( monostate() ), "monostate" );
}
{
variant<monostate, int, float, std::string> v;
BOOST_TEST_EQ( to_string( v ), to_string( monostate() ) );
v = 1;
BOOST_TEST_EQ( to_string( v ), to_string( 1 ) );
v = 3.14f;
BOOST_TEST_EQ( to_string( v ), to_string( 3.14f ) );
v = "test";
BOOST_TEST_EQ( to_string( v ), to_string( "test" ) );
}
return boost::report_errors();
}