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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/lambda2.hpp>
#include <boost/core/lightweight_test.hpp>
#include <sstream>
#include <string>
template<class T> T from_string_1( std::string const& s )
{
using namespace boost::lambda2;
std::istringstream is( s );
T t{};
( std::ref( is ) >> _1 )( t );
return t;
}
template<class T> T from_string_2( std::string const& s )
{
using namespace boost::lambda2;
std::istringstream is( s );
T t{};
( is >> _1 )( t );
return t;
}
int main()
{
BOOST_TEST_EQ( from_string_1<int>( "123" ), 123 );
BOOST_TEST_EQ( from_string_2<int>( "456" ), 456 );
return boost::report_errors();
}
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