1234567891011121314151617181920212223242526272829303132333435 |
- // Copyright (c) 2009-2016 Vladimir Batov.
- // Use, modification and distribution are subject to the Boost Software License,
- // Version 1.0. See http://www.boost.org/LICENSE_1_0.txt.
- //[lexical_cast_headers1
- #include <boost/convert.hpp>
- #include <boost/convert/lexical_cast.hpp>
- #include <boost/detail/lightweight_test.hpp>
- using std::string;
- using boost::convert;
- using boost::lexical_cast;
- struct boost::cnv::by_default : boost::cnv::lexical_cast {};
- //]
- int
- main(int, char const* [])
- {
- //[lexical_cast_example1
- int i1 = lexical_cast<int>("123"); // Throws if the conversion fails.
- int i2 = convert<int>("123").value(); // Throws if the conversion fails.
- int i3 = convert<int>("uhm").value_or(-1); // Returns -1 if the conversion fails.
- string s1 = lexical_cast<string>(123);
- string s2 = convert<string>(123).value();
- BOOST_TEST(i1 == 123);
- BOOST_TEST(i2 == 123);
- BOOST_TEST(i3 == -1);
- BOOST_TEST(s1 == "123");
- BOOST_TEST(s2 == "123");
- //]
- return boost::report_errors();
- }
|