// Boost.Convert test and usage example // Copyright (c) 2009-2014 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. #include <boost/convert.hpp> #include <boost/convert/stream.hpp> #include <boost/detail/lightweight_test.hpp> #ifdef ONLY_FOR_DEMONSTRATION_PURPOSES //[default_converter_declaration_simple struct boost::cnv::by_default : public boost::cnv::cstream {}; //] #endif //[default_converter_declaration_formatted struct boost::cnv::by_default : public boost::cnv::cstream { by_default() { (*this)(std::uppercase)(std::hex); } }; //] int main(int, char const* []) { //[default_converter_example1 // No explicit converter provided. boost::cnv::by_default is used. int i = boost::convert<int>("F").value_or(-1); std::string s = boost::convert<std::string>(255).value_or("bad"); // 'i' and 's' are converted using boost::cnv::cstream // with std::uppercase and std::hex formatting applied. BOOST_TEST(i == 15); // 15(10) = F(16) BOOST_TEST(s == "FF"); // 255(10) = FF(16) //] return boost::report_errors(); }