1 // Unit test for boost::lexical_cast. 2 // 3 // See http://www.boost.org for most recent version, including documentation. 4 // 5 // Copyright Antony Polukhin, 2012-2020. 6 // 7 // Distributed under the Boost 8 // Software License, Version 1.0. (See accompanying file 9 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt). 10 11 #include <boost/config.hpp> 12 13 #if defined(__INTEL_COMPILER) 14 #pragma warning(disable: 193 383 488 981 1418 1419) 15 #elif defined(BOOST_MSVC) 16 #pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800) 17 #endif 18 19 #include <boost/lexical_cast.hpp> 20 #include <boost/core/lightweight_test.hpp> 21 #include <boost/range/iterator_range.hpp> 22 23 #include <cstdlib> 24 25 #include "escape_struct.hpp" 26 27 #ifndef BOOST_NO_EXCEPTIONS 28 #error "This test must be compiled with -DBOOST_NO_EXCEPTIONS" 29 #endif 30 31 namespace boost { 32 throw_exception(std::exception const &)33BOOST_NORETURN void throw_exception(std::exception const & ) { 34 static int state = 0; 35 ++ state; 36 37 EscapeStruct v(""); 38 switch(state) { 39 case 1: 40 lexical_cast<char>(v); // should call boost::throw_exception 41 std::exit(1); 42 case 2: 43 lexical_cast<unsigned char>(v); // should call boost::throw_exception 44 std::exit(2); 45 } 46 std::exit(boost::report_errors()); 47 } 48 49 } 50 test_exceptions_off()51void test_exceptions_off() { 52 using namespace boost; 53 EscapeStruct v(""); 54 55 v = lexical_cast<EscapeStruct>(100); 56 BOOST_TEST_EQ(lexical_cast<int>(v), 100); 57 BOOST_TEST_EQ(lexical_cast<unsigned int>(v), 100u); 58 59 v = lexical_cast<EscapeStruct>(0.0); 60 BOOST_TEST_EQ(lexical_cast<double>(v), 0.0); 61 62 BOOST_TEST_EQ(lexical_cast<short>(100), 100); 63 BOOST_TEST_EQ(lexical_cast<float>(0.0), 0.0); 64 65 lexical_cast<short>(700000); // should call boost::throw_exception 66 BOOST_TEST(false); 67 } 68 main()69int main() { 70 test_exceptions_off(); 71 72 return boost::report_errors(); 73 } 74 75