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- // Copyright (c) 2006 Johan Rade
- // Copyright (c) 2011 Paul A. Bristow incorporated Boost.Math
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE_1_0.txt
- // or copy at http://www.boost.org/LICENSE_1_0.txt)
- //#ifdef _MSC_VER
- //# pragma warning(disable : 4127 4511 4512 4701 4702)
- //#endif
- #define BOOST_TEST_MAIN
- #include <limits>
- #include <locale>
- #include <string>
- #include <boost/lexical_cast.hpp>
- #include <boost/test/unit_test.hpp>
- #include <boost/math/special_functions/nonfinite_num_facets.hpp>
- #include <boost/math/special_functions/sign.hpp>
- #include <boost/math/special_functions/fpclassify.hpp>
- #include "almost_equal.ipp"
- #include "s_.ipp"
- namespace {
- // the anonymous namespace resolves ambiguities on platforms
- // with fpclassify etc functions at global scope
- using boost::lexical_cast;
- using namespace boost::math;
- using boost::math::signbit;
- using boost::math::changesign;
- using boost::math::isnan;
- //------------------------------------------------------------------------------
- template<class CharType, class ValType> void lexical_cast_test_impl();
- BOOST_AUTO_TEST_CASE(lexical_cast_test)
- {
- lexical_cast_test_impl<char, float>();
- lexical_cast_test_impl<char, double>();
- lexical_cast_test_impl<char, long double>();
- lexical_cast_test_impl<wchar_t, float>();
- lexical_cast_test_impl<wchar_t, double>();
- lexical_cast_test_impl<wchar_t, long double>();
- }
- template<class CharType, class ValType> void lexical_cast_test_impl()
- {
- if((std::numeric_limits<ValType>::has_infinity == 0) || (std::numeric_limits<ValType>::infinity() == 0))
- return;
- if((std::numeric_limits<ValType>::has_quiet_NaN == 0) || (std::numeric_limits<ValType>::quiet_NaN() == 0))
- return;
- std::locale old_locale;
- std::locale tmp_locale(old_locale,
- new nonfinite_num_put<CharType>(signed_zero));
- std::locale new_locale(tmp_locale, new nonfinite_num_get<CharType>);
- std::locale::global(new_locale);
- ValType a1 = static_cast<ValType>(0);
- ValType a2 = static_cast<ValType>(13);
- ValType a3 = std::numeric_limits<ValType>::infinity();
- ValType a4 = std::numeric_limits<ValType>::quiet_NaN();
- ValType a5 = std::numeric_limits<ValType>::signaling_NaN();
- ValType a6 = (changesign)(static_cast<ValType>(0));
- ValType a7 = static_cast<ValType>(-57);
- ValType a8 = -std::numeric_limits<ValType>::infinity();
- ValType a9 = (changesign)(std::numeric_limits<ValType>::quiet_NaN()); // -NaN
- ValType a10 = (changesign)(std::numeric_limits<ValType>::signaling_NaN()); // -NaN
- std::basic_string<CharType> s1 = S_("0");
- std::basic_string<CharType> s2 = S_("13");
- std::basic_string<CharType> s3 = S_("inf");
- std::basic_string<CharType> s4 = S_("nan");
- std::basic_string<CharType> s5 = S_("nan");
- std::basic_string<CharType> s6 = S_("-0");
- std::basic_string<CharType> s7 = S_("-57");
- std::basic_string<CharType> s8 = S_("-inf");
- std::basic_string<CharType> s9 = S_("-nan");
- std::basic_string<CharType> s10 = S_("-nan");
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a1) == s1);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a2) == s2);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a3) == s3);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a4) == s4);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a5) == s5);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a6) == s6);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a7) == s7);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a8) == s8);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a9) == s9);
- BOOST_CHECK(lexical_cast<std::basic_string<CharType> >(a10) == s10);
- BOOST_CHECK(lexical_cast<ValType>(s1) == a1);
- BOOST_CHECK(!(signbit)(lexical_cast<ValType>(s1)));
- BOOST_CHECK(lexical_cast<ValType>(s2) == a2);
- BOOST_CHECK(lexical_cast<ValType>(s3) == a3);
- BOOST_CHECK((isnan)(lexical_cast<ValType>(s4)));
- BOOST_CHECK(!(signbit)(lexical_cast<ValType>(s4)));
- BOOST_CHECK((isnan)(lexical_cast<ValType>(s5)));
- BOOST_CHECK(!(signbit)(lexical_cast<ValType>(s5)));
- BOOST_CHECK(lexical_cast<ValType>(a6) == a6);
- BOOST_CHECK((signbit)(lexical_cast<ValType>(s6)));
- BOOST_CHECK(lexical_cast<ValType>(s7) == a7);
- BOOST_CHECK(lexical_cast<ValType>(s8) == a8);
- BOOST_CHECK((isnan)(lexical_cast<ValType>(s9)));
- BOOST_CHECK((signbit)(lexical_cast<ValType>(s9)));
- BOOST_CHECK((isnan)(lexical_cast<ValType>(s10)));
- BOOST_CHECK((signbit)(lexical_cast<ValType>(s10)));
- std::locale::global(old_locale);
- }
- //------------------------------------------------------------------------------
- } // anonymous namespace
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