diff options
Diffstat (limited to 'src/boost/libs/endian/test/endian_reverse_test.cpp')
-rw-r--r-- | src/boost/libs/endian/test/endian_reverse_test.cpp | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/boost/libs/endian/test/endian_reverse_test.cpp b/src/boost/libs/endian/test/endian_reverse_test.cpp new file mode 100644 index 000000000..fa0f9071b --- /dev/null +++ b/src/boost/libs/endian/test/endian_reverse_test.cpp @@ -0,0 +1,223 @@ +// Copyright 2019 Peter Dimov +// +// Distributed under the Boost Software License, Version 1.0. +// http://www.boost.org/LICENSE_1_0.txt + +#if defined(_MSC_VER) +# pragma warning( disable: 4309 ) // static_cast: truncation of constant value +#endif + +#include <boost/endian/conversion.hpp> +#include <boost/core/lightweight_test.hpp> +#include <boost/config.hpp> +#include <cstddef> + +template<class T, std::size_t N = sizeof(T)> struct test_value +{ +}; + +template<class T> struct test_value<T, 1> +{ + static const T v1 = static_cast<T>( 0x1F ); + static const T w1 = static_cast<T>( 0x1F ); + + static const T v2 = static_cast<T>( 0xF1 ); + static const T w2 = static_cast<T>( 0xF1 ); +}; + +template<class T> T const test_value<T, 1>::v1; +template<class T> T const test_value<T, 1>::w1; +template<class T> T const test_value<T, 1>::v2; +template<class T> T const test_value<T, 1>::w2; + +template<class T> struct test_value<T, 2> +{ + static const T v1 = static_cast<T>( 0x1F2E ); + static const T w1 = static_cast<T>( 0x2E1F ); + + static const T v2 = static_cast<T>( 0xF1E2 ); + static const T w2 = static_cast<T>( 0xE2F1 ); +}; + +template<class T> T const test_value<T, 2>::v1; +template<class T> T const test_value<T, 2>::w1; +template<class T> T const test_value<T, 2>::v2; +template<class T> T const test_value<T, 2>::w2; + +template<class T> struct test_value<T, 4> +{ + static const T v1 = static_cast<T>( 0x1F2E3D4C ); + static const T w1 = static_cast<T>( 0x4C3D2E1F ); + + static const T v2 = static_cast<T>( 0xF1E2D3C4 ); + static const T w2 = static_cast<T>( 0xC4D3E2F1 ); +}; + +template<class T> T const test_value<T, 4>::v1; +template<class T> T const test_value<T, 4>::w1; +template<class T> T const test_value<T, 4>::v2; +template<class T> T const test_value<T, 4>::w2; + +template<class T> struct test_value<T, 8> +{ + static const T v1 = static_cast<T>( 0x1F2E3D4C5B6A7988ull ); + static const T w1 = static_cast<T>( 0x88796A5B4C3D2E1Full ); + + static const T v2 = static_cast<T>( 0xF1E2D3C4B5A69788ull ); + static const T w2 = static_cast<T>( 0x8897A6B5C4D3E2F1ull ); +}; + +template<class T> T const test_value<T, 8>::v1; +template<class T> T const test_value<T, 8>::w1; +template<class T> T const test_value<T, 8>::v2; +template<class T> T const test_value<T, 8>::w2; + +#if defined(BOOST_HAS_INT128) + +template<class T> struct test_value<T, 16> +{ + static const T v1 = static_cast<T>( 0x1F2E3D4C5B6A7988ull ) << 64 | static_cast<T>( 0xF1E2D3C4B5A69780ull ); + static const T w1 = static_cast<T>( 0x8097A6B5C4D3E2F1ull ) << 64 | static_cast<T>( 0x88796A5B4C3D2E1Full ); + + static const T v2 = static_cast<T>( 0xF1E2D3C4B5A69788ull ) << 64 | static_cast<T>( 0x1F2E3D4C5B6A7980ull ); + static const T w2 = static_cast<T>( 0x80796A5B4C3D2E1Full ) << 64 | static_cast<T>( 0x8897A6B5C4D3E2F1ull ); +}; + +template<class T> T const test_value<T, 16>::v1; +template<class T> T const test_value<T, 16>::w1; +template<class T> T const test_value<T, 16>::v2; +template<class T> T const test_value<T, 16>::w2; + +#endif // #if defined(BOOST_HAS_INT128) + +template<class T> void test() +{ + using boost::endian::endian_reverse; + using boost::endian::endian_reverse_inplace; + + { + T t1 = test_value<T>::v1; + + T t2 = endian_reverse( t1 ); + BOOST_TEST_EQ( t2, test_value<T>::w1 ); + + T t3 = endian_reverse( t2 ); + BOOST_TEST_EQ( t3, t1 ); + + T t4 = t1; + + endian_reverse_inplace( t4 ); + BOOST_TEST_EQ( t4, test_value<T>::w1 ); + + endian_reverse_inplace( t4 ); + BOOST_TEST_EQ( t4, t1 ); + } + + { + T t1 = test_value<T>::v2; + + T t2 = endian_reverse( t1 ); + BOOST_TEST_EQ( t2, test_value<T>::w2 ); + + T t3 = endian_reverse( t2 ); + BOOST_TEST_EQ( t3, t1 ); + + T t4 = t1; + + endian_reverse_inplace( t4 ); + BOOST_TEST_EQ( t4, test_value<T>::w2 ); + + endian_reverse_inplace( t4 ); + BOOST_TEST_EQ( t4, t1 ); + } +} + +template<class T> void test_np() +{ + using boost::endian::endian_reverse; + using boost::endian::endian_reverse_inplace; + + { + T t1 = test_value<T>::v1; + + T t2 = endian_reverse( t1 ); + BOOST_TEST( t2 == test_value<T>::w1 ); + + T t3 = endian_reverse( t2 ); + BOOST_TEST( t3 == t1 ); + + T t4 = t1; + + endian_reverse_inplace( t4 ); + BOOST_TEST( t4 == test_value<T>::w1 ); + + endian_reverse_inplace( t4 ); + BOOST_TEST( t4 == t1 ); + } + + { + T t1 = test_value<T>::v2; + + T t2 = endian_reverse( t1 ); + BOOST_TEST( t2 == test_value<T>::w2 ); + + T t3 = endian_reverse( t2 ); + BOOST_TEST( t3 == t1 ); + + T t4 = t1; + + endian_reverse_inplace( t4 ); + BOOST_TEST( t4 == test_value<T>::w2 ); + + endian_reverse_inplace( t4 ); + BOOST_TEST( t4 == t1 ); + } +} + +int main() +{ + test<boost::int8_t>(); + test<boost::uint8_t>(); + + test<boost::int16_t>(); + test<boost::uint16_t>(); + + test<boost::int32_t>(); + test<boost::uint32_t>(); + + test<boost::int64_t>(); + test<boost::uint64_t>(); + + test<char>(); + test<unsigned char>(); + test<signed char>(); + + test<short>(); + test<unsigned short>(); + + test<int>(); + test<unsigned int>(); + + test<long>(); + test<unsigned long>(); + + test<long long>(); + test<unsigned long long>(); + +#if !defined(BOOST_NO_CXX11_CHAR16_T) + test<char16_t>(); +#endif + +#if !defined(BOOST_NO_CXX11_CHAR32_T) + test<char32_t>(); +#endif + +#if defined(BOOST_HAS_INT128) + + test_np<boost::int128_type>(); + test_np<boost::uint128_type>(); + +#endif + + return boost::report_errors(); +} |