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- // buffer_test.cpp -------------------------------------------------------------------//
- // Copyright Beman Dawes 2014
- // Distributed under the Boost Software License, Version 1.0.
- // See http://www.boost.org/LICENSE_1_0.txt
- // See library home page at http://www.boost.org/libs/endian
- //--------------------------------------------------------------------------------------//
- #include <boost/endian/detail/disable_warnings.hpp>
- #include <boost/endian/buffers.hpp>
- #include <boost/detail/lightweight_main.hpp>
- #include <boost/core/lightweight_test.hpp>
- #include <boost/cstdint.hpp>
- #include <iostream>
- #include <sstream>
- #include <limits>
- using namespace boost::endian;
- using std::cout;
- using std::endl;
- namespace
- {
- // check_size ------------------------------------------------------------//
- void check_size()
- {
- BOOST_TEST_EQ(sizeof(big_int8_buf_t), 1u);
- BOOST_TEST_EQ(sizeof(big_int16_buf_t), 2u);
- BOOST_TEST_EQ(sizeof(big_int24_buf_t), 3u);
- BOOST_TEST_EQ(sizeof(big_int32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(big_int40_buf_t), 5u);
- BOOST_TEST_EQ(sizeof(big_int48_buf_t), 6u);
- BOOST_TEST_EQ(sizeof(big_int56_buf_t), 7u);
- BOOST_TEST_EQ(sizeof(big_int64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(big_uint8_buf_t), 1u);
- BOOST_TEST_EQ(sizeof(big_uint16_buf_t), 2u);
- BOOST_TEST_EQ(sizeof(big_uint24_buf_t), 3u);
- BOOST_TEST_EQ(sizeof(big_uint32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(big_uint40_buf_t), 5u);
- BOOST_TEST_EQ(sizeof(big_uint48_buf_t), 6u);
- BOOST_TEST_EQ(sizeof(big_uint56_buf_t), 7u);
- BOOST_TEST_EQ(sizeof(big_uint64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(big_float32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(big_float64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(little_int8_buf_t), 1u);
- BOOST_TEST_EQ(sizeof(little_int16_buf_t), 2u);
- BOOST_TEST_EQ(sizeof(little_int24_buf_t), 3u);
- BOOST_TEST_EQ(sizeof(little_int32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(little_int40_buf_t), 5u);
- BOOST_TEST_EQ(sizeof(little_int48_buf_t), 6u);
- BOOST_TEST_EQ(sizeof(little_int56_buf_t), 7u);
- BOOST_TEST_EQ(sizeof(little_int64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(little_uint8_buf_t), 1u);
- BOOST_TEST_EQ(sizeof(little_uint16_buf_t), 2u);
- BOOST_TEST_EQ(sizeof(little_uint24_buf_t), 3u);
- BOOST_TEST_EQ(sizeof(little_uint32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(little_uint40_buf_t), 5u);
- BOOST_TEST_EQ(sizeof(little_uint48_buf_t), 6u);
- BOOST_TEST_EQ(sizeof(little_uint56_buf_t), 7u);
- BOOST_TEST_EQ(sizeof(little_uint64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(little_float32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(little_float64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(native_int8_buf_t), 1u);
- BOOST_TEST_EQ(sizeof(native_int16_buf_t), 2u);
- BOOST_TEST_EQ(sizeof(native_int24_buf_t), 3u);
- BOOST_TEST_EQ(sizeof(native_int32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(native_int40_buf_t), 5u);
- BOOST_TEST_EQ(sizeof(native_int48_buf_t), 6u);
- BOOST_TEST_EQ(sizeof(native_int56_buf_t), 7u);
- BOOST_TEST_EQ(sizeof(native_int64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(native_uint8_buf_t), 1u);
- BOOST_TEST_EQ(sizeof(native_uint16_buf_t), 2u);
- BOOST_TEST_EQ(sizeof(native_uint24_buf_t), 3u);
- BOOST_TEST_EQ(sizeof(native_uint32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(native_uint40_buf_t), 5u);
- BOOST_TEST_EQ(sizeof(native_uint48_buf_t), 6u);
- BOOST_TEST_EQ(sizeof(native_uint56_buf_t), 7u);
- BOOST_TEST_EQ(sizeof(native_uint64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(native_float32_buf_t), 4u);
- BOOST_TEST_EQ(sizeof(native_float64_buf_t), 8u);
- BOOST_TEST_EQ(sizeof(big_int8_buf_at), 1u);
- BOOST_TEST_EQ(sizeof(big_int16_buf_at), 2u);
- BOOST_TEST_EQ(sizeof(big_int32_buf_at), 4u);
- BOOST_TEST_EQ(sizeof(big_int64_buf_at), 8u);
- BOOST_TEST_EQ(sizeof(big_uint8_buf_at), 1u);
- BOOST_TEST_EQ(sizeof(big_uint16_buf_at), 2u);
- BOOST_TEST_EQ(sizeof(big_uint32_buf_at), 4u);
- BOOST_TEST_EQ(sizeof(big_uint64_buf_at), 8u);
- BOOST_TEST_EQ(sizeof(big_float32_buf_at), 4u);
- BOOST_TEST_EQ(sizeof(big_float64_buf_at), 8u);
- BOOST_TEST_EQ(sizeof(little_int8_buf_at), 1u);
- BOOST_TEST_EQ(sizeof(little_int16_buf_at), 2u);
- BOOST_TEST_EQ(sizeof(little_int32_buf_at), 4u);
- BOOST_TEST_EQ(sizeof(little_int64_buf_at), 8u);
- BOOST_TEST_EQ(sizeof(little_uint8_buf_at), 1u);
- BOOST_TEST_EQ(sizeof(little_uint16_buf_at), 2u);
- BOOST_TEST_EQ(sizeof(little_uint32_buf_at), 4u);
- BOOST_TEST_EQ(sizeof(little_uint64_buf_at), 8u);
- BOOST_TEST_EQ(sizeof(little_float32_buf_at), 4u);
- BOOST_TEST_EQ(sizeof(little_float64_buf_at), 8u);
- } // check_size
- // test_inserter_and_extractor -----------------------------------------------------//
- void test_inserter_and_extractor()
- {
- std::cout << "test inserter and extractor..." << std::endl;
- big_uint64_buf_t bu64(0x010203040506070ULL);
- little_uint64_buf_t lu64(0x010203040506070ULL);
- boost::uint64_t x;
- std::stringstream ss;
- ss << bu64;
- ss >> x;
- BOOST_TEST_EQ(x, 0x010203040506070ULL);
- ss.clear();
- ss << lu64;
- ss >> x;
- BOOST_TEST_EQ(x, 0x010203040506070ULL);
- ss.clear();
- ss << 0x010203040506070ULL;
- big_uint64_buf_t bu64z(0);
- ss >> bu64z;
- BOOST_TEST_EQ(bu64z.value(), bu64.value());
- ss.clear();
- ss << 0x010203040506070ULL;
- little_uint64_buf_t lu64z(0);
- ss >> lu64z;
- BOOST_TEST_EQ(lu64z.value(), lu64.value());
- std::cout << "test inserter and extractor complete" << std::endl;
- }
- template<class T> struct unaligned
- {
- char x;
- T y;
- };
- template<class T> void test_buffer_type( typename T::value_type v1, typename T::value_type v2 )
- {
- T buffer( v1 );
- BOOST_TEST_EQ( buffer.value(), v1 );
- buffer = v2;
- BOOST_TEST_EQ( buffer.value(), v2 );
- unaligned<T> buffer2 = { 0, T( v1 ) };
- BOOST_TEST_EQ( buffer2.y.value(), v1 );
- buffer2.y = v2;
- BOOST_TEST_EQ( buffer2.y.value(), v2 );
- }
- void test_construction_and_assignment()
- {
- std::cout << "test construction and assignment..." << std::endl;
- test_buffer_type< big_int8_buf_at>( 0x01, -0x01 );
- test_buffer_type<big_int16_buf_at>( 0x0102, -0x0102 );
- test_buffer_type<big_int32_buf_at>( 0x01020304, -0x01020304 );
- test_buffer_type<big_int64_buf_at>( 0x0102030405060708LL, -0x0102030405060708LL );
- test_buffer_type< big_uint8_buf_at>( 0x01, 0xFE );
- test_buffer_type<big_uint16_buf_at>( 0x0102, 0xFE02 );
- test_buffer_type<big_uint32_buf_at>( 0x01020304, 0xFE020304 );
- test_buffer_type<big_uint64_buf_at>( 0x0102030405060708ULL, 0xFE02030405060708ULL );
- test_buffer_type<big_float32_buf_at>( +1.5f, -3.14f );
- test_buffer_type<big_float64_buf_at>( +1.5, -3.14 );
- test_buffer_type< little_int8_buf_at>( 0x01, -0x01 );
- test_buffer_type<little_int16_buf_at>( 0x0102, -0x0102 );
- test_buffer_type<little_int32_buf_at>( 0x01020304, -0x01020304 );
- test_buffer_type<little_int64_buf_at>( 0x0102030405060708LL, -0x0102030405060708LL );
- test_buffer_type< little_uint8_buf_at>( 0x01, 0xFE );
- test_buffer_type<little_uint16_buf_at>( 0x0102, 0xFE02 );
- test_buffer_type<little_uint32_buf_at>( 0x01020304, 0xFE020304 );
- test_buffer_type<little_uint64_buf_at>( 0x0102030405060708ULL, 0xFE02030405060708ULL );
- test_buffer_type<little_float32_buf_at>( +1.5f, -3.14f );
- test_buffer_type<little_float64_buf_at>( +1.5, -3.14 );
- test_buffer_type< big_int8_buf_t>( 0x01, -0x01 );
- test_buffer_type<big_int16_buf_t>( 0x0102, -0x0102 );
- test_buffer_type<big_int24_buf_t>( 0x010203, -0x010203 );
- test_buffer_type<big_int32_buf_t>( 0x01020304, -0x01020304 );
- test_buffer_type<big_int40_buf_t>( 0x0102030405LL, -0x0102030405LL );
- test_buffer_type<big_int48_buf_t>( 0x010203040506LL, -0x010203040506LL );
- test_buffer_type<big_int56_buf_t>( 0x01020304050607LL, -0x01020304050607LL );
- test_buffer_type<big_int64_buf_t>( 0x0102030405060708LL, -0x0102030405060708LL );
- test_buffer_type<big_float32_buf_t>( +1.5f, -3.14f );
- test_buffer_type<big_float64_buf_t>( +1.5, -3.14 );
- test_buffer_type< little_uint8_buf_t>( 0x01, 0xFE );
- test_buffer_type<little_uint16_buf_t>( 0x0102, 0xFE02 );
- test_buffer_type<little_uint24_buf_t>( 0x010203, 0xFE0203 );
- test_buffer_type<little_uint32_buf_t>( 0x01020304, 0xFE020304 );
- test_buffer_type<little_uint40_buf_t>( 0x0102030405ULL, 0xFE02030405ULL );
- test_buffer_type<little_uint48_buf_t>( 0x010203040506ULL, 0xFE0203040506ULL );
- test_buffer_type<little_uint56_buf_t>( 0x01020304050607ULL, 0xFE020304050607ULL );
- test_buffer_type<little_uint64_buf_t>( 0x0102030405060708ULL, 0xFE02030405060708ULL );
- test_buffer_type<little_float32_buf_t>( +1.5f, -3.14f );
- test_buffer_type<little_float64_buf_t>( +1.5, -3.14 );
- std::cout << "test construction and assignment complete" << std::endl;
- }
- template <typename T>
- void test_boundary_values_()
- {
- test_buffer_type< endian_buffer<order::big, T, sizeof(T) * CHAR_BIT, align::no > >( std::numeric_limits<T>::min(), std::numeric_limits<T>::max() );
- test_buffer_type< endian_buffer<order::little, T, sizeof(T) * CHAR_BIT, align::no > >( std::numeric_limits<T>::min(), std::numeric_limits<T>::max() );
- test_buffer_type< endian_buffer<order::big, T, sizeof(T) * CHAR_BIT, align::yes> >( std::numeric_limits<T>::min(), std::numeric_limits<T>::max() );
- test_buffer_type< endian_buffer<order::little, T, sizeof(T) * CHAR_BIT, align::yes> >( std::numeric_limits<T>::min(), std::numeric_limits<T>::max() );
- }
- void test_boundary_values()
- {
- std::cout << "test boundary values..." << std::endl;
- // integer types
- test_boundary_values_<signed char>();
- test_boundary_values_<unsigned char>();
- test_boundary_values_<signed short>();
- test_boundary_values_<unsigned short>();
- test_boundary_values_<signed int>();
- test_boundary_values_<unsigned int>();
- test_boundary_values_<signed long>();
- test_boundary_values_<unsigned long>();
- test_boundary_values_<signed long long>();
- test_boundary_values_<unsigned long long>();
- // character types
- test_boundary_values_<char>();
- #if !defined(BOOST_NO_CXX11_CHAR16_T)
- test_boundary_values_<char16_t>();
- #endif
- #if !defined(BOOST_NO_CXX11_CHAR32_T)
- test_boundary_values_<char32_t>();
- #endif
- // floating-point types
- test_boundary_values_<float>();
- test_boundary_values_<double>();
- std::cout << "test boundary values complete" << std::endl;
- }
- } // unnamed namespace
- //--------------------------------------------------------------------------------------//
- int cpp_main(int, char *[])
- {
- cout << "byte swap intrinsics: " BOOST_ENDIAN_INTRINSIC_MSG << endl;
- cout << " construct big endian aligned" << endl;
- big_int32_buf_at x(1122334455);
- cout << " assign to buffer from built-in integer" << endl;
- x = 1234567890;
- cout << " operator==(buffer.value(), built-in)" << endl;
- bool b1(x.value() == 1234567890);
- BOOST_TEST(b1);
- cout << " construct little endian unaligned" << endl;
- little_int32_buf_t x2(1122334455);
- cout << " assign to buffer from built-in integer" << endl;
- x2 = 1234567890;
- cout << " operator==(buffer.value(), built-in)" << endl;
- bool b2(x2.value() == 1234567890);
- BOOST_TEST(b2);
- check_size();
- test_inserter_and_extractor();
- test_construction_and_assignment();
- test_boundary_values();
- cout << " done" << endl;
- return ::boost::report_errors();
- }
- #include <boost/endian/detail/disable_warnings_pop.hpp>
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