1 // buffer_test.cpp -------------------------------------------------------------------//
3 // Copyright Beman Dawes 2014
5 // Distributed under the Boost Software License, Version 1.0.
6 // See http://www.boost.org/LICENSE_1_0.txt
8 // See library home page at http://www.boost.org/libs/endian
10 //--------------------------------------------------------------------------------------//
12 #include <boost/endian/detail/disable_warnings.hpp>
14 #include <boost/endian/buffers.hpp>
15 #include <boost/detail/lightweight_main.hpp>
16 #include <boost/core/lightweight_test.hpp>
17 #include <boost/cstdint.hpp>
22 using namespace boost::endian;
29 // check_size ------------------------------------------------------------//
34 BOOST_TEST_EQ(sizeof(big_int8_buf_t), 1u);
35 BOOST_TEST_EQ(sizeof(big_int16_buf_t), 2u);
36 BOOST_TEST_EQ(sizeof(big_int24_buf_t), 3u);
37 BOOST_TEST_EQ(sizeof(big_int32_buf_t), 4u);
38 BOOST_TEST_EQ(sizeof(big_int40_buf_t), 5u);
39 BOOST_TEST_EQ(sizeof(big_int48_buf_t), 6u);
40 BOOST_TEST_EQ(sizeof(big_int56_buf_t), 7u);
41 BOOST_TEST_EQ(sizeof(big_int64_buf_t), 8u);
43 BOOST_TEST_EQ(sizeof(big_uint8_buf_t), 1u);
44 BOOST_TEST_EQ(sizeof(big_uint16_buf_t), 2u);
45 BOOST_TEST_EQ(sizeof(big_uint24_buf_t), 3u);
46 BOOST_TEST_EQ(sizeof(big_uint32_buf_t), 4u);
47 BOOST_TEST_EQ(sizeof(big_uint40_buf_t), 5u);
48 BOOST_TEST_EQ(sizeof(big_uint48_buf_t), 6u);
49 BOOST_TEST_EQ(sizeof(big_uint56_buf_t), 7u);
50 BOOST_TEST_EQ(sizeof(big_uint64_buf_t), 8u);
52 BOOST_TEST_EQ(sizeof(big_float32_buf_t), 4u);
53 BOOST_TEST_EQ(sizeof(big_float64_buf_t), 8u);
55 BOOST_TEST_EQ(sizeof(little_int8_buf_t), 1u);
56 BOOST_TEST_EQ(sizeof(little_int16_buf_t), 2u);
57 BOOST_TEST_EQ(sizeof(little_int24_buf_t), 3u);
58 BOOST_TEST_EQ(sizeof(little_int32_buf_t), 4u);
59 BOOST_TEST_EQ(sizeof(little_int40_buf_t), 5u);
60 BOOST_TEST_EQ(sizeof(little_int48_buf_t), 6u);
61 BOOST_TEST_EQ(sizeof(little_int56_buf_t), 7u);
62 BOOST_TEST_EQ(sizeof(little_int64_buf_t), 8u);
64 BOOST_TEST_EQ(sizeof(little_uint8_buf_t), 1u);
65 BOOST_TEST_EQ(sizeof(little_uint16_buf_t), 2u);
66 BOOST_TEST_EQ(sizeof(little_uint24_buf_t), 3u);
67 BOOST_TEST_EQ(sizeof(little_uint32_buf_t), 4u);
68 BOOST_TEST_EQ(sizeof(little_uint40_buf_t), 5u);
69 BOOST_TEST_EQ(sizeof(little_uint48_buf_t), 6u);
70 BOOST_TEST_EQ(sizeof(little_uint56_buf_t), 7u);
71 BOOST_TEST_EQ(sizeof(little_uint64_buf_t), 8u);
73 BOOST_TEST_EQ(sizeof(little_float32_buf_t), 4u);
74 BOOST_TEST_EQ(sizeof(little_float64_buf_t), 8u);
76 BOOST_TEST_EQ(sizeof(native_int8_buf_t), 1u);
77 BOOST_TEST_EQ(sizeof(native_int16_buf_t), 2u);
78 BOOST_TEST_EQ(sizeof(native_int24_buf_t), 3u);
79 BOOST_TEST_EQ(sizeof(native_int32_buf_t), 4u);
80 BOOST_TEST_EQ(sizeof(native_int40_buf_t), 5u);
81 BOOST_TEST_EQ(sizeof(native_int48_buf_t), 6u);
82 BOOST_TEST_EQ(sizeof(native_int56_buf_t), 7u);
83 BOOST_TEST_EQ(sizeof(native_int64_buf_t), 8u);
85 BOOST_TEST_EQ(sizeof(native_uint8_buf_t), 1u);
86 BOOST_TEST_EQ(sizeof(native_uint16_buf_t), 2u);
87 BOOST_TEST_EQ(sizeof(native_uint24_buf_t), 3u);
88 BOOST_TEST_EQ(sizeof(native_uint32_buf_t), 4u);
89 BOOST_TEST_EQ(sizeof(native_uint40_buf_t), 5u);
90 BOOST_TEST_EQ(sizeof(native_uint48_buf_t), 6u);
91 BOOST_TEST_EQ(sizeof(native_uint56_buf_t), 7u);
92 BOOST_TEST_EQ(sizeof(native_uint64_buf_t), 8u);
94 BOOST_TEST_EQ(sizeof(native_float32_buf_t), 4u);
95 BOOST_TEST_EQ(sizeof(native_float64_buf_t), 8u);
97 BOOST_TEST_EQ(sizeof(big_int8_buf_at), 1u);
98 BOOST_TEST_EQ(sizeof(big_int16_buf_at), 2u);
99 BOOST_TEST_EQ(sizeof(big_int32_buf_at), 4u);
100 BOOST_TEST_EQ(sizeof(big_int64_buf_at), 8u);
102 BOOST_TEST_EQ(sizeof(big_uint8_buf_at), 1u);
103 BOOST_TEST_EQ(sizeof(big_uint16_buf_at), 2u);
104 BOOST_TEST_EQ(sizeof(big_uint32_buf_at), 4u);
105 BOOST_TEST_EQ(sizeof(big_uint64_buf_at), 8u);
107 BOOST_TEST_EQ(sizeof(big_float32_buf_at), 4u);
108 BOOST_TEST_EQ(sizeof(big_float64_buf_at), 8u);
110 BOOST_TEST_EQ(sizeof(little_int8_buf_at), 1u);
111 BOOST_TEST_EQ(sizeof(little_int16_buf_at), 2u);
112 BOOST_TEST_EQ(sizeof(little_int32_buf_at), 4u);
113 BOOST_TEST_EQ(sizeof(little_int64_buf_at), 8u);
115 BOOST_TEST_EQ(sizeof(little_uint8_buf_at), 1u);
116 BOOST_TEST_EQ(sizeof(little_uint16_buf_at), 2u);
117 BOOST_TEST_EQ(sizeof(little_uint32_buf_at), 4u);
118 BOOST_TEST_EQ(sizeof(little_uint64_buf_at), 8u);
120 BOOST_TEST_EQ(sizeof(little_float32_buf_at), 4u);
121 BOOST_TEST_EQ(sizeof(little_float64_buf_at), 8u);
125 // test_inserter_and_extractor -----------------------------------------------------//
127 void test_inserter_and_extractor()
129 std::cout << "test inserter and extractor..." << std::endl;
131 big_uint64_buf_t bu64(0x010203040506070ULL);
132 little_uint64_buf_t lu64(0x010203040506070ULL);
136 std::stringstream ss;
140 BOOST_TEST_EQ(x, 0x010203040506070ULL);
145 BOOST_TEST_EQ(x, 0x010203040506070ULL);
148 ss << 0x010203040506070ULL;
149 big_uint64_buf_t bu64z(0);
151 BOOST_TEST_EQ(bu64z.value(), bu64.value());
154 ss << 0x010203040506070ULL;
155 little_uint64_buf_t lu64z(0);
157 BOOST_TEST_EQ(lu64z.value(), lu64.value());
159 std::cout << "test inserter and extractor complete" << std::endl;
163 template<class T> struct unaligned
169 template<class T> void test_buffer_type( typename T::value_type v1, typename T::value_type v2 )
172 BOOST_TEST_EQ( buffer.value(), v1 );
175 BOOST_TEST_EQ( buffer.value(), v2 );
177 unaligned<T> buffer2 = { 0, T( v1 ) };
178 BOOST_TEST_EQ( buffer2.y.value(), v1 );
181 BOOST_TEST_EQ( buffer2.y.value(), v2 );
184 void test_construction_and_assignment()
186 std::cout << "test construction and assignment..." << std::endl;
188 test_buffer_type< big_int8_buf_at>( 0x01, -0x01 );
189 test_buffer_type<big_int16_buf_at>( 0x0102, -0x0102 );
190 test_buffer_type<big_int32_buf_at>( 0x01020304, -0x01020304 );
191 test_buffer_type<big_int64_buf_at>( 0x0102030405060708LL, -0x0102030405060708LL );
193 test_buffer_type< big_uint8_buf_at>( 0x01, 0xFE );
194 test_buffer_type<big_uint16_buf_at>( 0x0102, 0xFE02 );
195 test_buffer_type<big_uint32_buf_at>( 0x01020304, 0xFE020304 );
196 test_buffer_type<big_uint64_buf_at>( 0x0102030405060708ULL, 0xFE02030405060708ULL );
198 test_buffer_type<big_float32_buf_at>( +1.5f, -3.14f );
199 test_buffer_type<big_float64_buf_at>( +1.5, -3.14 );
201 test_buffer_type< little_int8_buf_at>( 0x01, -0x01 );
202 test_buffer_type<little_int16_buf_at>( 0x0102, -0x0102 );
203 test_buffer_type<little_int32_buf_at>( 0x01020304, -0x01020304 );
204 test_buffer_type<little_int64_buf_at>( 0x0102030405060708LL, -0x0102030405060708LL );
206 test_buffer_type< little_uint8_buf_at>( 0x01, 0xFE );
207 test_buffer_type<little_uint16_buf_at>( 0x0102, 0xFE02 );
208 test_buffer_type<little_uint32_buf_at>( 0x01020304, 0xFE020304 );
209 test_buffer_type<little_uint64_buf_at>( 0x0102030405060708ULL, 0xFE02030405060708ULL );
211 test_buffer_type<little_float32_buf_at>( +1.5f, -3.14f );
212 test_buffer_type<little_float64_buf_at>( +1.5, -3.14 );
214 test_buffer_type< big_int8_buf_t>( 0x01, -0x01 );
215 test_buffer_type<big_int16_buf_t>( 0x0102, -0x0102 );
216 test_buffer_type<big_int24_buf_t>( 0x010203, -0x010203 );
217 test_buffer_type<big_int32_buf_t>( 0x01020304, -0x01020304 );
218 test_buffer_type<big_int40_buf_t>( 0x0102030405LL, -0x0102030405LL );
219 test_buffer_type<big_int48_buf_t>( 0x010203040506LL, -0x010203040506LL );
220 test_buffer_type<big_int56_buf_t>( 0x01020304050607LL, -0x01020304050607LL );
221 test_buffer_type<big_int64_buf_t>( 0x0102030405060708LL, -0x0102030405060708LL );
223 test_buffer_type<big_float32_buf_t>( +1.5f, -3.14f );
224 test_buffer_type<big_float64_buf_t>( +1.5, -3.14 );
226 test_buffer_type< little_uint8_buf_t>( 0x01, 0xFE );
227 test_buffer_type<little_uint16_buf_t>( 0x0102, 0xFE02 );
228 test_buffer_type<little_uint24_buf_t>( 0x010203, 0xFE0203 );
229 test_buffer_type<little_uint32_buf_t>( 0x01020304, 0xFE020304 );
230 test_buffer_type<little_uint40_buf_t>( 0x0102030405ULL, 0xFE02030405ULL );
231 test_buffer_type<little_uint48_buf_t>( 0x010203040506ULL, 0xFE0203040506ULL );
232 test_buffer_type<little_uint56_buf_t>( 0x01020304050607ULL, 0xFE020304050607ULL );
233 test_buffer_type<little_uint64_buf_t>( 0x0102030405060708ULL, 0xFE02030405060708ULL );
235 test_buffer_type<little_float32_buf_t>( +1.5f, -3.14f );
236 test_buffer_type<little_float64_buf_t>( +1.5, -3.14 );
238 std::cout << "test construction and assignment complete" << std::endl;
241 template <typename T>
242 void test_boundary_values_()
244 test_buffer_type< endian_buffer<order::big, T, sizeof(T) * CHAR_BIT, align::no > >( std::numeric_limits<T>::min(), std::numeric_limits<T>::max() );
245 test_buffer_type< endian_buffer<order::little, T, sizeof(T) * CHAR_BIT, align::no > >( std::numeric_limits<T>::min(), std::numeric_limits<T>::max() );
246 test_buffer_type< endian_buffer<order::big, T, sizeof(T) * CHAR_BIT, align::yes> >( std::numeric_limits<T>::min(), std::numeric_limits<T>::max() );
247 test_buffer_type< endian_buffer<order::little, T, sizeof(T) * CHAR_BIT, align::yes> >( std::numeric_limits<T>::min(), std::numeric_limits<T>::max() );
250 void test_boundary_values()
252 std::cout << "test boundary values..." << std::endl;
256 test_boundary_values_<signed char>();
257 test_boundary_values_<unsigned char>();
258 test_boundary_values_<signed short>();
259 test_boundary_values_<unsigned short>();
260 test_boundary_values_<signed int>();
261 test_boundary_values_<unsigned int>();
262 test_boundary_values_<signed long>();
263 test_boundary_values_<unsigned long>();
264 test_boundary_values_<signed long long>();
265 test_boundary_values_<unsigned long long>();
269 test_boundary_values_<char>();
271 #if !defined(BOOST_NO_CXX11_CHAR16_T)
272 test_boundary_values_<char16_t>();
275 #if !defined(BOOST_NO_CXX11_CHAR32_T)
276 test_boundary_values_<char32_t>();
279 // floating-point types
281 test_boundary_values_<float>();
282 test_boundary_values_<double>();
284 std::cout << "test boundary values complete" << std::endl;
287 } // unnamed namespace
289 //--------------------------------------------------------------------------------------//
291 int cpp_main(int, char *[])
293 cout << "byte swap intrinsics: " BOOST_ENDIAN_INTRINSIC_MSG << endl;
295 cout << " construct big endian aligned" << endl;
296 big_int32_buf_at x(1122334455);
298 cout << " assign to buffer from built-in integer" << endl;
301 cout << " operator==(buffer.value(), built-in)" << endl;
302 bool b1(x.value() == 1234567890);
305 cout << " construct little endian unaligned" << endl;
306 little_int32_buf_t x2(1122334455);
308 cout << " assign to buffer from built-in integer" << endl;
311 cout << " operator==(buffer.value(), built-in)" << endl;
312 bool b2(x2.value() == 1234567890);
316 test_inserter_and_extractor();
317 test_construction_and_assignment();
318 test_boundary_values();
320 cout << " done" << endl;
322 return ::boost::report_errors();
325 #include <boost/endian/detail/disable_warnings_pop.hpp>