1 // Copyright 2019 Peter Dimov
2 //
3 // Distributed under the Boost Software License, Version 1.0.
4 // http://www.boost.org/LICENSE_1_0.txt
5
6 #include <boost/endian/arithmetic.hpp>
7 #include <boost/core/lightweight_test.hpp>
8 #include <boost/config.hpp>
9 #include <boost/cstdint.hpp>
10 #include <cstddef>
11
test_arithmetic_(T const & x)12 template<BOOST_SCOPED_ENUM(boost::endian::order) Order, BOOST_SCOPED_ENUM(boost::endian::align) Align, class T> void test_arithmetic_( T const& x )
13 {
14 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y( x );
15
16 BOOST_TEST_EQ( +x, +y );
17
18 BOOST_TEST_EQ( x + x, y + y );
19 BOOST_TEST_EQ( x - x, y - y );
20
21 BOOST_TEST_EQ( x * x, y * y );
22 BOOST_TEST_EQ( x / x, y / y );
23
24 {
25 T x2( x );
26 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
27
28 BOOST_TEST_EQ( x2 += x, y2 += y );
29 }
30
31 {
32 T x2( x );
33 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
34
35 BOOST_TEST_EQ( x2 -= x, y2 -= y );
36 }
37
38 {
39 T x2( x );
40 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
41
42 BOOST_TEST_EQ( x2 *= x, y2 *= y );
43 }
44
45 {
46 T x2( x );
47 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
48
49 BOOST_TEST_EQ( x2 /= x, y2 /= y );
50 }
51
52 {
53 T x2( x );
54 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
55
56 BOOST_TEST_EQ( ++x2, ++y2 );
57 }
58
59 {
60 T x2( x );
61 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
62
63 BOOST_TEST_EQ( --x2, --y2 );
64 }
65
66 {
67 T x2( x );
68 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
69
70 BOOST_TEST_EQ( x2++, y2++ );
71 }
72
73 {
74 T x2( x );
75 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
76
77 BOOST_TEST_EQ( x2--, y2-- );
78 }
79 }
80
test_integral_(T const & x)81 template<BOOST_SCOPED_ENUM(boost::endian::order) Order, BOOST_SCOPED_ENUM(boost::endian::align) Align, class T> void test_integral_( T const& x )
82 {
83 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y( x );
84
85 BOOST_TEST_EQ( x % x, y % y );
86
87 BOOST_TEST_EQ( x & x, y & y );
88 BOOST_TEST_EQ( x | x, y | y );
89 BOOST_TEST_EQ( x ^ x, y ^ y );
90
91 BOOST_TEST_EQ( x << 1, y << 1 );
92 BOOST_TEST_EQ( x >> 1, y >> 1 );
93
94 {
95 T x2( x );
96 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
97
98 BOOST_TEST_EQ( x2 %= x, y2 %= y );
99 }
100
101 {
102 T x2( x );
103 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
104
105 BOOST_TEST_EQ( x2 &= x, y2 &= y );
106 }
107
108 {
109 T x2( x );
110 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
111
112 BOOST_TEST_EQ( x2 |= x, y2 |= y );
113 }
114
115 {
116 T x2( x );
117 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
118
119 BOOST_TEST_EQ( x2 ^= x, y2 ^= y );
120 }
121
122 {
123 T x2( x );
124 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
125
126 BOOST_TEST_EQ( x2 <<= 1, y2 <<= 1 );
127 }
128
129 {
130 T x2( x );
131 boost::endian::endian_arithmetic<Order, T, sizeof(T) * 8, Align> y2( y );
132
133 BOOST_TEST_EQ( x2 >>= 1, y2 >>= 1 );
134 }
135 }
136
test_arithmetic(T const & x)137 template<class T> void test_arithmetic( T const& x )
138 {
139 test_arithmetic_<boost::endian::order::little, boost::endian::align::no>( x );
140 test_arithmetic_<boost::endian::order::little, boost::endian::align::yes>( x );
141 test_arithmetic_<boost::endian::order::big, boost::endian::align::no>( x );
142 test_arithmetic_<boost::endian::order::big, boost::endian::align::yes>( x );
143 }
144
test_integral(T const & x)145 template<class T> void test_integral( T const& x )
146 {
147 test_arithmetic( x );
148
149 test_integral_<boost::endian::order::little, boost::endian::align::no>( x );
150 test_integral_<boost::endian::order::little, boost::endian::align::yes>( x );
151 test_integral_<boost::endian::order::big, boost::endian::align::no>( x );
152 test_integral_<boost::endian::order::big, boost::endian::align::yes>( x );
153 }
154
main()155 int main()
156 {
157 test_integral( 0x7EF2 );
158 test_integral( 0x01020304u );
159
160 test_arithmetic( 3.1416f );
161 test_arithmetic( 3.14159 );
162
163 return boost::report_errors();
164 }
165