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1 | // boost cstdint.hpp test program ------------------------------------------// |
2 | ||
3 | // Copyright Beman Dawes 2000. Distributed under the Boost | |
4 | // Software License, Version 1.0. (See accompanying file | |
5 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | ||
7 | ||
8 | // See http://www.boost.org/libs/integer for documentation. | |
9 | ||
10 | // Revision History | |
11 | // 11 Sep 01 Adapted to work with macros defined in native stdint.h (John Maddock) | |
12 | // 12 Nov 00 Adapted to merged <boost/cstdint.hpp> | |
13 | // 23 Sep 00 Added INTXX_C constant macro support + int64_t support (John Maddock). | |
14 | // 28 Jun 00 Initial version | |
15 | ||
16 | // | |
17 | // There are two ways to test this: in version 1, we include cstdint.hpp as the first | |
18 | // include, which means we get decide whether __STDC_CONSTANT_MACROS is defined. | |
19 | // In version two we include stdint.h with __STDC_CONSTANT_MACROS *NOT* defined first, | |
20 | // and check that we still end up with compatible definitions for the INT#_C macros. | |
21 | // | |
22 | // This is version 2. | |
23 | // | |
24 | ||
25 | #if defined(__GNUC__) && (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) | |
26 | // We can't suppress this warning on the command line as not all GCC versions support -Wno-type-limits : | |
27 | #pragma GCC diagnostic ignored "-Wtype-limits" | |
28 | #endif | |
29 | ||
30 | #include <boost/config.hpp> | |
31 | ||
32 | #ifdef BOOST_HAS_STDINT_H | |
33 | #ifdef __hpux | |
34 | # include <inttypes.h> | |
35 | #else | |
36 | # include <stdint.h> | |
37 | #endif | |
38 | #endif | |
39 | ||
40 | #include <boost/cstdint.hpp> | |
41 | #include <boost/detail/lightweight_test.hpp> | |
42 | #include <iostream> | |
43 | ||
44 | #ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION | |
45 | // | |
46 | // the following class is designed to verify | |
47 | // that the various INTXX_C macros can be used | |
48 | // in integral constant expressions: | |
49 | // | |
50 | struct integral_constant_checker | |
51 | { | |
52 | static const boost::int8_t int8 = INT8_C(-127); | |
53 | static const boost::int_least8_t int_least8 = INT8_C(-127); | |
54 | static const boost::int_fast8_t int_fast8 = INT8_C(-127); | |
55 | ||
56 | static const boost::uint8_t uint8 = UINT8_C(255); | |
57 | static const boost::uint_least8_t uint_least8 = UINT8_C(255); | |
58 | static const boost::uint_fast8_t uint_fast8 = UINT8_C(255); | |
59 | ||
60 | static const boost::int16_t int16 = INT16_C(-32767); | |
61 | static const boost::int_least16_t int_least16 = INT16_C(-32767); | |
62 | static const boost::int_fast16_t int_fast16 = INT16_C(-32767); | |
63 | ||
64 | static const boost::uint16_t uint16 = UINT16_C(65535); | |
65 | static const boost::uint_least16_t uint_least16 = UINT16_C(65535); | |
66 | static const boost::uint_fast16_t uint_fast16 = UINT16_C(65535); | |
67 | ||
68 | static const boost::int32_t int32 = INT32_C(-2147483647); | |
69 | static const boost::int_least32_t int_least32 = INT32_C(-2147483647); | |
70 | static const boost::int_fast32_t int_fast32 = INT32_C(-2147483647); | |
71 | ||
72 | static const boost::uint32_t uint32 = UINT32_C(4294967295); | |
73 | static const boost::uint_least32_t uint_least32 = UINT32_C(4294967295); | |
74 | static const boost::uint_fast32_t uint_fast32 = UINT32_C(4294967295); | |
75 | ||
76 | static void check(); | |
77 | }; | |
78 | ||
79 | void integral_constant_checker::check() | |
80 | { | |
81 | BOOST_TEST( int8 == -127 ); | |
82 | BOOST_TEST( int_least8 == -127 ); | |
83 | BOOST_TEST( int_fast8 == -127 ); | |
84 | BOOST_TEST( uint8 == 255u ); | |
85 | BOOST_TEST( uint_least8 == 255u ); | |
86 | BOOST_TEST( uint_fast8 == 255u ); | |
87 | BOOST_TEST( int16 == -32767 ); | |
88 | BOOST_TEST( int_least16 == -32767 ); | |
89 | BOOST_TEST( int_fast16 == -32767 ); | |
90 | BOOST_TEST( uint16 == 65535u ); | |
91 | BOOST_TEST( uint_least16 == 65535u ); | |
92 | BOOST_TEST( uint_fast16 == 65535u ); | |
93 | BOOST_TEST( int32 == -2147483647 ); | |
94 | BOOST_TEST( int_least32 == -2147483647 ); | |
95 | BOOST_TEST( int_fast32 == -2147483647 ); | |
96 | BOOST_TEST( uint32 == 4294967295u ); | |
97 | BOOST_TEST( uint_least32 == 4294967295u ); | |
98 | BOOST_TEST( uint_fast32 == 4294967295u ); | |
99 | } | |
100 | #endif // BOOST_NO_INCLASS_MEMBER_INITIALIZATION | |
101 | ||
102 | // | |
103 | // the following function simply verifies that the type | |
104 | // of an integral constant is correctly defined: | |
105 | // | |
20effc67 | 106 | #ifdef BOOST_BORLANDC |
7c673cae FG |
107 | #pragma option -w-8008 |
108 | #pragma option -w-8066 | |
109 | #endif | |
110 | template <class T1, class T2> | |
111 | void integral_constant_type_check(T1, T2) | |
112 | { | |
113 | // | |
114 | // the types T1 and T2 may not be exactly | |
115 | // the same type, but they should be the | |
116 | // same size and signedness. We could use | |
117 | // numeric_limits to verify this, but | |
118 | // numeric_limits implementations currently | |
119 | // vary too much, or are incomplete or missing. | |
120 | // | |
121 | T1 t1 = static_cast<T1>(-1); // cast suppresses warnings | |
122 | T2 t2 = static_cast<T2>(-1); // ditto | |
123 | #if defined(BOOST_HAS_STDINT_H) | |
124 | // if we have a native stdint.h | |
125 | // then the INTXX_C macros may define | |
126 | // a type that's wider than required: | |
127 | BOOST_TEST(sizeof(T1) <= sizeof(T2)); | |
128 | #else | |
129 | BOOST_TEST(sizeof(T1) == sizeof(T2)); | |
130 | BOOST_TEST(t1 == t2); | |
131 | #endif | |
132 | #if defined(BOOST_HAS_STDINT_H) | |
133 | // native headers are permitted to promote small | |
134 | // unsigned types to type int: | |
135 | if(sizeof(T1) >= sizeof(int)) | |
136 | { | |
137 | if(t1 > 0) | |
138 | BOOST_TEST(t2 > 0); | |
139 | else | |
140 | BOOST_TEST(!(t2 > 0)); | |
141 | } | |
142 | else if(t1 < 0) | |
143 | BOOST_TEST(!(t2 > 0)); | |
144 | #else | |
145 | if(t1 > 0) | |
146 | BOOST_TEST(t2 > 0); | |
147 | else | |
148 | BOOST_TEST(!(t2 > 0)); | |
149 | #endif | |
150 | } | |
151 | ||
152 | ||
153 | int main(int, char*[]) | |
154 | { | |
155 | #ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION | |
156 | integral_constant_checker::check(); | |
157 | #endif | |
158 | // | |
159 | // verify the types of the integral constants: | |
160 | // | |
161 | integral_constant_type_check(boost::int8_t(0), INT8_C(0)); | |
162 | integral_constant_type_check(boost::uint8_t(0), UINT8_C(0)); | |
163 | integral_constant_type_check(boost::int16_t(0), INT16_C(0)); | |
164 | integral_constant_type_check(boost::uint16_t(0), UINT16_C(0)); | |
165 | integral_constant_type_check(boost::int32_t(0), INT32_C(0)); | |
166 | integral_constant_type_check(boost::uint32_t(0), UINT32_C(0)); | |
167 | #ifndef BOOST_NO_INT64_T | |
168 | integral_constant_type_check(boost::int64_t(0), INT64_C(0)); | |
169 | integral_constant_type_check(boost::uint64_t(0), UINT64_C(0)); | |
170 | #endif | |
171 | // | |
172 | boost::int8_t int8 = INT8_C(-127); | |
173 | boost::int_least8_t int_least8 = INT8_C(-127); | |
174 | boost::int_fast8_t int_fast8 = INT8_C(-127); | |
175 | ||
176 | boost::uint8_t uint8 = UINT8_C(255); | |
177 | boost::uint_least8_t uint_least8 = UINT8_C(255); | |
178 | boost::uint_fast8_t uint_fast8 = UINT8_C(255); | |
179 | ||
180 | boost::int16_t int16 = INT16_C(-32767); | |
181 | boost::int_least16_t int_least16 = INT16_C(-32767); | |
182 | boost::int_fast16_t int_fast16 = INT16_C(-32767); | |
183 | ||
184 | boost::uint16_t uint16 = UINT16_C(65535); | |
185 | boost::uint_least16_t uint_least16 = UINT16_C(65535); | |
186 | boost::uint_fast16_t uint_fast16 = UINT16_C(65535); | |
187 | ||
188 | boost::int32_t int32 = INT32_C(-2147483647); | |
189 | boost::int_least32_t int_least32 = INT32_C(-2147483647); | |
190 | boost::int_fast32_t int_fast32 = INT32_C(-2147483647); | |
191 | ||
192 | boost::uint32_t uint32 = UINT32_C(4294967295); | |
193 | boost::uint_least32_t uint_least32 = UINT32_C(4294967295); | |
194 | boost::uint_fast32_t uint_fast32 = UINT32_C(4294967295); | |
195 | ||
196 | #ifndef BOOST_NO_INT64_T | |
197 | boost::int64_t int64 = INT64_C(-9223372036854775807); | |
198 | boost::int_least64_t int_least64 = INT64_C(-9223372036854775807); | |
199 | boost::int_fast64_t int_fast64 = INT64_C(-9223372036854775807); | |
200 | ||
201 | boost::uint64_t uint64 = UINT64_C(18446744073709551615); | |
202 | boost::uint_least64_t uint_least64 = UINT64_C(18446744073709551615); | |
203 | boost::uint_fast64_t uint_fast64 = UINT64_C(18446744073709551615); | |
204 | ||
205 | boost::intmax_t intmax = INTMAX_C(-9223372036854775807); | |
206 | boost::uintmax_t uintmax = UINTMAX_C(18446744073709551615); | |
207 | #else | |
208 | boost::intmax_t intmax = INTMAX_C(-2147483647); | |
209 | boost::uintmax_t uintmax = UINTMAX_C(4294967295); | |
210 | #endif | |
211 | ||
212 | BOOST_TEST( int8 == -127 ); | |
213 | BOOST_TEST( int_least8 == -127 ); | |
214 | BOOST_TEST( int_fast8 == -127 ); | |
215 | BOOST_TEST( uint8 == 255u ); | |
216 | BOOST_TEST( uint_least8 == 255u ); | |
217 | BOOST_TEST( uint_fast8 == 255u ); | |
218 | BOOST_TEST( int16 == -32767 ); | |
219 | BOOST_TEST( int_least16 == -32767 ); | |
220 | BOOST_TEST( int_fast16 == -32767 ); | |
221 | BOOST_TEST( uint16 == 65535u ); | |
222 | BOOST_TEST( uint_least16 == 65535u ); | |
223 | BOOST_TEST( uint_fast16 == 65535u ); | |
224 | BOOST_TEST( int32 == -2147483647 ); | |
225 | BOOST_TEST( int_least32 == -2147483647 ); | |
226 | BOOST_TEST( int_fast32 == -2147483647 ); | |
227 | BOOST_TEST( uint32 == 4294967295u ); | |
228 | BOOST_TEST( uint_least32 == 4294967295u ); | |
229 | BOOST_TEST( uint_fast32 == 4294967295u ); | |
230 | ||
231 | #ifndef BOOST_NO_INT64_T | |
232 | BOOST_TEST( int64 == INT64_C(-9223372036854775807) ); | |
233 | BOOST_TEST( int_least64 == INT64_C(-9223372036854775807) ); | |
234 | BOOST_TEST( int_fast64 == INT64_C(-9223372036854775807) ); | |
235 | BOOST_TEST( uint64 == UINT64_C(18446744073709551615) ); | |
236 | BOOST_TEST( uint_least64 == UINT64_C(18446744073709551615) ); | |
237 | BOOST_TEST( uint_fast64 == UINT64_C(18446744073709551615) ); | |
238 | BOOST_TEST( intmax == INT64_C(-9223372036854775807) ); | |
239 | BOOST_TEST( uintmax == UINT64_C(18446744073709551615) ); | |
240 | #else | |
241 | BOOST_TEST( intmax == -2147483647 ); | |
242 | BOOST_TEST( uintmax == 4294967295u ); | |
243 | #endif | |
244 | ||
245 | ||
246 | std::cout << "OK\n"; | |
247 | return boost::report_errors(); | |
248 | } |