1 /*===-- include/Support/DataTypes.h - Define fixed size types -----*- C -*-===*\
2 |*                                                                            *|
3 |*                     The LLVM Compiler Infrastructure                       *|
4 |*                                                                            *|
5 |* This file is distributed under the University of Illinois Open Source      *|
6 |* License. See LICENSE.TXT for details.                                      *|
7 |*                                                                            *|
8 |*===----------------------------------------------------------------------===*|
9 |*                                                                            *|
10 |* This file contains definitions to figure out the size of _HOST_ data types.*|
11 |* This file is important because different host OS's define different macros,*|
12 |* which makes portability tough.  This file exports the following            *|
13 |* definitions:                                                               *|
14 |*                                                                            *|
15 |*   [u]int(32|64)_t : typedefs for signed and unsigned 32/64 bit system types*|
16 |*   [U]INT(8|16|32|64)_(MIN|MAX) : Constants for the min and max values.     *|
17 |*                                                                            *|
18 |* No library is required when using these functions.                         *|
19 |*                                                                            *|
20 |*===----------------------------------------------------------------------===*/
21 
22 /* Please leave this file C-compatible. */
23 
24 /* Please keep this file in sync with DataTypes.h.in */
25 
26 #ifndef SUPPORT_DATATYPES_H
27 #define SUPPORT_DATATYPES_H
28 
29 #define HAVE_SYS_TYPES_H 1
30 /* #undef HAVE_INTTYPES_H */
31 #define HAVE_STDINT_H 1
32 #define HAVE_UINT64_T 1
33 /* #undef HAVE_U_INT64_T */
34 
35 #ifdef __cplusplus
36 #include <cmath>
37 #else
38 #include <math.h>
39 #endif
40 
41 #ifndef _MSC_VER
42 
43 /* Note that this header's correct operation depends on __STDC_LIMIT_MACROS
44    being defined.  We would define it here, but in order to prevent Bad Things
45    happening when system headers or C++ STL headers include stdint.h before we
46    define it here, we define it on the g++ command line (in Makefile.rules). */
47 #if !defined(__STDC_LIMIT_MACROS)
48 #error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h"
49 #endif
50 
51 #if !defined(__STDC_CONSTANT_MACROS)
52 #error "Must #define __STDC_CONSTANT_MACROS before " \
53         "#including Support/DataTypes.h"
54 #endif
55 
56 /* Note that <inttypes.h> includes <stdint.h>, if this is a C99 system. */
57 #ifdef HAVE_SYS_TYPES_H
58 #include <sys/types.h>
59 #endif
60 
61 #ifdef HAVE_INTTYPES_H
62 #include <inttypes.h>
63 #endif
64 
65 #ifdef HAVE_STDINT_H
66 #include <stdint.h>
67 #endif
68 
69 #ifdef _AIX
70 #include "llvm/Support/AIXDataTypesFix.h"
71 #endif
72 
73 /* Handle incorrect definition of uint64_t as u_int64_t */
74 #ifndef HAVE_UINT64_T
75 #ifdef HAVE_U_INT64_T
76 typedef u_int64_t uint64_t;
77 #else
78 #error "Don't have a definition for uint64_t on this platform"
79 #endif
80 #endif
81 
82 #ifdef _OpenBSD_
83 #define INT8_MAX 127
84 #define INT8_MIN -128
85 #define UINT8_MAX 255
86 #define INT16_MAX 32767
87 #define INT16_MIN -32768
88 #define UINT16_MAX 65535
89 #define INT32_MAX 2147483647
90 #define INT32_MIN -2147483648
91 #define UINT32_MAX 4294967295U
92 #endif
93 
94 #else /* _MSC_VER */
95 /* Visual C++ doesn't provide standard integer headers, but it does provide
96    built-in data types. */
97 #include <stddef.h>
98 #include <stdint.h>
99 #include <stdlib.h>
100 #include <sys/types.h>
101 #ifdef __cplusplus
102 #include <cmath>
103 #else
104 #include <math.h>
105 #endif
106 typedef __int64 int64_t;
107 typedef unsigned __int64 uint64_t;
108 typedef signed int int32_t;
109 typedef unsigned int uint32_t;
110 typedef short int16_t;
111 typedef unsigned short uint16_t;
112 typedef signed char int8_t;
113 typedef unsigned char uint8_t;
114 typedef signed int ssize_t;
115 #ifndef INT8_MAX
116 #define INT8_MAX 127
117 #endif
118 #ifndef INT8_MIN
119 #define INT8_MIN -128
120 #endif
121 #ifndef UINT8_MAX
122 #define UINT8_MAX 255
123 #endif
124 #ifndef INT16_MAX
125 #define INT16_MAX 32767
126 #endif
127 #ifndef INT16_MIN
128 #define INT16_MIN -32768
129 #endif
130 #ifndef UINT16_MAX
131 #define UINT16_MAX 65535
132 #endif
133 #ifndef INT32_MAX
134 #define INT32_MAX 2147483647
135 #endif
136 #ifndef INT32_MIN
137 /* MSC treats -2147483648 as -(2147483648U). */
138 #define INT32_MIN (-INT32_MAX - 1)
139 #endif
140 #ifndef UINT32_MAX
141 #define UINT32_MAX 4294967295U
142 #endif
143 /* Certain compatibility updates to VC++ introduce the `cstdint'
144  * header, which defines the INT*_C macros. On default installs they
145  * are absent. */
146 #ifndef INT8_C
147 #define INT8_C(C) C##i8
148 #endif
149 #ifndef UINT8_C
150 #define UINT8_C(C) C##ui8
151 #endif
152 #ifndef INT16_C
153 #define INT16_C(C) C##i16
154 #endif
155 #ifndef UINT16_C
156 #define UINT16_C(C) C##ui16
157 #endif
158 #ifndef INT32_C
159 #define INT32_C(C) C##i32
160 #endif
161 #ifndef UINT32_C
162 #define UINT32_C(C) C##ui32
163 #endif
164 #ifndef INT64_C
165 #define INT64_C(C) C##i64
166 #endif
167 #ifndef UINT64_C
168 #define UINT64_C(C) C##ui64
169 #endif
170 
171 #ifndef PRId64
172 # define PRId64 "I64d"
173 #endif
174 #ifndef PRIi64
175 # define PRIu64 "I64i"
176 #endif
177 #ifndef PRIo64
178 # define PRIx64 "I64o"
179 #endif
180 #ifndef PRIu64
181 # define PRIu64 "I64u"
182 #endif
183 #ifndef PRIx64
184 # define PRIx64 "I64x"
185 #endif
186 #ifndef PRIX64
187 # define PRIX64 "I64X"
188 #endif
189 
190 #endif /* _MSC_VER */
191 
192 /* Set defaults for constants which we cannot find. */
193 #if !defined(INT64_MAX)
194 #define INT64_MAX 9223372036854775807LL
195 #endif
196 #if !defined(INT64_MIN)
197 #define INT64_MIN ((-INT64_MAX) - 1)
198 #endif
199 #if !defined(UINT64_MAX)
200 #define UINT64_MAX 0xffffffffffffffffULL
201 #endif
202 
203 #if __GNUC__ > 3
204 #define END_WITH_NULL __attribute__((sentinel))
205 #else
206 #define END_WITH_NULL
207 #endif
208 
209 #ifndef HUGE_VALF
210 #define HUGE_VALF (float)HUGE_VAL
211 #endif
212 
213 #endif /* SUPPORT_DATATYPES_H */
214