DataTypes.h.in revision a84b15575906b6a0e9ada7646724cc716cff1cd1 
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 functinons.                        *|
19|*                                                                            *|
20|*===----------------------------------------------------------------------===*/
21
22/* Please leave this file C-compatible. */
23
24#ifndef SUPPORT_DATATYPES_H
25#define SUPPORT_DATATYPES_H
26
27#undef HAVE_SYS_TYPES_H
28#undef HAVE_INTTYPES_H
29#undef HAVE_STDINT_H
30#undef HAVE_UINT64_T
31#undef HAVE_U_INT64_T
32
33#ifdef __cplusplus
34#include <cmath>
35#else
36#include <math.h>
37#endif
38
39#ifndef _MSC_VER
40
41/* Note that this header's correct operation depends on __STDC_LIMIT_MACROS
42   being defined.  We would define it here, but in order to prevent Bad Things
43   happening when system headers or C++ STL headers include stdint.h before we
44   define it here, we define it on the g++ command line (in Makefile.rules). */
45#if !defined(__STDC_LIMIT_MACROS)
46# error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h"
47#endif
48
49#if !defined(__STDC_CONSTANT_MACROS)
50# error "Must #define __STDC_CONSTANT_MACROS before " \
51        "#including Support/DataTypes.h"
52#endif
53
54/* Note that <inttypes.h> includes <stdint.h>, if this is a C99 system. */
55#ifdef HAVE_SYS_TYPES_H
56#include <sys/types.h>
57#endif
58
59#ifdef HAVE_INTTYPES_H
60#include <inttypes.h>
61#endif
62
63#ifdef HAVE_STDINT_H
64#include <stdint.h>
65#endif
66
67#ifdef _AIX
68#include "llvm/Support/AIXDataTypesFix.h"
69#endif
70
71/* Handle incorrect definition of uint64_t as u_int64_t */
72#ifndef HAVE_UINT64_T
73#ifdef HAVE_U_INT64_T
74typedef u_int64_t uint64_t;
75#else
76# error "Don't have a definition for uint64_t on this platform"
77#endif
78#endif
79
80#ifdef _OpenBSD_
81#define INT8_MAX 127
82#define INT8_MIN -128
83#define UINT8_MAX 255
84#define INT16_MAX 32767
85#define INT16_MIN -32768
86#define UINT16_MAX 65535
87#define INT32_MAX 2147483647
88#define INT32_MIN -2147483648
89#define UINT32_MAX 4294967295U
90#endif
91
92#else /* _MSC_VER */
93/* Visual C++ doesn't provide standard integer headers, but it does provide
94   built-in data types. */
95#include <stdlib.h>
96#include <stddef.h>
97#include <sys/types.h>
98typedef __int64 int64_t;
99typedef unsigned __int64 uint64_t;
100typedef signed int int32_t;
101typedef unsigned int uint32_t;
102typedef short int16_t;
103typedef unsigned short uint16_t;
104typedef signed char int8_t;
105typedef unsigned char uint8_t;
106typedef signed int ssize_t;
107#define INT8_MAX 127
108#define INT8_MIN -128
109#define UINT8_MAX 255
110#define INT16_MAX 32767
111#define INT16_MIN -32768
112#define UINT16_MAX 65535
113#define INT32_MAX 2147483647
114#define INT32_MIN -2147483648
115#define UINT32_MAX 4294967295U
116#define INT8_C(C)   C
117#define UINT8_C(C)  C
118#define INT16_C(C)  C
119#define UINT16_C(C) C
120#define INT32_C(C)  C
121#define UINT32_C(C) C ## U
122#define INT64_C(C)  ((int64_t) C ## LL)
123#define UINT64_C(C) ((uint64_t) C ## ULL)
124#endif /* _MSC_VER */
125
126/* Set defaults for constants which we cannot find. */
127#if !defined(INT64_MAX)
128# define INT64_MAX 9223372036854775807LL
129#endif
130#if !defined(INT64_MIN)
131# define INT64_MIN ((-INT64_MAX)-1)
132#endif
133#if !defined(UINT64_MAX)
134# define UINT64_MAX 0xffffffffffffffffULL
135#endif
136
137#if __GNUC__ > 3
138#define END_WITH_NULL __attribute__((sentinel))
139#else
140#define END_WITH_NULL
141#endif
142
143#ifndef HUGE_VALF
144#define HUGE_VALF (float)HUGE_VAL
145#endif
146
147#endif  /* SUPPORT_DATATYPES_H */
148