DataTypes.h.cmake revision e2aa5d53db175dff634069cacb31487e3ddb9754 
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#cmakedefine HAVE_SYS_TYPES_H ${HAVE_SYS_TYPES_H}
28#cmakedefine HAVE_INTTYPES_H ${HAVE_INTTYPES_H}
29#cmakedefine HAVE_STDINT_H ${HAVE_STDINT_H}
30#cmakedefine HAVE_UINT64_T ${HAVE_UINT64_T}
31#cmakedefine HAVE_U_INT64_T ${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>
98#ifdef __cplusplus
99#include <cmath>
100#else
101#include <math.h>
102#endif
103typedef __int64 int64_t;
104typedef unsigned __int64 uint64_t;
105typedef signed int int32_t;
106typedef unsigned int uint32_t;
107typedef short int16_t;
108typedef unsigned short uint16_t;
109typedef signed char int8_t;
110typedef unsigned char uint8_t;
111typedef signed int ssize_t;
112#ifndef INT8_MAX
113# define INT8_MAX 127
114#endif
115#ifndef INT8_MIN
116# define INT8_MIN -128
117#endif
118#ifndef UINT8_MAX
119# define UINT8_MAX 255
120#endif
121#ifndef INT16_MAX
122# define INT16_MAX 32767
123#endif
124#ifndef INT16_MIN
125# define INT16_MIN -32768
126#endif
127#ifndef UINT16_MAX
128# define UINT16_MAX 65535
129#endif
130#ifndef INT32_MAX
131# define INT32_MAX 2147483647
132#endif
133#ifndef INT32_MIN
134/* MSC treats -2147483648 as -(2147483648U). */
135# define INT32_MIN (-INT32_MAX - 1)
136#endif
137#ifndef UINT32_MAX
138# define UINT32_MAX 4294967295U
139#endif
140/* Certain compatibility updates to VC++ introduce the `cstdint'
141 * header, which defines the INT*_C macros. On default installs they
142 * are absent. */
143#ifndef INT8_C
144# define INT8_C(C)   C##i8
145#endif
146#ifndef UINT8_C
147# define UINT8_C(C)  C##ui8
148#endif
149#ifndef INT16_C
150# define INT16_C(C)  C##i16
151#endif
152#ifndef UINT16_C
153# define UINT16_C(C) C##ui16
154#endif
155#ifndef INT32_C
156# define INT32_C(C)  C##i32
157#endif
158#ifndef UINT32_C
159# define UINT32_C(C) C##ui32
160#endif
161#ifndef INT64_C
162# define INT64_C(C)  C##i64
163#endif
164#ifndef UINT64_C
165# define UINT64_C(C) C##ui64
166#endif
167
168#ifndef PRIx64
169# define PRIx64 "I64x"
170#endif
171
172#endif /* _MSC_VER */
173
174/* Set defaults for constants which we cannot find. */
175#if !defined(INT64_MAX)
176# define INT64_MAX 9223372036854775807LL
177#endif
178#if !defined(INT64_MIN)
179# define INT64_MIN ((-INT64_MAX)-1)
180#endif
181#if !defined(UINT64_MAX)
182# define UINT64_MAX 0xffffffffffffffffULL
183#endif
184
185#if __GNUC__ > 3
186#define END_WITH_NULL __attribute__((sentinel))
187#else
188#define END_WITH_NULL
189#endif
190
191#ifndef HUGE_VALF
192#define HUGE_VALF (float)HUGE_VAL
193#endif
194
195#endif  /* SUPPORT_DATATYPES_H */
196