1 /*===-- include/System/DataTypes.h - Define fixed size types -----*- C -*-===*\
3 |* The LLVM Compiler Infrastructure *|
5 |* This file is distributed under the University of Illinois Open Source *|
6 |* License. See LICENSE.TXT for details. *|
8 |*===----------------------------------------------------------------------===*|
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 *|
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. *|
18 |* No library is required when using these functinons. *|
20 |*===----------------------------------------------------------------------===*/
22 /* Please leave this file C-compatible. */
24 #ifndef SUPPORT_DATATYPES_H
25 #define SUPPORT_DATATYPES_H
27 #undef HAVE_SYS_TYPES_H
28 #undef HAVE_INTTYPES_H
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 System/DataTypes.h"
49 #if !defined(__STDC_CONSTANT_MACROS)
50 # error "Must #define __STDC_CONSTANT_MACROS before " \
51 "#including System/DataTypes.h"
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>
59 #ifdef HAVE_INTTYPES_H
68 #include "llvm/System/AIXDataTypesFix.h"
71 /* Handle incorrect definition of uint64_t as u_int64_t */
74 typedef u_int64_t uint64_t;
76 # error "Don't have a definition for uint64_t on this platform"
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
93 /* Visual C++ doesn't provide standard integer headers, but it does provide
94 built-in data types. */
97 #include <sys/types.h>
98 typedef __int64 int64_t;
99 typedef unsigned __int64 uint64_t;
100 typedef signed int int32_t;
101 typedef unsigned int uint32_t;
102 typedef short int16_t;
103 typedef unsigned short uint16_t;
104 typedef signed char int8_t;
105 typedef unsigned char uint8_t;
106 typedef signed int ssize_t;
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
119 #define UINT16_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 */
126 /* Set defaults for constants which we cannot find. */
127 #if !defined(INT64_MAX)
128 # define INT64_MAX 9223372036854775807LL
130 #if !defined(INT64_MIN)
131 # define INT64_MIN ((-INT64_MAX)-1)
133 #if !defined(UINT64_MAX)
134 # define UINT64_MAX 0xffffffffffffffffULL
138 #define END_WITH_NULL __attribute__((sentinel))
140 #define END_WITH_NULL
144 #define HUGE_VALF (float)HUGE_VAL
147 #endif /* SUPPORT_DATATYPES_H */