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 #define HAVE_INTTYPES_H 1 31 #define HAVE_STDINT_H 1 32 #define HAVE_UINT64_T 1 33 #define HAVE_U_INT64_T 1 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 <stdlib.h> 98 #include <stddef.h> 99 #include <sys/types.h> 100 #ifdef __cplusplus 101 #include <cmath> 102 #else 103 #include <math.h> 104 #endif 105 typedef __int64 int64_t; 106 typedef unsigned __int64 uint64_t; 107 typedef signed int int32_t; 108 typedef unsigned int uint32_t; 109 typedef short int16_t; 110 typedef unsigned short uint16_t; 111 typedef signed char int8_t; 112 typedef unsigned char uint8_t; 113 typedef signed int ssize_t; 114 #ifndef INT8_MAX 115 # define INT8_MAX 127 116 #endif 117 #ifndef INT8_MIN 118 # define INT8_MIN -128 119 #endif 120 #ifndef UINT8_MAX 121 # define UINT8_MAX 255 122 #endif 123 #ifndef INT16_MAX 124 # define INT16_MAX 32767 125 #endif 126 #ifndef INT16_MIN 127 # define INT16_MIN -32768 128 #endif 129 #ifndef UINT16_MAX 130 # define UINT16_MAX 65535 131 #endif 132 #ifndef INT32_MAX 133 # define INT32_MAX 2147483647 134 #endif 135 #ifndef INT32_MIN 136 /* MSC treats -2147483648 as -(2147483648U). */ 137 # define INT32_MIN (-INT32_MAX - 1) 138 #endif 139 #ifndef UINT32_MAX 140 # define UINT32_MAX 4294967295U 141 #endif 142 /* Certain compatibility updates to VC++ introduce the `cstdint' 143 * header, which defines the INT*_C macros. On default installs they 144 * are absent. */ 145 #ifndef INT8_C 146 # define INT8_C(C) C##i8 147 #endif 148 #ifndef UINT8_C 149 # define UINT8_C(C) C##ui8 150 #endif 151 #ifndef INT16_C 152 # define INT16_C(C) C##i16 153 #endif 154 #ifndef UINT16_C 155 # define UINT16_C(C) C##ui16 156 #endif 157 #ifndef INT32_C 158 # define INT32_C(C) C##i32 159 #endif 160 #ifndef UINT32_C 161 # define UINT32_C(C) C##ui32 162 #endif 163 #ifndef INT64_C 164 # define INT64_C(C) C##i64 165 #endif 166 #ifndef UINT64_C 167 # define UINT64_C(C) C##ui64 168 #endif 169 170 #ifndef PRIx64 171 # define PRIx64 "I64x" 172 #endif 173 174 #endif /* _MSC_VER */ 175 176 /* Set defaults for constants which we cannot find. */ 177 #if !defined(INT64_MAX) 178 # define INT64_MAX 9223372036854775807LL 179 #endif 180 #if !defined(INT64_MIN) 181 # define INT64_MIN ((-INT64_MAX)-1) 182 #endif 183 #if !defined(UINT64_MAX) 184 # define UINT64_MAX 0xffffffffffffffffULL 185 #endif 186 187 #if __GNUC__ > 3 188 #define END_WITH_NULL __attribute__((sentinel)) 189 #else 190 #define END_WITH_NULL 191 #endif 192 193 #ifndef HUGE_VALF 194 #define HUGE_VALF (float)HUGE_VAL 195 #endif 196 197 #endif /* SUPPORT_DATATYPES_H */
