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      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