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 #cmakedefine HAVE_INTTYPES_H ${HAVE_INTTYPES_H} 30 #cmakedefine HAVE_STDINT_H ${HAVE_STDINT_H} 31 #cmakedefine HAVE_UINT64_T ${HAVE_UINT64_T} 32 #cmakedefine HAVE_U_INT64_T ${HAVE_U_INT64_T} 33 34 #ifdef __cplusplus 35 #include <cmath> 36 #else 37 #include <math.h> 38 #endif 39 40 #ifdef HAVE_INTTYPES_H 41 #include <inttypes.h> 42 #endif 43 44 #ifdef HAVE_STDINT_H 45 #include <stdint.h> 46 #else 47 #error "Compiler must provide an implementation of stdint.h" 48 #endif 49 50 #ifndef _MSC_VER 51 52 /* Note that this header's correct operation depends on __STDC_LIMIT_MACROS 53 being defined. We would define it here, but in order to prevent Bad Things 54 happening when system headers or C++ STL headers include stdint.h before we 55 define it here, we define it on the g++ command line (in Makefile.rules). */ 56 #if !defined(__STDC_LIMIT_MACROS) 57 # error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h" 58 #endif 59 60 #if !defined(__STDC_CONSTANT_MACROS) 61 # error "Must #define __STDC_CONSTANT_MACROS before " \ 62 "#including Support/DataTypes.h" 63 #endif 64 65 /* Note that <inttypes.h> includes <stdint.h>, if this is a C99 system. */ 66 #include <sys/types.h> 67 68 #ifdef _AIX 69 #include "llvm/Support/AIXDataTypesFix.h" 70 #endif 71 72 /* Handle incorrect definition of uint64_t as u_int64_t */ 73 #ifndef HAVE_UINT64_T 74 #ifdef HAVE_U_INT64_T 75 typedef u_int64_t uint64_t; 76 #else 77 # error "Don't have a definition for uint64_t on this platform" 78 #endif 79 #endif 80 81 #else /* _MSC_VER */ 82 #include <stdlib.h> 83 #include <stddef.h> 84 #include <sys/types.h> 85 #ifdef __cplusplus 86 #include <cmath> 87 #else 88 #include <math.h> 89 #endif 90 91 #if defined(_WIN64) 92 typedef signed __int64 ssize_t; 93 #else 94 typedef signed int ssize_t; 95 #endif /* _WIN64 */ 96 97 #ifndef HAVE_INTTYPES_H 98 #define PRId64 "I64d" 99 #define PRIi64 "I64i" 100 #define PRIo64 "I64o" 101 #define PRIu64 "I64u" 102 #define PRIx64 "I64x" 103 #define PRIX64 "I64X" 104 #endif /* HAVE_INTTYPES_H */ 105 106 #endif /* _MSC_VER */ 107 108 /* Set defaults for constants which we cannot find. */ 109 #if !defined(INT64_MAX) 110 # define INT64_MAX 9223372036854775807LL 111 #endif 112 #if !defined(INT64_MIN) 113 # define INT64_MIN ((-INT64_MAX)-1) 114 #endif 115 #if !defined(UINT64_MAX) 116 # define UINT64_MAX 0xffffffffffffffffULL 117 #endif 118 119 #if __GNUC__ > 3 120 #define END_WITH_NULL __attribute__((sentinel)) 121 #else 122 #define END_WITH_NULL 123 #endif 124 125 #ifndef HUGE_VALF 126 #define HUGE_VALF (float)HUGE_VAL 127 #endif 128 129 #endif /* SUPPORT_DATATYPES_H */ 130
