icuSources/common/unicode/ptypes.h

   1 /*
   2 ******************************************************************************
   3 *
   4 *   Copyright (C) 1997-2012, International Business Machines
   5 *   Corporation and others.  All Rights Reserved.
   6 *
   7 ******************************************************************************
   8 *
   9 *  FILE NAME : ptypes.h
  10 *
  11 *   Date        Name        Description
  12 *   05/13/98    nos         Creation (content moved here from ptypes.h).
  13 *   03/02/99    stephen     Added AS400 support.
  14 *   03/30/99    stephen     Added Linux support.
  15 *   04/13/99    stephen     Reworked for autoconf.
  16 *   09/18/08    srl         Moved basic types back to ptypes.h from platform.h
  17 ******************************************************************************
  18 */
  19
  20 /**
  21  * \file
  22  * \brief C API: Definitions of integer types of various widths
  23  */
  24
  25 #ifndef _PTYPES_H
  26 #define _PTYPES_H
  27
  28 /**
  29  * \def __STDC_LIMIT_MACROS
  30  * According to the Linux stdint.h, the ISO C99 standard specifies that in C++ implementations
  31  * macros like INT32_MIN and UINTPTR_MAX should only be defined if explicitly requested.
  32  * We need to define __STDC_LIMIT_MACROS before including stdint.h in C++ code
  33  * that uses such limit macros.
  34  * @internal
  35  */
  36 #ifndef __STDC_LIMIT_MACROS
  37 #define __STDC_LIMIT_MACROS
  38 #endif
  39
  40 /* NULL, size_t, wchar_t */
  41 #include <stddef.h>
  42
  43 /*
  44  * If all compilers provided all of the C99 headers and types,
  45  * we would just unconditionally #include <stdint.h> here
  46  * and not need any of the stuff after including platform.h.
  47  */
  48
  49 /* Find out if we have stdint.h etc. */
  50 #include "unicode/platform.h"
  51
  52 /*===========================================================================*/
  53 /* Generic data types                                                        */
  54 /*===========================================================================*/
  55
  56 /* If your platform does not have the <stdint.h> header, you may
  57    need to edit the typedefs in the #else section below.
  58    Use #if...#else...#endif with predefined compiler macros if possible. */
  59 #if U_HAVE_STDINT_H
  60
  61 /*
  62  * We mostly need <stdint.h> (which defines the standard integer types) but not <inttypes.h>.
  63  * <inttypes.h> includes <stdint.h> and adds the printf/scanf helpers PRId32, SCNx16 etc.
  64  * which we almost never use, plus stuff like imaxabs() which we never use.
  65  */
  66 #include <stdint.h>
  67
  68 #if U_PLATFORM == U_PF_OS390
  69 /* The features header is needed to get (u)int64_t sometimes. */
  70 #include <features.h>
  71 /* z/OS has <stdint.h>, but some versions are missing uint8_t (APAR PK62248). */
  72 #if !defined(__uint8_t)
  73 #define __uint8_t 1
  74 typedef unsigned char uint8_t;
  75 #endif
  76 #endif /* U_PLATFORM == U_PF_OS390 */
  77
  78 #elif U_HAVE_INTTYPES_H
  79
  80 #   include <inttypes.h>
  81
  82 #else /* neither U_HAVE_STDINT_H nor U_HAVE_INTTYPES_H */
  83
  84 #if ! U_HAVE_INT8_T
  85 typedef signed char int8_t;
  86 #endif
  87
  88 #if ! U_HAVE_UINT8_T
  89 typedef unsigned char uint8_t;
  90 #endif
  91
  92 #if ! U_HAVE_INT16_T
  93 typedef signed short int16_t;
  94 #endif
  95
  96 #if ! U_HAVE_UINT16_T
  97 typedef unsigned short uint16_t;
  98 #endif
  99
 100 #if ! U_HAVE_INT32_T
 101 typedef signed int int32_t;
 102 #endif
 103
 104 #if ! U_HAVE_UINT32_T
 105 typedef unsigned int uint32_t;
 106 #endif
 107
 108 #if ! U_HAVE_INT64_T
 109 #ifdef _MSC_VER
 110     typedef signed __int64 int64_t;
 111 #else
 112     typedef signed long long int64_t;
 113 #endif
 114 #endif
 115
 116 #if ! U_HAVE_UINT64_T
 117 #ifdef _MSC_VER
 118     typedef unsigned __int64 uint64_t;
 119 #else
 120     typedef unsigned long long uint64_t;
 121 #endif
 122 #endif
 123
 124 #endif /* U_HAVE_STDINT_H / U_HAVE_INTTYPES_H */
 125
 126 #endif /* _PTYPES_H */