include/unicode/ptypes.h

0001 // © 2016 and later: Unicode, Inc. and others.
0002 // License & terms of use: http://www.unicode.org/copyright.html
0003 /*
0004 ******************************************************************************
0005 *
0006 *   Copyright (C) 1997-2012, International Business Machines
0007 *   Corporation and others.  All Rights Reserved.
0008 *
0009 ******************************************************************************
0010 *
0011 *  FILE NAME : ptypes.h
0012 *
0013 *   Date        Name        Description
0014 *   05/13/98    nos         Creation (content moved here from ptypes.h).
0015 *   03/02/99    stephen     Added AS400 support.
0016 *   03/30/99    stephen     Added Linux support.
0017 *   04/13/99    stephen     Reworked for autoconf.
0018 *   09/18/08    srl         Moved basic types back to ptypes.h from platform.h
0019 ******************************************************************************
0020 */
0021
0022 /**
0023  * \file
0024  * \brief C API: Definitions of integer types of various widths
0025  */
0026
0027 #ifndef _PTYPES_H
0028 #define _PTYPES_H
0029
0030 /**
0031  * \def __STDC_LIMIT_MACROS
0032  * According to the Linux stdint.h, the ISO C99 standard specifies that in C++ implementations
0033  * macros like INT32_MIN and UINTPTR_MAX should only be defined if explicitly requested.
0034  * We need to define __STDC_LIMIT_MACROS before including stdint.h in C++ code
0035  * that uses such limit macros.
0036  * @internal
0037  */
0038 #ifndef __STDC_LIMIT_MACROS
0039 #define __STDC_LIMIT_MACROS
0040 #endif
0041
0042 /* NULL, size_t, wchar_t */
0043 #include <stddef.h>
0044
0045 /*
0046  * If all compilers provided all of the C99 headers and types,
0047  * we would just unconditionally #include <stdint.h> here
0048  * and not need any of the stuff after including platform.h.
0049  */
0050
0051 /* Find out if we have stdint.h etc. */
0052 #include "unicode/platform.h"
0053
0054 /*===========================================================================*/
0055 /* Generic data types                                                        */
0056 /*===========================================================================*/
0057
0058 /* If your platform does not have the <stdint.h> header, you may
0059    need to edit the typedefs in the #else section below.
0060    Use #if...#else...#endif with predefined compiler macros if possible. */
0061 #if U_HAVE_STDINT_H
0062
0063 /*
0064  * We mostly need <stdint.h> (which defines the standard integer types) but not <inttypes.h>.
0065  * <inttypes.h> includes <stdint.h> and adds the printf/scanf helpers PRId32, SCNx16 etc.
0066  * which we almost never use, plus stuff like imaxabs() which we never use.
0067  */
0068 #include <stdint.h>
0069
0070 #if U_PLATFORM == U_PF_OS390
0071 /* The features header is needed to get (u)int64_t sometimes. */
0072 #include <features.h>
0073 /* z/OS has <stdint.h>, but some versions are missing uint8_t (APAR PK62248). */
0074 #if !defined(__uint8_t)
0075 #define __uint8_t 1
0076 typedef unsigned char uint8_t;
0077 #endif
0078 #endif /* U_PLATFORM == U_PF_OS390 */
0079
0080 #elif U_HAVE_INTTYPES_H
0081
0082 #   include <inttypes.h>
0083
0084 #else /* neither U_HAVE_STDINT_H nor U_HAVE_INTTYPES_H */
0085
0086 /// \cond
0087 #if ! U_HAVE_INT8_T
0088 typedef signed char int8_t;
0089 #endif
0090
0091 #if ! U_HAVE_UINT8_T
0092 typedef unsigned char uint8_t;
0093 #endif
0094
0095 #if ! U_HAVE_INT16_T
0096 typedef signed short int16_t;
0097 #endif
0098
0099 #if ! U_HAVE_UINT16_T
0100 typedef unsigned short uint16_t;
0101 #endif
0102
0103 #if ! U_HAVE_INT32_T
0104 typedef signed int int32_t;
0105 #endif
0106
0107 #if ! U_HAVE_UINT32_T
0108 typedef unsigned int uint32_t;
0109 #endif
0110
0111 #if ! U_HAVE_INT64_T
0112 #ifdef _MSC_VER
0113     typedef signed __int64 int64_t;
0114 #else
0115     typedef signed long long int64_t;
0116 #endif
0117 #endif
0118
0119 #if ! U_HAVE_UINT64_T
0120 #ifdef _MSC_VER
0121     typedef unsigned __int64 uint64_t;
0122 #else
0123     typedef unsigned long long uint64_t;
0124 #endif
0125 #endif
0126 /// \endcond
0127
0128 #endif /* U_HAVE_STDINT_H / U_HAVE_INTTYPES_H */
0129
0130 #endif /* _PTYPES_H */