ICU 73.2
73.2
common
unicode
umachine.h
Go to the documentation of this file.
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// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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******************************************************************************
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*
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* Copyright (C) 1999-2015, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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******************************************************************************
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* file name: umachine.h
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* encoding: UTF-8
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 1999sep13
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* created by: Markus W. Scherer
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*
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* This file defines basic types and constants for ICU to be
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* platform-independent. umachine.h and utf.h are included into
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* utypes.h to provide all the general definitions for ICU.
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* All of these definitions used to be in utypes.h before
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* the UTF-handling macros made this unmaintainable.
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*/
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#ifndef __UMACHINE_H__
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#define __UMACHINE_H__
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/*==========================================================================*/
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/* Include platform-dependent definitions */
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/* which are contained in the platform-specific file platform.h */
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/*==========================================================================*/
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#include "
unicode/ptypes.h
"
/* platform.h is included in ptypes.h */
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/*
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* ANSI C headers:
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* stddef.h defines wchar_t
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*/
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#include <stdbool.h>
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#include <stddef.h>
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/*==========================================================================*/
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/* For C wrappers, we use the symbol U_CAPI. */
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/* This works properly if the includer is C or C++. */
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/* Functions are declared U_CAPI return-type U_EXPORT2 function-name()... */
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/*==========================================================================*/
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#ifdef __cplusplus
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# define U_CFUNC extern "C"
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# define U_CDECL_BEGIN extern "C" {
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# define U_CDECL_END }
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#else
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# define U_CFUNC extern
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# define U_CDECL_BEGIN
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# define U_CDECL_END
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#endif
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#ifndef U_ATTRIBUTE_DEPRECATED
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#if U_GCC_MAJOR_MINOR >= 302
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# define U_ATTRIBUTE_DEPRECATED __attribute__ ((deprecated))
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#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
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# define U_ATTRIBUTE_DEPRECATED __declspec(deprecated)
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#else
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# define U_ATTRIBUTE_DEPRECATED
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#endif
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#endif
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#define U_CAPI U_CFUNC U_EXPORT
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#define U_STABLE U_CAPI
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#define U_DRAFT U_CAPI
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#define U_DEPRECATED U_CAPI U_ATTRIBUTE_DEPRECATED
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#define U_OBSOLETE U_CAPI
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#define U_INTERNAL U_CAPI
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// Before ICU 65, function-like, multi-statement ICU macros were just defined as
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// series of statements wrapped in { } blocks and the caller could choose to
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// either treat them as if they were actual functions and end the invocation
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// with a trailing ; creating an empty statement after the block or else omit
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// this trailing ; using the knowledge that the macro would expand to { }.
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//
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// But doing so doesn't work well with macros that look like functions and
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// compiler warnings about empty statements (ICU-20601) and ICU 65 therefore
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// switches to the standard solution of wrapping such macros in do { } while.
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//
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// This will however break existing code that depends on being able to invoke
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// these macros without a trailing ; so to be able to remain compatible with
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// such code the wrapper is itself defined as macros so that it's possible to
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// build ICU 65 and later with the old macro behaviour, like this:
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//
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// export CPPFLAGS='-DUPRV_BLOCK_MACRO_BEGIN="" -DUPRV_BLOCK_MACRO_END=""'
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// runConfigureICU ...
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//
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#ifndef UPRV_BLOCK_MACRO_BEGIN
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#define UPRV_BLOCK_MACRO_BEGIN do
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#endif
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#ifndef UPRV_BLOCK_MACRO_END
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#define UPRV_BLOCK_MACRO_END while (false)
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#endif
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/*==========================================================================*/
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/* limits for int32_t etc., like in POSIX inttypes.h */
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/*==========================================================================*/
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#ifndef INT8_MIN
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# define INT8_MIN ((int8_t)(-128))
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#endif
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#ifndef INT16_MIN
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# define INT16_MIN ((int16_t)(-32767-1))
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#endif
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#ifndef INT32_MIN
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# define INT32_MIN ((int32_t)(-2147483647-1))
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#endif
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#ifndef INT8_MAX
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# define INT8_MAX ((int8_t)(127))
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#endif
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#ifndef INT16_MAX
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# define INT16_MAX ((int16_t)(32767))
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#endif
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#ifndef INT32_MAX
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# define INT32_MAX ((int32_t)(2147483647))
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#endif
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#ifndef UINT8_MAX
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# define UINT8_MAX ((uint8_t)(255U))
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#endif
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#ifndef UINT16_MAX
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# define UINT16_MAX ((uint16_t)(65535U))
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#endif
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#ifndef UINT32_MAX
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# define UINT32_MAX ((uint32_t)(4294967295U))
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#endif
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#if defined(U_INT64_T_UNAVAILABLE)
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# error int64_t is required for decimal format and rule-based number format.
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#else
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# ifndef INT64_C
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# define INT64_C(c) c ## LL
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# endif
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# ifndef UINT64_C
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# define UINT64_C(c) c ## ULL
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# endif
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# ifndef U_INT64_MIN
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# define U_INT64_MIN ((int64_t)(INT64_C(-9223372036854775807)-1))
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# endif
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# ifndef U_INT64_MAX
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# define U_INT64_MAX ((int64_t)(INT64_C(9223372036854775807)))
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# endif
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# ifndef U_UINT64_MAX
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# define U_UINT64_MAX ((uint64_t)(UINT64_C(18446744073709551615)))
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# endif
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#endif
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/*==========================================================================*/
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/* Boolean data type */
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/*==========================================================================*/
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typedef
int8_t
UBool
;
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#ifdef U_DEFINE_FALSE_AND_TRUE
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// Use the predefined value.
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#else
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// Default to avoiding collision with non-macro definitions of FALSE & TRUE.
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# define U_DEFINE_FALSE_AND_TRUE 0
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#endif
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#if U_DEFINE_FALSE_AND_TRUE || defined(U_IN_DOXYGEN)
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#ifndef TRUE
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# define TRUE 1
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#endif
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#ifndef FALSE
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# define FALSE 0
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#endif
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#endif // U_DEFINE_FALSE_AND_TRUE
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/*==========================================================================*/
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/* Unicode data types */
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/*==========================================================================*/
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/* wchar_t-related definitions -------------------------------------------- */
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/*
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* \def U_WCHAR_IS_UTF16
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* Defined if wchar_t uses UTF-16.
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*
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* @stable ICU 2.0
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*/
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/*
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* \def U_WCHAR_IS_UTF32
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* Defined if wchar_t uses UTF-32.
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*
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* @stable ICU 2.0
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*/
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#if !defined(U_WCHAR_IS_UTF16) && !defined(U_WCHAR_IS_UTF32)
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# ifdef __STDC_ISO_10646__
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# if (U_SIZEOF_WCHAR_T==2)
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# define U_WCHAR_IS_UTF16
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# elif (U_SIZEOF_WCHAR_T==4)
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# define U_WCHAR_IS_UTF32
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# endif
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# elif defined __UCS2__
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# if (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400) && (U_SIZEOF_WCHAR_T==2)
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# define U_WCHAR_IS_UTF16
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# endif
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# elif defined(__UCS4__) || (U_PLATFORM == U_PF_OS400 && defined(__UTF32__))
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# if (U_SIZEOF_WCHAR_T==4)
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# define U_WCHAR_IS_UTF32
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# endif
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# elif U_PLATFORM_IS_DARWIN_BASED || (U_SIZEOF_WCHAR_T==4 && U_PLATFORM_IS_LINUX_BASED)
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# define U_WCHAR_IS_UTF32
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# elif U_PLATFORM_HAS_WIN32_API
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# define U_WCHAR_IS_UTF16
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# endif
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#endif
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/* UChar and UChar32 definitions -------------------------------------------- */
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#define U_SIZEOF_UCHAR 2
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#if defined(_MSC_VER) && (_MSC_VER < 1900)
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// Versions of Visual Studio/MSVC below 2015 do not support char16_t as a real type,
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// and instead use a typedef. https://msdn.microsoft.com/library/bb531344.aspx
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# define U_CHAR16_IS_TYPEDEF 1
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#else
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# define U_CHAR16_IS_TYPEDEF 0
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#endif
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#if 1
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// #if 1 is normal. UChar defaults to char16_t in C++.
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// For configuration testing of UChar=uint16_t temporarily change this to #if 0.
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// The intltest Makefile #defines UCHAR_TYPE=char16_t,
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// so we only #define it to uint16_t if it is undefined so far.
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#elif !defined(UCHAR_TYPE)
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# define UCHAR_TYPE uint16_t
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#endif
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#if defined(U_COMBINED_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION) || \
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defined(U_I18N_IMPLEMENTATION) || defined(U_IO_IMPLEMENTATION)
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// Inside the ICU library code, never configurable.
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typedef
char16_t
UChar
;
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#elif defined(UCHAR_TYPE)
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typedef
UCHAR_TYPE
UChar
;
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#elif U_CPLUSPLUS_VERSION != 0
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typedef
char16_t
UChar
;
// C++
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#else
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typedef
uint16_t
UChar
;
// C
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#endif
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#if U_SIZEOF_WCHAR_T==2
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typedef
wchar_t
OldUChar
;
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#elif defined(__CHAR16_TYPE__)
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typedef
__CHAR16_TYPE__
OldUChar
;
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#else
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typedef
uint16_t
OldUChar
;
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#endif
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typedef
int32_t
UChar32
;
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#define U_SENTINEL (-1)
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#include "unicode/urename.h"
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#endif
ptypes.h
C API: Definitions of integer types of various widths.
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition:
umachine.h:247
UChar32
int32_t UChar32
Define UChar32 as a type for single Unicode code points.
Definition:
umachine.h:435
UChar
char16_t UChar
Definition:
umachine.h:386
OldUChar
uint16_t OldUChar
Definition:
umachine.h:415
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