/* ****************************************************************************** * * Copyright (C) 1999-2014, International Business Machines * Corporation and others. All Rights Reserved. * ****************************************************************************** * file name: umachine.h * encoding: US-ASCII * tab size: 8 (not used) * indentation:4 * * created on: 1999sep13 * created by: Markus W. Scherer * * This file defines basic types and constants for ICU to be * platform-independent. umachine.h and utf.h are included into * utypes.h to provide all the general definitions for ICU. * All of these definitions used to be in utypes.h before * the UTF-handling macros made this unmaintainable. */ #ifndef __UMACHINE_H__ #define __UMACHINE_H__ /** * \file * \brief Basic types and constants for UTF * * <h2> Basic types and constants for UTF </h2> * This file defines basic types and constants for utf.h to be * platform-independent. umachine.h and utf.h are included into * utypes.h to provide all the general definitions for ICU. * All of these definitions used to be in utypes.h before * the UTF-handling macros made this unmaintainable. * */ /*==========================================================================*/ /* Include platform-dependent definitions */ /* which are contained in the platform-specific file platform.h */ /*==========================================================================*/ #include "unicode/ptypes.h" /* platform.h is included in ptypes.h */ /* * ANSI C headers: * stddef.h defines wchar_t */ #include <stddef.h> /*==========================================================================*/ /* For C wrappers, we use the symbol U_STABLE. */ /* This works properly if the includer is C or C++. */ /* Functions are declared U_STABLE return-type U_EXPORT2 function-name()... */ /*==========================================================================*/ /** * \def U_CFUNC * This is used in a declaration of a library private ICU C function. * @stable ICU 2.4 */ /** * \def U_CDECL_BEGIN * This is used to begin a declaration of a library private ICU C API. * @stable ICU 2.4 */ /** * \def U_CDECL_END * This is used to end a declaration of a library private ICU C API * @stable ICU 2.4 */ #ifdef __cplusplus # define U_CFUNC extern "C" # define U_CDECL_BEGIN extern "C" { # define U_CDECL_END } #else # define U_CFUNC extern # define U_CDECL_BEGIN # define U_CDECL_END #endif #ifndef U_ATTRIBUTE_DEPRECATED /** * \def U_ATTRIBUTE_DEPRECATED * This is used for GCC specific attributes * @internal */ #if U_GCC_MAJOR_MINOR >= 302 # define U_ATTRIBUTE_DEPRECATED __attribute__ ((deprecated)) /** * \def U_ATTRIBUTE_DEPRECATED * This is used for Visual C++ specific attributes * @internal */ #elif defined(_MSC_VER) && (_MSC_VER >= 1400) # define U_ATTRIBUTE_DEPRECATED __declspec(deprecated) #else # define U_ATTRIBUTE_DEPRECATED #endif #endif /** This is used to declare a function as a public ICU C API @stable ICU 2.0*/ #define U_CAPI U_CFUNC U_EXPORT /** This is used to declare a function as a stable public ICU C API*/ #define U_STABLE U_CAPI /** This is used to declare a function as a draft public ICU C API */ #define U_DRAFT U_CAPI /** This is used to declare a function as a deprecated public ICU C API */ #define U_DEPRECATED U_CAPI U_ATTRIBUTE_DEPRECATED /** This is used to declare a function as an obsolete public ICU C API */ #define U_OBSOLETE U_CAPI /** This is used to declare a function as an internal ICU C API */ #define U_INTERNAL U_CAPI /** * \def U_OVERRIDE * Defined to the C++11 "override" keyword if available. * Denotes a class or member which is an override of the base class. * May result in an error if it applied to something not an override. * @internal */ /** * \def U_FINAL * Defined to the C++11 "final" keyword if available. * Denotes a class or member which may not be overridden in subclasses. * May result in an error if subclasses attempt to override. * @internal */ #if defined(__cplusplus) && __cplusplus>=201103L /* C++11 */ #ifndef U_OVERRIDE #define U_OVERRIDE override #endif #ifndef U_FINAL #define U_FINAL final #endif #else /* not C++11 - define to nothing */ #ifndef U_OVERRIDE #define U_OVERRIDE #endif #ifndef U_FINAL #define U_FINAL #endif #endif /*==========================================================================*/ /* limits for int32_t etc., like in POSIX inttypes.h */ /*==========================================================================*/ #ifndef INT8_MIN /** The smallest value an 8 bit signed integer can hold @stable ICU 2.0 */ # define INT8_MIN ((int8_t)(-128)) #endif #ifndef INT16_MIN /** The smallest value a 16 bit signed integer can hold @stable ICU 2.0 */ # define INT16_MIN ((int16_t)(-32767-1)) #endif #ifndef INT32_MIN /** The smallest value a 32 bit signed integer can hold @stable ICU 2.0 */ # define INT32_MIN ((int32_t)(-2147483647-1)) #endif #ifndef INT8_MAX /** The largest value an 8 bit signed integer can hold @stable ICU 2.0 */ # define INT8_MAX ((int8_t)(127)) #endif #ifndef INT16_MAX /** The largest value a 16 bit signed integer can hold @stable ICU 2.0 */ # define INT16_MAX ((int16_t)(32767)) #endif #ifndef INT32_MAX /** The largest value a 32 bit signed integer can hold @stable ICU 2.0 */ # define INT32_MAX ((int32_t)(2147483647)) #endif #ifndef UINT8_MAX /** The largest value an 8 bit unsigned integer can hold @stable ICU 2.0 */ # define UINT8_MAX ((uint8_t)(255U)) #endif #ifndef UINT16_MAX /** The largest value a 16 bit unsigned integer can hold @stable ICU 2.0 */ # define UINT16_MAX ((uint16_t)(65535U)) #endif #ifndef UINT32_MAX /** The largest value a 32 bit unsigned integer can hold @stable ICU 2.0 */ # define UINT32_MAX ((uint32_t)(4294967295U)) #endif #if defined(U_INT64_T_UNAVAILABLE) # error int64_t is required for decimal format and rule-based number format. #else # ifndef INT64_C /** * Provides a platform independent way to specify a signed 64-bit integer constant. * note: may be wrong for some 64 bit platforms - ensure your compiler provides INT64_C * @stable ICU 2.8 */ # define INT64_C(c) c ## LL # endif # ifndef UINT64_C /** * Provides a platform independent way to specify an unsigned 64-bit integer constant. * note: may be wrong for some 64 bit platforms - ensure your compiler provides UINT64_C * @stable ICU 2.8 */ # define UINT64_C(c) c ## ULL # endif # ifndef U_INT64_MIN /** The smallest value a 64 bit signed integer can hold @stable ICU 2.8 */ # define U_INT64_MIN ((int64_t)(INT64_C(-9223372036854775807)-1)) # endif # ifndef U_INT64_MAX /** The largest value a 64 bit signed integer can hold @stable ICU 2.8 */ # define U_INT64_MAX ((int64_t)(INT64_C(9223372036854775807))) # endif # ifndef U_UINT64_MAX /** The largest value a 64 bit unsigned integer can hold @stable ICU 2.8 */ # define U_UINT64_MAX ((uint64_t)(UINT64_C(18446744073709551615))) # endif #endif /*==========================================================================*/ /* Boolean data type */ /*==========================================================================*/ /** The ICU boolean type @stable ICU 2.0 */ typedef int8_t UBool; #ifndef TRUE /** The TRUE value of a UBool @stable ICU 2.0 */ # define TRUE 1 #endif #ifndef FALSE /** The FALSE value of a UBool @stable ICU 2.0 */ # define FALSE 0 #endif /*==========================================================================*/ /* Unicode data types */ /*==========================================================================*/ /* wchar_t-related definitions -------------------------------------------- */ /* * \def U_WCHAR_IS_UTF16 * Defined if wchar_t uses UTF-16. * * @stable ICU 2.0 */ /* * \def U_WCHAR_IS_UTF32 * Defined if wchar_t uses UTF-32. * * @stable ICU 2.0 */ #if !defined(U_WCHAR_IS_UTF16) && !defined(U_WCHAR_IS_UTF32) # ifdef __STDC_ISO_10646__ # if (U_SIZEOF_WCHAR_T==2) # define U_WCHAR_IS_UTF16 # elif (U_SIZEOF_WCHAR_T==4) # define U_WCHAR_IS_UTF32 # endif # elif defined __UCS2__ # if (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400) && (U_SIZEOF_WCHAR_T==2) # define U_WCHAR_IS_UTF16 # endif # elif defined(__UCS4__) || (U_PLATFORM == U_PF_OS400 && defined(__UTF32__)) # if (U_SIZEOF_WCHAR_T==4) # define U_WCHAR_IS_UTF32 # endif # elif U_PLATFORM_IS_DARWIN_BASED || (U_SIZEOF_WCHAR_T==4 && U_PLATFORM_IS_LINUX_BASED) # define U_WCHAR_IS_UTF32 # elif U_PLATFORM_HAS_WIN32_API # define U_WCHAR_IS_UTF16 # endif #endif /* UChar and UChar32 definitions -------------------------------------------- */ /** Number of bytes in a UChar. @stable ICU 2.0 */ #define U_SIZEOF_UCHAR 2 /** * \var UChar * Define UChar to be UCHAR_TYPE, if that is #defined (for example, to char16_t), * or wchar_t if that is 16 bits wide; always assumed to be unsigned. * If neither is available, then define UChar to be uint16_t. * * This makes the definition of UChar platform-dependent * but allows direct string type compatibility with platforms with * 16-bit wchar_t types. * * @stable ICU 4.4 */ #if defined(UCHAR_TYPE) typedef UCHAR_TYPE UChar; /* Not #elif U_HAVE_CHAR16_T -- because that is type-incompatible with pre-C++11 callers typedef char16_t UChar; */ #elif U_SIZEOF_WCHAR_T==2 typedef wchar_t UChar; #elif defined(__CHAR16_TYPE__) typedef __CHAR16_TYPE__ UChar; #else typedef uint16_t UChar; #endif /** * Define UChar32 as a type for single Unicode code points. * UChar32 is a signed 32-bit integer (same as int32_t). * * The Unicode code point range is 0..0x10ffff. * All other values (negative or >=0x110000) are illegal as Unicode code points. * They may be used as sentinel values to indicate "done", "error" * or similar non-code point conditions. * * Before ICU 2.4 (Jitterbug 2146), UChar32 was defined * to be wchar_t if that is 32 bits wide (wchar_t may be signed or unsigned) * or else to be uint32_t. * That is, the definition of UChar32 was platform-dependent. * * @see U_SENTINEL * @stable ICU 2.4 */ typedef int32_t UChar32; /** * This value is intended for sentinel values for APIs that * (take or) return single code points (UChar32). * It is outside of the Unicode code point range 0..0x10ffff. * * For example, a "done" or "error" value in a new API * could be indicated with U_SENTINEL. * * ICU APIs designed before ICU 2.4 usually define service-specific "done" * values, mostly 0xffff. * Those may need to be distinguished from * actual U+ffff text contents by calling functions like * CharacterIterator::hasNext() or UnicodeString::length(). * * @return -1 * @see UChar32 * @stable ICU 2.4 */ #define U_SENTINEL (-1) #include "unicode/urename.h" #endif