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- /*
- ******************************************************************************
- *
- * Copyright (C) 1999-2015, 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 U_CPLUSPLUS_VERSION >= 11
- /* 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
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