[apple/javascriptcore.git] / icu / unicode / umachine.h

/*
******************************************************************************
*
*   Copyright (C) 1999-2010, 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 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.
*/

#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             */
/*==========================================================================*/

#if defined(U_PALMOS)
#   include "unicode/ppalmos.h"
#elif !defined(__MINGW32__) && (defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64))
#ifdef CYGWINMSVC
#   include "unicode/platform.h"
#endif
#   include "unicode/pwin32.h"
#else
#   include "unicode/ptypes.h" /* platform.h is included in ptypes.h */
#endif

/*
 * ANSI C headers:
 * stddef.h defines wchar_t
 */
#include <stddef.h>

/*==========================================================================*/
/* XP_CPLUSPLUS is a cross-platform symbol which should be defined when     */
/* using C++.  It should not be defined when compiling under C.             */
/*==========================================================================*/

#ifdef __cplusplus
#   ifndef XP_CPLUSPLUS
#       define XP_CPLUSPLUS
#   endif
#else
#   undef XP_CPLUSPLUS
#endif

/*==========================================================================*/
/* 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 XP_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

/**
 * \def U_ATTRIBUTE_DEPRECATED
 *  This is used for GCC specific attributes
 * @internal
 */
#if defined(__GNUC__) && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2))
#    define U_ATTRIBUTE_DEPRECATED __attribute__ ((deprecated))
/**
 * \def U_ATTRIBUTE_DEPRECATED
 * This is used for Visual C++ specific attributes 
 * @internal
 */
#elif defined(U_WINDOWS) && defined(_MSC_VER) && (_MSC_VER >= 1400)
#    define U_ATTRIBUTE_DEPRECATED __declspec(deprecated)
#else
#    define U_ATTRIBUTE_DEPRECATED
#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

/*==========================================================================*/
/* 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_HAVE_WCHAR_H
 * Indicates whether <wchar.h> is available (1) or not (0). Set to 1 by default.
 *
 * @stable ICU 2.0
 */
#ifndef U_HAVE_WCHAR_H
#   define U_HAVE_WCHAR_H 1
#endif

/**
 * \def U_SIZEOF_WCHAR_T
 * U_SIZEOF_WCHAR_T==sizeof(wchar_t) (0 means it is not defined or autoconf could not set it)
 *
 * @stable ICU 2.0
 */
#if U_SIZEOF_WCHAR_T==0
#   undef U_SIZEOF_WCHAR_T
#   define U_SIZEOF_WCHAR_T 4
#endif

/*
 * \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 (__OS390__ || __OS400__) && (U_SIZEOF_WCHAR_T==2)
#           define U_WCHAR_IS_UTF16
#       endif
#   elif defined __UCS4__
#       if (U_SIZEOF_WCHAR_T==4)
#           define U_WCHAR_IS_UTF32
#       endif
#   elif defined(U_WINDOWS)
#       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 wchar_t if that is 16 bits wide; always assumed to be unsigned.
 * If wchar_t is not 16 bits wide, then define UChar to be uint16_t or char16_t because GCC >=4.4
 * can handle UTF16 string literals.
 * This makes the definition of UChar platform-dependent
 * but allows direct string type compatibility with platforms with
 * 16-bit wchar_t types.
 *
 * @draft ICU 4.4
 */

/* Define UChar to be compatible with wchar_t if possible. */
#if U_SIZEOF_WCHAR_T==2
    typedef wchar_t UChar;
#elif U_GNUC_UTF16_STRING
#if defined _GCC_
    typedef __CHAR16_TYPE__ char16_t;
#endif
    typedef char16_t 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;

/*==========================================================================*/
/* U_INLINE and U_ALIGN_CODE   Set default values if these are not already  */
/*                             defined.  Definitions normally are in        */
/*                             platform.h or the corresponding file for     */
/*                             the OS in use.                               */
/*==========================================================================*/

#ifndef U_HIDE_INTERNAL_API

/**
 * \def U_ALIGN_CODE
 * This is used to align code fragments to a specific byte boundary.
 * This is useful for getting consistent performance test results.
 * @internal
 */
#ifndef U_ALIGN_CODE
#   define U_ALIGN_CODE(n)
#endif

#endif /* U_HIDE_INTERNAL_API */

/**
 * \def U_INLINE
 * This is used to request inlining of a function, on platforms and languages which support it.
 */
 
#ifndef U_INLINE
#   ifdef XP_CPLUSPLUS
#       define U_INLINE inline
#   else
#       define U_INLINE
#   endif
#endif

#include "unicode/urename.h"

#endif
Commit	Line	Data
b37bf2e1 A	1	/*
	2	******************************************************************************
	3	*
93a37866	4	* Copyright (C) 1999-2010, International Business Machines
b37bf2e1 A	5	* Corporation and others. All Rights Reserved.
	6	*
	7	******************************************************************************
	8	* file name: umachine.h
	9	* encoding: US-ASCII
	10	* tab size: 8 (not used)
	11	* indentation:4
	12	*
	13	* created on: 1999sep13
	14	* created by: Markus W. Scherer
	15	*
	16	* This file defines basic types and constants for utf.h to be
	17	* platform-independent. umachine.h and utf.h are included into
	18	* utypes.h to provide all the general definitions for ICU.
	19	* All of these definitions used to be in utypes.h before
	20	* the UTF-handling macros made this unmaintainable.
	21	*/
	22
	23	#ifndef __UMACHINE_H__
	24	#define __UMACHINE_H__
	25
	26
	27	/**
	28	* \file
93a37866 A	29	* \brief Basic types and constants for UTF
93a37866 A	30	*
b37bf2e1 A	31	* <h2> Basic types and constants for UTF </h2>
	32	* This file defines basic types and constants for utf.h to be
	33	* platform-independent. umachine.h and utf.h are included into
	34	* utypes.h to provide all the general definitions for ICU.
	35	* All of these definitions used to be in utypes.h before
	36	* the UTF-handling macros made this unmaintainable.
93a37866	37	*
b37bf2e1 A	38	*/
	39	/==========================================================================/
	40	/* Include platform-dependent definitions */
	41	/* which are contained in the platform-specific file platform.h */
	42	/==========================================================================/
	43
93a37866 A	44	#if defined(U_PALMOS)
	45	# include "unicode/ppalmos.h"
	46	#elif !defined(__MINGW32__) && (defined(WIN32) \|\| defined(_WIN32) \|\| defined(WIN64) \|\| defined(_WIN64))
	47	#ifdef CYGWINMSVC
	48	# include "unicode/platform.h"
	49	#endif
b37bf2e1 A	50	# include "unicode/pwin32.h"
b37bf2e1 A	51	#else
93a37866	52	# include "unicode/ptypes.h" /* platform.h is included in ptypes.h */
b37bf2e1 A	53	#endif
	54
	55	/*
	56	* ANSI C headers:
	57	* stddef.h defines wchar_t
	58	*/
	59	#include <stddef.h>
	60
	61	/==========================================================================/
	62	/* XP_CPLUSPLUS is a cross-platform symbol which should be defined when */
	63	/* using C++. It should not be defined when compiling under C. */
	64	/==========================================================================/
	65
	66	#ifdef __cplusplus
	67	# ifndef XP_CPLUSPLUS
	68	# define XP_CPLUSPLUS
	69	# endif
	70	#else
	71	# undef XP_CPLUSPLUS
	72	#endif
	73
	74	/==========================================================================/
	75	/* For C wrappers, we use the symbol U_STABLE. */
	76	/* This works properly if the includer is C or C++. */
	77	/* Functions are declared U_STABLE return-type U_EXPORT2 function-name()... */
	78	/==========================================================================/
	79
	80	/**
	81	* \def U_CFUNC
	82	* This is used in a declaration of a library private ICU C function.
	83	* @stable ICU 2.4
	84	*/
	85
	86	/**
	87	* \def U_CDECL_BEGIN
	88	* This is used to begin a declaration of a library private ICU C API.
	89	* @stable ICU 2.4
	90	*/
	91
	92	/**
	93	* \def U_CDECL_END
93a37866	94	* This is used to end a declaration of a library private ICU C API
b37bf2e1 A	95	* @stable ICU 2.4
	96	*/
	97
	98	#ifdef XP_CPLUSPLUS
	99	# define U_CFUNC extern "C"
	100	# define U_CDECL_BEGIN extern "C" {
	101	# define U_CDECL_END }
	102	#else
	103	# define U_CFUNC extern
	104	# define U_CDECL_BEGIN
	105	# define U_CDECL_END
	106	#endif
	107
	108	/**
93a37866 A	109	* \def U_ATTRIBUTE_DEPRECATED
	110	* This is used for GCC specific attributes
	111	* @internal
b37bf2e1	112	*/
93a37866 A	113	#if defined(__GNUC__) && (__GNUC__ > 3 \|\| (__GNUC__ == 3 && __GNUC_MINOR__ >= 2))
93a37866 A	114	# define U_ATTRIBUTE_DEPRECATED __attribute__ ((deprecated))
b37bf2e1	115	/**
93a37866 A	116	* \def U_ATTRIBUTE_DEPRECATED
	117	* This is used for Visual C++ specific attributes
	118	* @internal
b37bf2e1	119	*/
93a37866 A	120	#elif defined(U_WINDOWS) && defined(_MSC_VER) && (_MSC_VER >= 1400)
93a37866 A	121	# define U_ATTRIBUTE_DEPRECATED __declspec(deprecated)
b37bf2e1	122	#else
93a37866	123	# define U_ATTRIBUTE_DEPRECATED
b37bf2e1	124	#endif
b37bf2e1 A	125	/** This is used to declare a function as a public ICU C API @stable ICU 2.0*/
b37bf2e1 A	126	#define U_CAPI U_CFUNC U_EXPORT
93a37866	127	/** This is used to declare a function as a stable public ICU C API*/
b37bf2e1	128	#define U_STABLE U_CAPI
93a37866	129	/** This is used to declare a function as a draft public ICU C API */
b37bf2e1	130	#define U_DRAFT U_CAPI
93a37866 A	131	/** This is used to declare a function as a deprecated public ICU C API */
	132	#define U_DEPRECATED U_CAPI U_ATTRIBUTE_DEPRECATED
	133	/** This is used to declare a function as an obsolete public ICU C API */
b37bf2e1	134	#define U_OBSOLETE U_CAPI
93a37866	135	/** This is used to declare a function as an internal ICU C API */
b37bf2e1 A	136	#define U_INTERNAL U_CAPI
	137
	138	/==========================================================================/
	139	/* limits for int32_t etc., like in POSIX inttypes.h */
	140	/==========================================================================/
	141
	142	#ifndef INT8_MIN
	143	/** The smallest value an 8 bit signed integer can hold @stable ICU 2.0 */
	144	# define INT8_MIN ((int8_t)(-128))
	145	#endif
	146	#ifndef INT16_MIN
	147	/** The smallest value a 16 bit signed integer can hold @stable ICU 2.0 */
	148	# define INT16_MIN ((int16_t)(-32767-1))
	149	#endif
	150	#ifndef INT32_MIN
	151	/** The smallest value a 32 bit signed integer can hold @stable ICU 2.0 */
	152	# define INT32_MIN ((int32_t)(-2147483647-1))
	153	#endif
	154
	155	#ifndef INT8_MAX
	156	/** The largest value an 8 bit signed integer can hold @stable ICU 2.0 */
	157	# define INT8_MAX ((int8_t)(127))
	158	#endif
	159	#ifndef INT16_MAX
	160	/** The largest value a 16 bit signed integer can hold @stable ICU 2.0 */
	161	# define INT16_MAX ((int16_t)(32767))
	162	#endif
	163	#ifndef INT32_MAX
	164	/** The largest value a 32 bit signed integer can hold @stable ICU 2.0 */
	165	# define INT32_MAX ((int32_t)(2147483647))
	166	#endif
	167
	168	#ifndef UINT8_MAX
	169	/** The largest value an 8 bit unsigned integer can hold @stable ICU 2.0 */
	170	# define UINT8_MAX ((uint8_t)(255U))
	171	#endif
	172	#ifndef UINT16_MAX
	173	/** The largest value a 16 bit unsigned integer can hold @stable ICU 2.0 */
	174	# define UINT16_MAX ((uint16_t)(65535U))
	175	#endif
	176	#ifndef UINT32_MAX
	177	/** The largest value a 32 bit unsigned integer can hold @stable ICU 2.0 */
	178	# define UINT32_MAX ((uint32_t)(4294967295U))
	179	#endif
	180
	181	#if defined(U_INT64_T_UNAVAILABLE)
	182	# error int64_t is required for decimal format and rule-based number format.
	183	#else
	184	# ifndef INT64_C
	185	/**
	186	* Provides a platform independent way to specify a signed 64-bit integer constant.
	187	* note: may be wrong for some 64 bit platforms - ensure your compiler provides INT64_C
93a37866	188	* @stable ICU 2.8
b37bf2e1 A	189	*/
	190	# define INT64_C(c) c ## LL
	191	# endif
	192	# ifndef UINT64_C
	193	/**
	194	* Provides a platform independent way to specify an unsigned 64-bit integer constant.
	195	* note: may be wrong for some 64 bit platforms - ensure your compiler provides UINT64_C
93a37866	196	* @stable ICU 2.8
b37bf2e1 A	197	*/
	198	# define UINT64_C(c) c ## ULL
	199	# endif
	200	# ifndef U_INT64_MIN
	201	/** The smallest value a 64 bit signed integer can hold @stable ICU 2.8 */
	202	# define U_INT64_MIN ((int64_t)(INT64_C(-9223372036854775807)-1))
	203	# endif
	204	# ifndef U_INT64_MAX
	205	/** The largest value a 64 bit signed integer can hold @stable ICU 2.8 */
	206	# define U_INT64_MAX ((int64_t)(INT64_C(9223372036854775807)))
	207	# endif
	208	# ifndef U_UINT64_MAX
	209	/** The largest value a 64 bit unsigned integer can hold @stable ICU 2.8 */
	210	# define U_UINT64_MAX ((uint64_t)(UINT64_C(18446744073709551615)))
	211	# endif
	212	#endif
	213
	214	/==========================================================================/
	215	/* Boolean data type */
	216	/==========================================================================/
	217
	218	/** The ICU boolean type @stable ICU 2.0 */
	219	typedef int8_t UBool;
	220
	221	#ifndef TRUE
	222	/** The TRUE value of a UBool @stable ICU 2.0 */
	223	# define TRUE 1
	224	#endif
	225	#ifndef FALSE
	226	/** The FALSE value of a UBool @stable ICU 2.0 */
	227	# define FALSE 0
	228	#endif
	229
	230
	231	/==========================================================================/
	232	/* Unicode data types */
	233	/==========================================================================/
	234
	235	/* wchar_t-related definitions -------------------------------------------- */
	236
	237	/**
	238	* \def U_HAVE_WCHAR_H
	239	* Indicates whether <wchar.h> is available (1) or not (0). Set to 1 by default.
	240	*
	241	* @stable ICU 2.0
	242	*/
	243	#ifndef U_HAVE_WCHAR_H
	244	# define U_HAVE_WCHAR_H 1
	245	#endif
	246
	247	/**
	248	* \def U_SIZEOF_WCHAR_T
	249	* U_SIZEOF_WCHAR_T==sizeof(wchar_t) (0 means it is not defined or autoconf could not set it)
	250	*
	251	* @stable ICU 2.0
	252	*/
	253	#if U_SIZEOF_WCHAR_T==0
	254	# undef U_SIZEOF_WCHAR_T
	255	# define U_SIZEOF_WCHAR_T 4
	256	#endif
	257
	258	/*
	259	* \def U_WCHAR_IS_UTF16
	260	* Defined if wchar_t uses UTF-16.
261	*
262	* @stable ICU 2.0
263	*/
264	/*
265	* \def U_WCHAR_IS_UTF32
266	* Defined if wchar_t uses UTF-32.
267	*
268	* @stable ICU 2.0
269	*/
270	#if !defined(U_WCHAR_IS_UTF16) && !defined(U_WCHAR_IS_UTF32)
93a37866	271	# ifdef __STDC_ISO_10646__
b37bf2e1 A	272	# if (U_SIZEOF_WCHAR_T==2)
	273	# define U_WCHAR_IS_UTF16
	274	# elif (U_SIZEOF_WCHAR_T==4)
	275	# define U_WCHAR_IS_UTF32
	276	# endif
	277	# elif defined __UCS2__
	278	# if (__OS390__ \|\| __OS400__) && (U_SIZEOF_WCHAR_T==2)
	279	# define U_WCHAR_IS_UTF16
	280	# endif
	281	# elif defined __UCS4__
	282	# if (U_SIZEOF_WCHAR_T==4)
	283	# define U_WCHAR_IS_UTF32
	284	# endif
93a37866 A	285	# elif defined(U_WINDOWS)
93a37866 A	286	# define U_WCHAR_IS_UTF16
b37bf2e1 A	287	# endif
	288	#endif
	289
	290	/* UChar and UChar32 definitions -------------------------------------------- */
	291
	292	/** Number of bytes in a UChar. @stable ICU 2.0 */
	293	#define U_SIZEOF_UCHAR 2
	294
	295	/**
	296	* \var UChar
	297	* Define UChar to be wchar_t if that is 16 bits wide; always assumed to be unsigned.
93a37866 A	298	* If wchar_t is not 16 bits wide, then define UChar to be uint16_t or char16_t because GCC >=4.4
93a37866 A	299	* can handle UTF16 string literals.
b37bf2e1 A	300	* This makes the definition of UChar platform-dependent
	301	* but allows direct string type compatibility with platforms with
	302	* 16-bit wchar_t types.
	303	*
93a37866	304	* @draft ICU 4.4
b37bf2e1 A	305	*/
	306
	307	/* Define UChar to be compatible with wchar_t if possible. */
	308	#if U_SIZEOF_WCHAR_T==2
	309	typedef wchar_t UChar;
93a37866 A	310	#elif U_GNUC_UTF16_STRING
	311	#if defined _GCC_
	312	typedef __CHAR16_TYPE__ char16_t;
	313	#endif
	314	typedef char16_t UChar;
b37bf2e1 A	315	#else
	316	typedef uint16_t UChar;
	317	#endif
	318
	319	/**
	320	* Define UChar32 as a type for single Unicode code points.
	321	* UChar32 is a signed 32-bit integer (same as int32_t).
	322	*
	323	* The Unicode code point range is 0..0x10ffff.
	324	* All other values (negative or >=0x110000) are illegal as Unicode code points.
	325	* They may be used as sentinel values to indicate "done", "error"
	326	* or similar non-code point conditions.
	327	*
	328	* Before ICU 2.4 (Jitterbug 2146), UChar32 was defined
	329	* to be wchar_t if that is 32 bits wide (wchar_t may be signed or unsigned)
	330	* or else to be uint32_t.
	331	* That is, the definition of UChar32 was platform-dependent.
	332	*
	333	* @see U_SENTINEL
	334	* @stable ICU 2.4
	335	*/
	336	typedef int32_t UChar32;
	337
	338	/==========================================================================/
	339	/* U_INLINE and U_ALIGN_CODE Set default values if these are not already */
	340	/* defined. Definitions normally are in */
	341	/* platform.h or the corresponding file for */
	342	/* the OS in use. */
	343	/==========================================================================/
	344
93a37866 A	345	#ifndef U_HIDE_INTERNAL_API
93a37866 A	346
b37bf2e1 A	347	/**
	348	* \def U_ALIGN_CODE
	349	* This is used to align code fragments to a specific byte boundary.
	350	* This is useful for getting consistent performance test results.
	351	* @internal
	352	*/
	353	#ifndef U_ALIGN_CODE
	354	# define U_ALIGN_CODE(n)
	355	#endif
	356
93a37866 A	357	#endif /* U_HIDE_INTERNAL_API */
	358
	359	/**
	360	* \def U_INLINE
	361	* This is used to request inlining of a function, on platforms and languages which support it.
	362	*/
	363
b37bf2e1	364	#ifndef U_INLINE
93a37866 A	365	# ifdef XP_CPLUSPLUS
	366	# define U_INLINE inline
	367	# else
	368	# define U_INLINE
	369	# endif
b37bf2e1 A	370	#endif
	371
	372	#include "unicode/urename.h"
	373
	374	#endif