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      1 //  2016 and later: Unicode, Inc. and others.
      2 // License & terms of use: http://www.unicode.org/copyright.html
      3 /*
      4 **********************************************************************
      5 *   Copyright (C) 1996-2016, International Business Machines
      6 *   Corporation and others.  All Rights Reserved.
      7 **********************************************************************
      8 *
      9 *  FILE NAME : UTYPES.H (formerly ptypes.h)
     10 *
     11 *   Date        Name        Description
     12 *   12/11/96    helena      Creation.
     13 *   02/27/97    aliu        Added typedefs for UClassID, int8, int16, int32,
     14 *                           uint8, uint16, and uint32.
     15 *   04/01/97    aliu        Added XP_CPLUSPLUS and modified to work under C as
     16 *                            well as C++.
     17 *                           Modified to use memcpy() for uprv_arrayCopy() fns.
     18 *   04/14/97    aliu        Added TPlatformUtilities.
     19 *   05/07/97    aliu        Added import/export specifiers (replacing the old
     20 *                           broken EXT_CLASS).  Added version number for our
     21 *                           code.  Cleaned up header.
     22 *    6/20/97    helena      Java class name change.
     23 *   08/11/98    stephen     UErrorCode changed from typedef to enum
     24 *   08/12/98    erm         Changed T_ANALYTIC_PACKAGE_VERSION to 3
     25 *   08/14/98    stephen     Added uprv_arrayCopy() for int8_t, int16_t, int32_t
     26 *   12/09/98    jfitz       Added BUFFER_OVERFLOW_ERROR (bug 1100066)
     27 *   04/20/99    stephen     Cleaned up & reworked for autoconf.
     28 *                           Renamed to utypes.h.
     29 *   05/05/99    stephen     Changed to use <inttypes.h>
     30 *   12/07/99    helena      Moved copyright notice string from ucnv_bld.h here.
     31 *******************************************************************************
     32 */
     33 
     34 #ifndef UTYPES_H
     35 #define UTYPES_H
     36 
     37 
     38 #include "unicode/umachine.h"
     39 #include "unicode/uversion.h"
     40 #include "unicode/uconfig.h"
     41 #include <float.h>
     42 
     43 #if !U_NO_DEFAULT_INCLUDE_UTF_HEADERS
     44 #   include "unicode/utf.h"
     45 #endif
     46 
     47 /*!
     48  * \file
     49  * \brief Basic definitions for ICU, for both C and C++ APIs
     50  *
     51  * This file defines basic types, constants, and enumerations directly or
     52  * indirectly by including other header files, especially utf.h for the
     53  * basic character and string definitions and umachine.h for consistent
     54  * integer and other types.
     55  */
     56 
     57 
     58 /**
     59  * \def U_SHOW_CPLUSPLUS_API
     60  * @internal
     61  */
     62 #ifdef __cplusplus
     63 #   ifndef U_SHOW_CPLUSPLUS_API
     64 #       define U_SHOW_CPLUSPLUS_API 1
     65 #   endif
     66 #else
     67 #   undef U_SHOW_CPLUSPLUS_API
     68 #   define U_SHOW_CPLUSPLUS_API 0
     69 #endif
     70 
     71 /** @{ API visibility control */
     72 
     73 /**
     74  * \def U_HIDE_DRAFT_API
     75  * Define this to 1 to request that draft API be "hidden"
     76  * @internal
     77  */
     78 /**
     79  * \def U_HIDE_INTERNAL_API
     80  * Define this to 1 to request that internal API be "hidden"
     81  * @internal
     82  */
     83 #if !U_DEFAULT_SHOW_DRAFT && !defined(U_SHOW_DRAFT_API)
     84 #define U_HIDE_DRAFT_API 1
     85 #endif
     86 #if !U_DEFAULT_SHOW_DRAFT && !defined(U_SHOW_INTERNAL_API)
     87 #define U_HIDE_INTERNAL_API 1
     88 #endif
     89 
     90 /** @} */
     91 
     92 /*===========================================================================*/
     93 /* ICUDATA naming scheme                                                     */
     94 /*===========================================================================*/
     95 
     96 /**
     97  * \def U_ICUDATA_TYPE_LETTER
     98  *
     99  * This is a platform-dependent string containing one letter:
    100  * - b for big-endian, ASCII-family platforms
    101  * - l for little-endian, ASCII-family platforms
    102  * - e for big-endian, EBCDIC-family platforms
    103  * This letter is part of the common data file name.
    104  * @stable ICU 2.0
    105  */
    106 
    107 /**
    108  * \def U_ICUDATA_TYPE_LITLETTER
    109  * The non-string form of U_ICUDATA_TYPE_LETTER
    110  * @stable ICU 2.0
    111  */
    112 #if U_CHARSET_FAMILY
    113 #   if U_IS_BIG_ENDIAN
    114    /* EBCDIC - should always be BE */
    115 #     define U_ICUDATA_TYPE_LETTER "e"
    116 #     define U_ICUDATA_TYPE_LITLETTER e
    117 #   else
    118 #     error "Don't know what to do with little endian EBCDIC!"
    119 #     define U_ICUDATA_TYPE_LETTER "x"
    120 #     define U_ICUDATA_TYPE_LITLETTER x
    121 #   endif
    122 #else
    123 #   if U_IS_BIG_ENDIAN
    124       /* Big-endian ASCII */
    125 #     define U_ICUDATA_TYPE_LETTER "b"
    126 #     define U_ICUDATA_TYPE_LITLETTER b
    127 #   else
    128       /* Little-endian ASCII */
    129 #     define U_ICUDATA_TYPE_LETTER "l"
    130 #     define U_ICUDATA_TYPE_LITLETTER l
    131 #   endif
    132 #endif
    133 
    134 /**
    135  * A single string literal containing the icudata stub name. i.e. 'icudt18e' for
    136  * ICU 1.8.x on EBCDIC, etc..
    137  * @stable ICU 2.0
    138  */
    139 #define U_ICUDATA_NAME    "icudt" U_ICU_VERSION_SHORT U_ICUDATA_TYPE_LETTER
    140 #ifndef U_HIDE_INTERNAL_API
    141 #define U_USRDATA_NAME    "usrdt" U_ICU_VERSION_SHORT U_ICUDATA_TYPE_LETTER  /**< @internal */
    142 #define U_USE_USRDATA     0  /**< @internal */
    143 #endif  /* U_HIDE_INTERNAL_API */
    144 
    145 /**
    146  *  U_ICU_ENTRY_POINT is the name of the DLL entry point to the ICU data library.
    147  *    Defined as a literal, not a string.
    148  *    Tricky Preprocessor use - ## operator replaces macro paramters with the literal string
    149  *                              from the corresponding macro invocation, _before_ other macro substitutions.
    150  *                              Need a nested \#defines to get the actual version numbers rather than
    151  *                              the literal text U_ICU_VERSION_MAJOR_NUM into the name.
    152  *                              The net result will be something of the form
    153  *                                  \#define U_ICU_ENTRY_POINT icudt19_dat
    154  * @stable ICU 2.4
    155  */
    156 #define U_ICUDATA_ENTRY_POINT  U_DEF2_ICUDATA_ENTRY_POINT(U_ICU_VERSION_MAJOR_NUM,U_LIB_SUFFIX_C_NAME)
    157 
    158 #ifndef U_HIDE_INTERNAL_API
    159 /**
    160  * Do not use. Note that it's OK for the 2nd argument to be undefined (literal).
    161  * @internal
    162  */
    163 #define U_DEF2_ICUDATA_ENTRY_POINT(major,suff) U_DEF_ICUDATA_ENTRY_POINT(major,suff)
    164 
    165 /**
    166  * Do not use.
    167  * @internal
    168  */
    169 #ifndef U_DEF_ICUDATA_ENTRY_POINT
    170 /* affected by symbol renaming. See platform.h */
    171 #ifndef U_LIB_SUFFIX_C_NAME
    172 #define U_DEF_ICUDATA_ENTRY_POINT(major, suff) icudt##major##_dat
    173 #else
    174 #define U_DEF_ICUDATA_ENTRY_POINT(major, suff) icudt##suff ## major##_dat
    175 #endif
    176 #endif
    177 #endif  /* U_HIDE_INTERNAL_API */
    178 
    179 /**
    180  * \def NULL
    181  * Define NULL if necessary, to nullptr for C++ and to ((void *)0) for C.
    182  * @stable ICU 2.0
    183  */
    184 #ifndef NULL
    185 #ifdef __cplusplus
    186 #define NULL    nullptr
    187 #else
    188 #define NULL    ((void *)0)
    189 #endif
    190 #endif
    191 
    192 /*===========================================================================*/
    193 /* Calendar/TimeZone data types                                              */
    194 /*===========================================================================*/
    195 
    196 /**
    197  * Date and Time data type.
    198  * This is a primitive data type that holds the date and time
    199  * as the number of milliseconds since 1970-jan-01, 00:00 UTC.
    200  * UTC leap seconds are ignored.
    201  * @stable ICU 2.0
    202  */
    203 typedef double UDate;
    204 
    205 /** The number of milliseconds per second @stable ICU 2.0 */
    206 #define U_MILLIS_PER_SECOND        (1000)
    207 /** The number of milliseconds per minute @stable ICU 2.0 */
    208 #define U_MILLIS_PER_MINUTE       (60000)
    209 /** The number of milliseconds per hour @stable ICU 2.0 */
    210 #define U_MILLIS_PER_HOUR       (3600000)
    211 /** The number of milliseconds per day @stable ICU 2.0 */
    212 #define U_MILLIS_PER_DAY       (86400000)
    213 
    214 /**
    215  * Maximum UDate value
    216  * @stable ICU 4.8
    217  */
    218 #define U_DATE_MAX DBL_MAX
    219 
    220 /**
    221  * Minimum UDate value
    222  * @stable ICU 4.8
    223  */
    224 #define U_DATE_MIN -U_DATE_MAX
    225 
    226 /*===========================================================================*/
    227 /* Shared library/DLL import-export API control                              */
    228 /*===========================================================================*/
    229 
    230 /*
    231  * Control of symbol import/export.
    232  * ICU is separated into three libraries.
    233  */
    234 
    235 /**
    236  * \def U_COMBINED_IMPLEMENTATION
    237  * Set to export library symbols from inside the ICU library
    238  * when all of ICU is in a single library.
    239  * This can be set as a compiler option while building ICU, and it
    240  * needs to be the first one tested to override U_COMMON_API, U_I18N_API, etc.
    241  * @stable ICU 2.0
    242  */
    243 
    244 /**
    245  * \def U_DATA_API
    246  * Set to export library symbols from inside the stubdata library,
    247  * and to import them from outside.
    248  * @stable ICU 3.0
    249  */
    250 
    251 /**
    252  * \def U_COMMON_API
    253  * Set to export library symbols from inside the common library,
    254  * and to import them from outside.
    255  * @stable ICU 2.0
    256  */
    257 
    258 /**
    259  * \def U_I18N_API
    260  * Set to export library symbols from inside the i18n library,
    261  * and to import them from outside.
    262  * @stable ICU 2.0
    263  */
    264 
    265 /**
    266  * \def U_LAYOUT_API
    267  * Set to export library symbols from inside the layout engine library,
    268  * and to import them from outside.
    269  * @stable ICU 2.0
    270  */
    271 
    272 /**
    273  * \def U_LAYOUTEX_API
    274  * Set to export library symbols from inside the layout extensions library,
    275  * and to import them from outside.
    276  * @stable ICU 2.6
    277  */
    278 
    279 /**
    280  * \def U_IO_API
    281  * Set to export library symbols from inside the ustdio library,
    282  * and to import them from outside.
    283  * @stable ICU 2.0
    284  */
    285 
    286 /**
    287  * \def U_TOOLUTIL_API
    288  * Set to export library symbols from inside the toolutil library,
    289  * and to import them from outside.
    290  * @stable ICU 3.4
    291  */
    292 
    293 #if defined(U_COMBINED_IMPLEMENTATION)
    294 #define U_DATA_API     U_EXPORT
    295 #define U_COMMON_API   U_EXPORT
    296 #define U_I18N_API     U_EXPORT
    297 #define U_LAYOUT_API   U_EXPORT
    298 #define U_LAYOUTEX_API U_EXPORT
    299 #define U_IO_API       U_EXPORT
    300 #define U_TOOLUTIL_API U_EXPORT
    301 #elif defined(U_STATIC_IMPLEMENTATION)
    302 #define U_DATA_API
    303 #define U_COMMON_API
    304 #define U_I18N_API
    305 #define U_LAYOUT_API
    306 #define U_LAYOUTEX_API
    307 #define U_IO_API
    308 #define U_TOOLUTIL_API
    309 #elif defined(U_COMMON_IMPLEMENTATION)
    310 #define U_DATA_API     U_IMPORT
    311 #define U_COMMON_API   U_EXPORT
    312 #define U_I18N_API     U_IMPORT
    313 #define U_LAYOUT_API   U_IMPORT
    314 #define U_LAYOUTEX_API U_IMPORT
    315 #define U_IO_API       U_IMPORT
    316 #define U_TOOLUTIL_API U_IMPORT
    317 #elif defined(U_I18N_IMPLEMENTATION)
    318 #define U_DATA_API     U_IMPORT
    319 #define U_COMMON_API   U_IMPORT
    320 #define U_I18N_API     U_EXPORT
    321 #define U_LAYOUT_API   U_IMPORT
    322 #define U_LAYOUTEX_API U_IMPORT
    323 #define U_IO_API       U_IMPORT
    324 #define U_TOOLUTIL_API U_IMPORT
    325 #elif defined(U_LAYOUT_IMPLEMENTATION)
    326 #define U_DATA_API     U_IMPORT
    327 #define U_COMMON_API   U_IMPORT
    328 #define U_I18N_API     U_IMPORT
    329 #define U_LAYOUT_API   U_EXPORT
    330 #define U_LAYOUTEX_API U_IMPORT
    331 #define U_IO_API       U_IMPORT
    332 #define U_TOOLUTIL_API U_IMPORT
    333 #elif defined(U_LAYOUTEX_IMPLEMENTATION)
    334 #define U_DATA_API     U_IMPORT
    335 #define U_COMMON_API   U_IMPORT
    336 #define U_I18N_API     U_IMPORT
    337 #define U_LAYOUT_API   U_IMPORT
    338 #define U_LAYOUTEX_API U_EXPORT
    339 #define U_IO_API       U_IMPORT
    340 #define U_TOOLUTIL_API U_IMPORT
    341 #elif defined(U_IO_IMPLEMENTATION)
    342 #define U_DATA_API     U_IMPORT
    343 #define U_COMMON_API   U_IMPORT
    344 #define U_I18N_API     U_IMPORT
    345 #define U_LAYOUT_API   U_IMPORT
    346 #define U_LAYOUTEX_API U_IMPORT
    347 #define U_IO_API       U_EXPORT
    348 #define U_TOOLUTIL_API U_IMPORT
    349 #elif defined(U_TOOLUTIL_IMPLEMENTATION)
    350 #define U_DATA_API     U_IMPORT
    351 #define U_COMMON_API   U_IMPORT
    352 #define U_I18N_API     U_IMPORT
    353 #define U_LAYOUT_API   U_IMPORT
    354 #define U_LAYOUTEX_API U_IMPORT
    355 #define U_IO_API       U_IMPORT
    356 #define U_TOOLUTIL_API U_EXPORT
    357 #else
    358 #define U_DATA_API     U_IMPORT
    359 #define U_COMMON_API   U_IMPORT
    360 #define U_I18N_API     U_IMPORT
    361 #define U_LAYOUT_API   U_IMPORT
    362 #define U_LAYOUTEX_API U_IMPORT
    363 #define U_IO_API       U_IMPORT
    364 #define U_TOOLUTIL_API U_IMPORT
    365 #endif
    366 
    367 /**
    368  * \def U_STANDARD_CPP_NAMESPACE
    369  * Control of C++ Namespace
    370  * @stable ICU 2.0
    371  */
    372 #ifdef __cplusplus
    373 #define U_STANDARD_CPP_NAMESPACE        ::
    374 #else
    375 #define U_STANDARD_CPP_NAMESPACE
    376 #endif
    377 
    378 /*===========================================================================*/
    379 /* UErrorCode */
    380 /*===========================================================================*/
    381 
    382 /**
    383  * Error code to replace exception handling, so that the code is compatible with all C++ compilers,
    384  * and to use the same mechanism for C and C++.
    385  *
    386  * \par
    387  * ICU functions that take a reference (C++) or a pointer (C) to a UErrorCode
    388  * first test if(U_FAILURE(errorCode)) { return immediately; }
    389  * so that in a chain of such functions the first one that sets an error code
    390  * causes the following ones to not perform any operations.
    391  *
    392  * \par
    393  * Error codes should be tested using U_FAILURE() and U_SUCCESS().
    394  * @stable ICU 2.0
    395  */
    396 typedef enum UErrorCode {
    397     /* The ordering of U_ERROR_INFO_START Vs U_USING_FALLBACK_WARNING looks weird
    398      * and is that way because VC++ debugger displays first encountered constant,
    399      * which is not the what the code is used for
    400      */
    401 
    402     U_USING_FALLBACK_WARNING  = -128,   /**< A resource bundle lookup returned a fallback result (not an error) */
    403 
    404     U_ERROR_WARNING_START     = -128,   /**< Start of information results (semantically successful) */
    405 
    406     U_USING_DEFAULT_WARNING   = -127,   /**< A resource bundle lookup returned a result from the root locale (not an error) */
    407 
    408     U_SAFECLONE_ALLOCATED_WARNING = -126, /**< A SafeClone operation required allocating memory (informational only) */
    409 
    410     U_STATE_OLD_WARNING       = -125,   /**< ICU has to use compatibility layer to construct the service. Expect performance/memory usage degradation. Consider upgrading */
    411 
    412     U_STRING_NOT_TERMINATED_WARNING = -124,/**< An output string could not be NUL-terminated because output length==destCapacity. */
    413 
    414     U_SORT_KEY_TOO_SHORT_WARNING = -123, /**< Number of levels requested in getBound is higher than the number of levels in the sort key */
    415 
    416     U_AMBIGUOUS_ALIAS_WARNING = -122,   /**< This converter alias can go to different converter implementations */
    417 
    418     U_DIFFERENT_UCA_VERSION = -121,     /**< ucol_open encountered a mismatch between UCA version and collator image version, so the collator was constructed from rules. No impact to further function */
    419 
    420     U_PLUGIN_CHANGED_LEVEL_WARNING = -120, /**< A plugin caused a level change. May not be an error, but later plugins may not load. */
    421 
    422 #ifndef U_HIDE_DEPRECATED_API
    423     /**
    424      * One more than the highest normal UErrorCode warning value.
    425      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    426      */
    427     U_ERROR_WARNING_LIMIT,
    428 #endif  // U_HIDE_DEPRECATED_API
    429 
    430     U_ZERO_ERROR              =  0,     /**< No error, no warning. */
    431 
    432     U_ILLEGAL_ARGUMENT_ERROR  =  1,     /**< Start of codes indicating failure */
    433     U_MISSING_RESOURCE_ERROR  =  2,     /**< The requested resource cannot be found */
    434     U_INVALID_FORMAT_ERROR    =  3,     /**< Data format is not what is expected */
    435     U_FILE_ACCESS_ERROR       =  4,     /**< The requested file cannot be found */
    436     U_INTERNAL_PROGRAM_ERROR  =  5,     /**< Indicates a bug in the library code */
    437     U_MESSAGE_PARSE_ERROR     =  6,     /**< Unable to parse a message (message format) */
    438     U_MEMORY_ALLOCATION_ERROR =  7,     /**< Memory allocation error */
    439     U_INDEX_OUTOFBOUNDS_ERROR =  8,     /**< Trying to access the index that is out of bounds */
    440     U_PARSE_ERROR             =  9,     /**< Equivalent to Java ParseException */
    441     U_INVALID_CHAR_FOUND      = 10,     /**< Character conversion: Unmappable input sequence. In other APIs: Invalid character. */
    442     U_TRUNCATED_CHAR_FOUND    = 11,     /**< Character conversion: Incomplete input sequence. */
    443     U_ILLEGAL_CHAR_FOUND      = 12,     /**< Character conversion: Illegal input sequence/combination of input units. */
    444     U_INVALID_TABLE_FORMAT    = 13,     /**< Conversion table file found, but corrupted */
    445     U_INVALID_TABLE_FILE      = 14,     /**< Conversion table file not found */
    446     U_BUFFER_OVERFLOW_ERROR   = 15,     /**< A result would not fit in the supplied buffer */
    447     U_UNSUPPORTED_ERROR       = 16,     /**< Requested operation not supported in current context */
    448     U_RESOURCE_TYPE_MISMATCH  = 17,     /**< an operation is requested over a resource that does not support it */
    449     U_ILLEGAL_ESCAPE_SEQUENCE = 18,     /**< ISO-2022 illlegal escape sequence */
    450     U_UNSUPPORTED_ESCAPE_SEQUENCE = 19, /**< ISO-2022 unsupported escape sequence */
    451     U_NO_SPACE_AVAILABLE      = 20,     /**< No space available for in-buffer expansion for Arabic shaping */
    452     U_CE_NOT_FOUND_ERROR      = 21,     /**< Currently used only while setting variable top, but can be used generally */
    453     U_PRIMARY_TOO_LONG_ERROR  = 22,     /**< User tried to set variable top to a primary that is longer than two bytes */
    454     U_STATE_TOO_OLD_ERROR     = 23,     /**< ICU cannot construct a service from this state, as it is no longer supported */
    455     U_TOO_MANY_ALIASES_ERROR  = 24,     /**< There are too many aliases in the path to the requested resource.
    456                                              It is very possible that a circular alias definition has occured */
    457     U_ENUM_OUT_OF_SYNC_ERROR  = 25,     /**< UEnumeration out of sync with underlying collection */
    458     U_INVARIANT_CONVERSION_ERROR = 26,  /**< Unable to convert a UChar* string to char* with the invariant converter. */
    459     U_INVALID_STATE_ERROR     = 27,     /**< Requested operation can not be completed with ICU in its current state */
    460     U_COLLATOR_VERSION_MISMATCH = 28,   /**< Collator version is not compatible with the base version */
    461     U_USELESS_COLLATOR_ERROR  = 29,     /**< Collator is options only and no base is specified */
    462     U_NO_WRITE_PERMISSION     = 30,     /**< Attempt to modify read-only or constant data. */
    463 
    464 #ifndef U_HIDE_DEPRECATED_API
    465     /**
    466      * One more than the highest standard error code.
    467      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    468      */
    469     U_STANDARD_ERROR_LIMIT,
    470 #endif  // U_HIDE_DEPRECATED_API
    471 
    472     /*
    473      * Error codes in the range 0x10000 0x10100 are reserved for Transliterator.
    474      */
    475     U_BAD_VARIABLE_DEFINITION=0x10000,/**< Missing '$' or duplicate variable name */
    476     U_PARSE_ERROR_START = 0x10000,    /**< Start of Transliterator errors */
    477     U_MALFORMED_RULE,                 /**< Elements of a rule are misplaced */
    478     U_MALFORMED_SET,                  /**< A UnicodeSet pattern is invalid*/
    479     U_MALFORMED_SYMBOL_REFERENCE,     /**< UNUSED as of ICU 2.4 */
    480     U_MALFORMED_UNICODE_ESCAPE,       /**< A Unicode escape pattern is invalid*/
    481     U_MALFORMED_VARIABLE_DEFINITION,  /**< A variable definition is invalid */
    482     U_MALFORMED_VARIABLE_REFERENCE,   /**< A variable reference is invalid */
    483     U_MISMATCHED_SEGMENT_DELIMITERS,  /**< UNUSED as of ICU 2.4 */
    484     U_MISPLACED_ANCHOR_START,         /**< A start anchor appears at an illegal position */
    485     U_MISPLACED_CURSOR_OFFSET,        /**< A cursor offset occurs at an illegal position */
    486     U_MISPLACED_QUANTIFIER,           /**< A quantifier appears after a segment close delimiter */
    487     U_MISSING_OPERATOR,               /**< A rule contains no operator */
    488     U_MISSING_SEGMENT_CLOSE,          /**< UNUSED as of ICU 2.4 */
    489     U_MULTIPLE_ANTE_CONTEXTS,         /**< More than one ante context */
    490     U_MULTIPLE_CURSORS,               /**< More than one cursor */
    491     U_MULTIPLE_POST_CONTEXTS,         /**< More than one post context */
    492     U_TRAILING_BACKSLASH,             /**< A dangling backslash */
    493     U_UNDEFINED_SEGMENT_REFERENCE,    /**< A segment reference does not correspond to a defined segment */
    494     U_UNDEFINED_VARIABLE,             /**< A variable reference does not correspond to a defined variable */
    495     U_UNQUOTED_SPECIAL,               /**< A special character was not quoted or escaped */
    496     U_UNTERMINATED_QUOTE,             /**< A closing single quote is missing */
    497     U_RULE_MASK_ERROR,                /**< A rule is hidden by an earlier more general rule */
    498     U_MISPLACED_COMPOUND_FILTER,      /**< A compound filter is in an invalid location */
    499     U_MULTIPLE_COMPOUND_FILTERS,      /**< More than one compound filter */
    500     U_INVALID_RBT_SYNTAX,             /**< A "::id" rule was passed to the RuleBasedTransliterator parser */
    501     U_INVALID_PROPERTY_PATTERN,       /**< UNUSED as of ICU 2.4 */
    502     U_MALFORMED_PRAGMA,               /**< A 'use' pragma is invlalid */
    503     U_UNCLOSED_SEGMENT,               /**< A closing ')' is missing */
    504     U_ILLEGAL_CHAR_IN_SEGMENT,        /**< UNUSED as of ICU 2.4 */
    505     U_VARIABLE_RANGE_EXHAUSTED,       /**< Too many stand-ins generated for the given variable range */
    506     U_VARIABLE_RANGE_OVERLAP,         /**< The variable range overlaps characters used in rules */
    507     U_ILLEGAL_CHARACTER,              /**< A special character is outside its allowed context */
    508     U_INTERNAL_TRANSLITERATOR_ERROR,  /**< Internal transliterator system error */
    509     U_INVALID_ID,                     /**< A "::id" rule specifies an unknown transliterator */
    510     U_INVALID_FUNCTION,               /**< A "&fn()" rule specifies an unknown transliterator */
    511 #ifndef U_HIDE_DEPRECATED_API
    512     /**
    513      * One more than the highest normal Transliterator error code.
    514      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    515      */
    516     U_PARSE_ERROR_LIMIT,
    517 #endif  // U_HIDE_DEPRECATED_API
    518 
    519     /*
    520      * Error codes in the range 0x10100 0x10200 are reserved for the formatting API.
    521      */
    522     U_UNEXPECTED_TOKEN=0x10100,       /**< Syntax error in format pattern */
    523     U_FMT_PARSE_ERROR_START=0x10100,  /**< Start of format library errors */
    524     U_MULTIPLE_DECIMAL_SEPARATORS,    /**< More than one decimal separator in number pattern */
    525     U_MULTIPLE_DECIMAL_SEPERATORS = U_MULTIPLE_DECIMAL_SEPARATORS, /**< Typo: kept for backward compatibility. Use U_MULTIPLE_DECIMAL_SEPARATORS */
    526     U_MULTIPLE_EXPONENTIAL_SYMBOLS,   /**< More than one exponent symbol in number pattern */
    527     U_MALFORMED_EXPONENTIAL_PATTERN,  /**< Grouping symbol in exponent pattern */
    528     U_MULTIPLE_PERCENT_SYMBOLS,       /**< More than one percent symbol in number pattern */
    529     U_MULTIPLE_PERMILL_SYMBOLS,       /**< More than one permill symbol in number pattern */
    530     U_MULTIPLE_PAD_SPECIFIERS,        /**< More than one pad symbol in number pattern */
    531     U_PATTERN_SYNTAX_ERROR,           /**< Syntax error in format pattern */
    532     U_ILLEGAL_PAD_POSITION,           /**< Pad symbol misplaced in number pattern */
    533     U_UNMATCHED_BRACES,               /**< Braces do not match in message pattern */
    534     U_UNSUPPORTED_PROPERTY,           /**< UNUSED as of ICU 2.4 */
    535     U_UNSUPPORTED_ATTRIBUTE,          /**< UNUSED as of ICU 2.4 */
    536     U_ARGUMENT_TYPE_MISMATCH,         /**< Argument name and argument index mismatch in MessageFormat functions */
    537     U_DUPLICATE_KEYWORD,              /**< Duplicate keyword in PluralFormat */
    538     U_UNDEFINED_KEYWORD,              /**< Undefined Plural keyword */
    539     U_DEFAULT_KEYWORD_MISSING,        /**< Missing DEFAULT rule in plural rules */
    540     U_DECIMAL_NUMBER_SYNTAX_ERROR,    /**< Decimal number syntax error */
    541     U_FORMAT_INEXACT_ERROR,           /**< Cannot format a number exactly and rounding mode is ROUND_UNNECESSARY @stable ICU 4.8 */
    542 #ifndef U_HIDE_DEPRECATED_API
    543     /**
    544      * One more than the highest normal formatting API error code.
    545      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    546      */
    547     U_FMT_PARSE_ERROR_LIMIT,
    548 #endif  // U_HIDE_DEPRECATED_API
    549 
    550     /*
    551      * Error codes in the range 0x10200 0x102ff are reserved for BreakIterator.
    552      */
    553     U_BRK_INTERNAL_ERROR=0x10200,          /**< An internal error (bug) was detected.             */
    554     U_BRK_ERROR_START=0x10200,             /**< Start of codes indicating Break Iterator failures */
    555     U_BRK_HEX_DIGITS_EXPECTED,             /**< Hex digits expected as part of a escaped char in a rule. */
    556     U_BRK_SEMICOLON_EXPECTED,              /**< Missing ';' at the end of a RBBI rule.            */
    557     U_BRK_RULE_SYNTAX,                     /**< Syntax error in RBBI rule.                        */
    558     U_BRK_UNCLOSED_SET,                    /**< UnicodeSet witing an RBBI rule missing a closing ']'.  */
    559     U_BRK_ASSIGN_ERROR,                    /**< Syntax error in RBBI rule assignment statement.   */
    560     U_BRK_VARIABLE_REDFINITION,            /**< RBBI rule $Variable redefined.                    */
    561     U_BRK_MISMATCHED_PAREN,                /**< Mis-matched parentheses in an RBBI rule.          */
    562     U_BRK_NEW_LINE_IN_QUOTED_STRING,       /**< Missing closing quote in an RBBI rule.            */
    563     U_BRK_UNDEFINED_VARIABLE,              /**< Use of an undefined $Variable in an RBBI rule.    */
    564     U_BRK_INIT_ERROR,                      /**< Initialization failure.  Probable missing ICU Data. */
    565     U_BRK_RULE_EMPTY_SET,                  /**< Rule contains an empty Unicode Set.               */
    566     U_BRK_UNRECOGNIZED_OPTION,             /**< !!option in RBBI rules not recognized.            */
    567     U_BRK_MALFORMED_RULE_TAG,              /**< The {nnn} tag on a rule is mal formed             */
    568 #ifndef U_HIDE_DEPRECATED_API
    569     /**
    570      * One more than the highest normal BreakIterator error code.
    571      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    572      */
    573     U_BRK_ERROR_LIMIT,
    574 #endif  // U_HIDE_DEPRECATED_API
    575 
    576     /*
    577      * Error codes in the range 0x10300-0x103ff are reserved for regular expression related errors.
    578      */
    579     U_REGEX_INTERNAL_ERROR=0x10300,       /**< An internal error (bug) was detected.              */
    580     U_REGEX_ERROR_START=0x10300,          /**< Start of codes indicating Regexp failures          */
    581     U_REGEX_RULE_SYNTAX,                  /**< Syntax error in regexp pattern.                    */
    582     U_REGEX_INVALID_STATE,                /**< RegexMatcher in invalid state for requested operation */
    583     U_REGEX_BAD_ESCAPE_SEQUENCE,          /**< Unrecognized backslash escape sequence in pattern  */
    584     U_REGEX_PROPERTY_SYNTAX,              /**< Incorrect Unicode property                         */
    585     U_REGEX_UNIMPLEMENTED,                /**< Use of regexp feature that is not yet implemented. */
    586     U_REGEX_MISMATCHED_PAREN,             /**< Incorrectly nested parentheses in regexp pattern.  */
    587     U_REGEX_NUMBER_TOO_BIG,               /**< Decimal number is too large.                       */
    588     U_REGEX_BAD_INTERVAL,                 /**< Error in {min,max} interval                        */
    589     U_REGEX_MAX_LT_MIN,                   /**< In {min,max}, max is less than min.                */
    590     U_REGEX_INVALID_BACK_REF,             /**< Back-reference to a non-existent capture group.    */
    591     U_REGEX_INVALID_FLAG,                 /**< Invalid value for match mode flags.                */
    592     U_REGEX_LOOK_BEHIND_LIMIT,            /**< Look-Behind pattern matches must have a bounded maximum length.    */
    593     U_REGEX_SET_CONTAINS_STRING,          /**< Regexps cannot have UnicodeSets containing strings.*/
    594 #ifndef U_HIDE_DEPRECATED_API
    595     U_REGEX_OCTAL_TOO_BIG,                /**< Octal character constants must be <= 0377. @deprecated ICU 54. This error cannot occur. */
    596 #endif  /* U_HIDE_DEPRECATED_API */
    597     U_REGEX_MISSING_CLOSE_BRACKET=U_REGEX_SET_CONTAINS_STRING+2, /**< Missing closing bracket on a bracket expression. */
    598     U_REGEX_INVALID_RANGE,                /**< In a character range [x-y], x is greater than y.   */
    599     U_REGEX_STACK_OVERFLOW,               /**< Regular expression backtrack stack overflow.       */
    600     U_REGEX_TIME_OUT,                     /**< Maximum allowed match time exceeded                */
    601     U_REGEX_STOPPED_BY_CALLER,            /**< Matching operation aborted by user callback fn.    */
    602     U_REGEX_PATTERN_TOO_BIG,              /**< Pattern exceeds limits on size or complexity. @stable ICU 55 */
    603     U_REGEX_INVALID_CAPTURE_GROUP_NAME,   /**< Invalid capture group name. @stable ICU 55 */
    604 #ifndef U_HIDE_DEPRECATED_API
    605     /**
    606      * One more than the highest normal regular expression error code.
    607      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    608      */
    609     U_REGEX_ERROR_LIMIT=U_REGEX_STOPPED_BY_CALLER+3,
    610 #endif  // U_HIDE_DEPRECATED_API
    611 
    612     /*
    613      * Error codes in the range 0x10400-0x104ff are reserved for IDNA related error codes.
    614      */
    615     U_IDNA_PROHIBITED_ERROR=0x10400,
    616     U_IDNA_ERROR_START=0x10400,
    617     U_IDNA_UNASSIGNED_ERROR,
    618     U_IDNA_CHECK_BIDI_ERROR,
    619     U_IDNA_STD3_ASCII_RULES_ERROR,
    620     U_IDNA_ACE_PREFIX_ERROR,
    621     U_IDNA_VERIFICATION_ERROR,
    622     U_IDNA_LABEL_TOO_LONG_ERROR,
    623     U_IDNA_ZERO_LENGTH_LABEL_ERROR,
    624     U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR,
    625 #ifndef U_HIDE_DEPRECATED_API
    626     /**
    627      * One more than the highest normal IDNA error code.
    628      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    629      */
    630     U_IDNA_ERROR_LIMIT,
    631 #endif  // U_HIDE_DEPRECATED_API
    632     /*
    633      * Aliases for StringPrep
    634      */
    635     U_STRINGPREP_PROHIBITED_ERROR = U_IDNA_PROHIBITED_ERROR,
    636     U_STRINGPREP_UNASSIGNED_ERROR = U_IDNA_UNASSIGNED_ERROR,
    637     U_STRINGPREP_CHECK_BIDI_ERROR = U_IDNA_CHECK_BIDI_ERROR,
    638 
    639     /*
    640      * Error codes in the range 0x10500-0x105ff are reserved for Plugin related error codes.
    641      */
    642     U_PLUGIN_ERROR_START=0x10500,         /**< Start of codes indicating plugin failures */
    643     U_PLUGIN_TOO_HIGH=0x10500,            /**< The plugin's level is too high to be loaded right now. */
    644     U_PLUGIN_DIDNT_SET_LEVEL,             /**< The plugin didn't call uplug_setPlugLevel in response to a QUERY */
    645 #ifndef U_HIDE_DEPRECATED_API
    646     /**
    647      * One more than the highest normal plug-in error code.
    648      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    649      */
    650     U_PLUGIN_ERROR_LIMIT,
    651 #endif  // U_HIDE_DEPRECATED_API
    652 
    653 #ifndef U_HIDE_DEPRECATED_API
    654     /**
    655      * One more than the highest normal error code.
    656      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
    657      */
    658     U_ERROR_LIMIT=U_PLUGIN_ERROR_LIMIT
    659 #endif  // U_HIDE_DEPRECATED_API
    660 } UErrorCode;
    661 
    662 /* Use the following to determine if an UErrorCode represents */
    663 /* operational success or failure. */
    664 
    665 #ifdef __cplusplus
    666     /**
    667      * Does the error code indicate success?
    668      * @stable ICU 2.0
    669      */
    670     static
    671     inline UBool U_SUCCESS(UErrorCode code) { return (UBool)(code<=U_ZERO_ERROR); }
    672     /**
    673      * Does the error code indicate a failure?
    674      * @stable ICU 2.0
    675      */
    676     static
    677     inline UBool U_FAILURE(UErrorCode code) { return (UBool)(code>U_ZERO_ERROR); }
    678 #else
    679     /**
    680      * Does the error code indicate success?
    681      * @stable ICU 2.0
    682      */
    683 #   define U_SUCCESS(x) ((x)<=U_ZERO_ERROR)
    684     /**
    685      * Does the error code indicate a failure?
    686      * @stable ICU 2.0
    687      */
    688 #   define U_FAILURE(x) ((x)>U_ZERO_ERROR)
    689 #endif
    690 
    691 /**
    692  * Return a string for a UErrorCode value.
    693  * The string will be the same as the name of the error code constant
    694  * in the UErrorCode enum above.
    695  * @stable ICU 2.0
    696  */
    697 U_STABLE const char * U_EXPORT2
    698 u_errorName(UErrorCode code);
    699 
    700 
    701 #endif /* _UTYPES */
    702