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      1 /*
      2 **********************************************************************
      3 *   Copyright (C) 1996-2010, International Business Machines
      4 *   Corporation and others.  All Rights Reserved.
      5 **********************************************************************
      6 *
      7 *  FILE NAME : UTYPES.H (formerly ptypes.h)
      8 *
      9 *   Date        Name        Description
     10 *   12/11/96    helena      Creation.
     11 *   02/27/97    aliu        Added typedefs for UClassID, int8, int16, int32,
     12 *                           uint8, uint16, and uint32.
     13 *   04/01/97    aliu        Added XP_CPLUSPLUS and modified to work under C as
     14 *                            well as C++.
     15 *                           Modified to use memcpy() for uprv_arrayCopy() fns.
     16 *   04/14/97    aliu        Added TPlatformUtilities.
     17 *   05/07/97    aliu        Added import/export specifiers (replacing the old
     18 *                           broken EXT_CLASS).  Added version number for our
     19 *                           code.  Cleaned up header.
     20 *    6/20/97    helena      Java class name change.
     21 *   08/11/98    stephen     UErrorCode changed from typedef to enum
     22 *   08/12/98    erm         Changed T_ANALYTIC_PACKAGE_VERSION to 3
     23 *   08/14/98    stephen     Added uprv_arrayCopy() for int8_t, int16_t, int32_t
     24 *   12/09/98    jfitz       Added BUFFER_OVERFLOW_ERROR (bug 1100066)
     25 *   04/20/99    stephen     Cleaned up & reworked for autoconf.
     26 *                           Renamed to utypes.h.
     27 *   05/05/99    stephen     Changed to use <inttypes.h>
     28 *   12/07/99    helena      Moved copyright notice string from ucnv_bld.h here.
     29 *******************************************************************************
     30 */
     31 
     32 #ifndef UTYPES_H
     33 #define UTYPES_H
     34 
     35 
     36 #include "unicode/umachine.h"
     37 #include "unicode/utf.h"
     38 #include "unicode/uversion.h"
     39 #include "unicode/uconfig.h"
     40 
     41 /*!
     42  * \file
     43  * \brief Basic definitions for ICU, for both C and C++ APIs
     44  *
     45  * This file defines basic types, constants, and enumerations directly or
     46  * indirectly by including other header files, especially utf.h for the
     47  * basic character and string definitions and umachine.h for consistent
     48  * integer and other types.
     49  */
     50 
     51 
     52 /**
     53  * \def U_SHOW_CPLUSPLUS_API
     54  * @internal
     55  */
     56 #ifdef XP_CPLUSPLUS
     57 #   ifndef U_SHOW_CPLUSPLUS_API
     58 #       define U_SHOW_CPLUSPLUS_API 1
     59 #   endif
     60 #else
     61 #   undef U_SHOW_CPLUSPLUS_API
     62 #   define U_SHOW_CPLUSPLUS_API 0
     63 #endif
     64 
     65 /** @{ API visibility control */
     66 
     67 /**
     68  * \def U_HIDE_DRAFT_API
     69  * Define this to 1 to request that draft API be "hidden"
     70  */
     71 #if !U_DEFAULT_SHOW_DRAFT && !defined(U_SHOW_DRAFT_API)
     72 #define U_HIDE_DRAFT_API 1
     73 #endif
     74 #if !U_DEFAULT_SHOW_DRAFT && !defined(U_SHOW_INTERNAL_API)
     75 #define U_HIDE_INTERNAL_API 1
     76 #endif
     77 
     78 #ifdef U_HIDE_DRAFT_API
     79 #include "unicode/udraft.h"
     80 #endif
     81 
     82 #ifdef U_HIDE_DEPRECATED_API
     83 #include "unicode/udeprctd.h"
     84 #endif
     85 
     86 #ifdef U_HIDE_DEPRECATED_API
     87 #include "unicode/uobslete.h"
     88 #endif
     89 
     90 #ifdef U_HIDE_INTERNAL_API
     91 #include "unicode/uintrnal.h"
     92 #endif
     93 
     94 #ifdef U_HIDE_SYSTEM_API
     95 #include "unicode/usystem.h"
     96 #endif
     97 
     98 /** @} */
     99 
    100 
    101 /*===========================================================================*/
    102 /* char Character set family                                                 */
    103 /*===========================================================================*/
    104 
    105 /**
    106  * U_CHARSET_FAMILY is equal to this value when the platform is an ASCII based platform.
    107  * @stable ICU 2.0
    108  */
    109 #define U_ASCII_FAMILY 0
    110 
    111 /**
    112  * U_CHARSET_FAMILY is equal to this value when the platform is an EBCDIC based platform.
    113  * @stable ICU 2.0
    114  */
    115 #define U_EBCDIC_FAMILY 1
    116 
    117 /**
    118  * \def U_CHARSET_FAMILY
    119  *
    120  * <p>These definitions allow to specify the encoding of text
    121  * in the char data type as defined by the platform and the compiler.
    122  * It is enough to determine the code point values of "invariant characters",
    123  * which are the ones shared by all encodings that are in use
    124  * on a given platform.</p>
    125  *
    126  * <p>Those "invariant characters" should be all the uppercase and lowercase
    127  * latin letters, the digits, the space, and "basic punctuation".
    128  * Also, '\\n', '\\r', '\\t' should be available.</p>
    129  *
    130  * <p>The list of "invariant characters" is:<br>
    131  * \code
    132  *    A-Z  a-z  0-9  SPACE  "  %  &amp;  '  (  )  *  +  ,  -  .  /  :  ;  <  =  >  ?  _
    133  * \endcode
    134  * <br>
    135  * (52 letters + 10 numbers + 20 punc/sym/space = 82 total)</p>
    136  *
    137  * <p>This matches the IBM Syntactic Character Set (CS 640).</p>
    138  *
    139  * <p>In other words, all the graphic characters in 7-bit ASCII should
    140  * be safely accessible except the following:</p>
    141  *
    142  * \code
    143  *    '\' <backslash>
    144  *    '[' <left bracket>
    145  *    ']' <right bracket>
    146  *    '{' <left brace>
    147  *    '}' <right brace>
    148  *    '^' <circumflex>
    149  *    '~' <tilde>
    150  *    '!' <exclamation mark>
    151  *    '#' <number sign>
    152  *    '|' <vertical line>
    153  *    '$' <dollar sign>
    154  *    '@' <commercial at>
    155  *    '`' <grave accent>
    156  * \endcode
    157  * @stable ICU 2.0
    158  */
    159 
    160 #ifndef U_CHARSET_FAMILY
    161 #   define U_CHARSET_FAMILY 0
    162 #endif
    163 
    164 /**
    165  * \def U_CHARSET_IS_UTF8
    166  *
    167  * Hardcode the default charset to UTF-8.
    168  *
    169  * If this is set to 1, then
    170  * - ICU will assume that all non-invariant char*, StringPiece, std::string etc.
    171  *   contain UTF-8 text, regardless of what the system API uses
    172  * - some ICU code will use fast functions like u_strFromUTF8()
    173  *   rather than the more general and more heavy-weight conversion API (ucnv.h)
    174  * - ucnv_getDefaultName() always returns "UTF-8"
    175  * - ucnv_setDefaultName() is disabled and will not change the default charset
    176  * - static builds of ICU are smaller
    177  * - more functionality is available with the UCONFIG_NO_CONVERSION build-time
    178  *   configuration option (see unicode/uconfig.h)
    179  * - the UCONFIG_NO_CONVERSION build option in uconfig.h is more usable
    180  *
    181  * @stable ICU 4.2
    182  * @see UCONFIG_NO_CONVERSION
    183  */
    184 #ifndef U_CHARSET_IS_UTF8
    185 #   define U_CHARSET_IS_UTF8 0
    186 #endif
    187 
    188 /*===========================================================================*/
    189 /* ICUDATA naming scheme                                                     */
    190 /*===========================================================================*/
    191 
    192 /**
    193  * \def U_ICUDATA_TYPE_LETTER
    194  *
    195  * This is a platform-dependent string containing one letter:
    196  * - b for big-endian, ASCII-family platforms
    197  * - l for little-endian, ASCII-family platforms
    198  * - e for big-endian, EBCDIC-family platforms
    199  * This letter is part of the common data file name.
    200  * @stable ICU 2.0
    201  */
    202 
    203 /**
    204  * \def U_ICUDATA_TYPE_LITLETTER
    205  * The non-string form of U_ICUDATA_TYPE_LETTER
    206  * @stable ICU 2.0
    207  */
    208 #if U_CHARSET_FAMILY
    209 #   if U_IS_BIG_ENDIAN
    210    /* EBCDIC - should always be BE */
    211 #     define U_ICUDATA_TYPE_LETTER "e"
    212 #     define U_ICUDATA_TYPE_LITLETTER e
    213 #   else
    214 #     error "Don't know what to do with little endian EBCDIC!"
    215 #     define U_ICUDATA_TYPE_LETTER "x"
    216 #     define U_ICUDATA_TYPE_LITLETTER x
    217 #   endif
    218 #else
    219 #   if U_IS_BIG_ENDIAN
    220       /* Big-endian ASCII */
    221 #     define U_ICUDATA_TYPE_LETTER "b"
    222 #     define U_ICUDATA_TYPE_LITLETTER b
    223 #   else
    224       /* Little-endian ASCII */
    225 #     define U_ICUDATA_TYPE_LETTER "l"
    226 #     define U_ICUDATA_TYPE_LITLETTER l
    227 #   endif
    228 #endif
    229 
    230 /**
    231  * A single string literal containing the icudata stub name. i.e. 'icudt18e' for
    232  * ICU 1.8.x on EBCDIC, etc..
    233  * @stable ICU 2.0
    234  */
    235 #define U_ICUDATA_NAME    "icudt" U_ICU_VERSION_SHORT U_ICUDATA_TYPE_LETTER  /**< @internal */
    236 #define U_USRDATA_NAME    "usrdt" U_ICU_VERSION_SHORT U_ICUDATA_TYPE_LETTER  /**< @internal */
    237 #define U_USE_USRDATA     1  /**< @internal */
    238 
    239 /**
    240  *  U_ICU_ENTRY_POINT is the name of the DLL entry point to the ICU data library.
    241  *    Defined as a literal, not a string.
    242  *    Tricky Preprocessor use - ## operator replaces macro paramters with the literal string
    243  *                              from the corresponding macro invocation, _before_ other macro substitutions.
    244  *                              Need a nested \#defines to get the actual version numbers rather than
    245  *                              the literal text U_ICU_VERSION_MAJOR_NUM into the name.
    246  *                              The net result will be something of the form
    247  *                                  \#define U_ICU_ENTRY_POINT icudt19_dat
    248  * @stable ICU 2.4
    249  */
    250 #define U_ICUDATA_ENTRY_POINT  U_DEF2_ICUDATA_ENTRY_POINT(U_ICU_VERSION_MAJOR_NUM, U_ICU_VERSION_MINOR_NUM)
    251 
    252 /**
    253  * Do not use.
    254  * @internal
    255  */
    256 #define U_DEF2_ICUDATA_ENTRY_POINT(major, minor) U_DEF_ICUDATA_ENTRY_POINT(major, minor)
    257 /**
    258  * Do not use.
    259  * @internal
    260  */
    261 #ifndef U_DEF_ICUDATA_ENTRY_POINT
    262 /* affected by symbol renaming. See platform.h */
    263 #define U_DEF_ICUDATA_ENTRY_POINT(major, minor) icudt##major##minor##_dat
    264 #endif
    265 
    266 /**
    267  * \def U_CALLCONV
    268  * Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary
    269  * in callback function typedefs to make sure that the calling convention
    270  * is compatible.
    271  *
    272  * This is only used for non-ICU-API functions.
    273  * When a function is a public ICU API,
    274  * you must use the U_CAPI and U_EXPORT2 qualifiers.
    275  * @stable ICU 2.0
    276  */
    277 #if defined(OS390) && defined(XP_CPLUSPLUS)
    278 #    define U_CALLCONV __cdecl
    279 #else
    280 #    define U_CALLCONV U_EXPORT2
    281 #endif
    282 
    283 /**
    284  * \def NULL
    285  * Define NULL if necessary, to 0 for C++ and to ((void *)0) for C.
    286  * @stable ICU 2.0
    287  */
    288 #ifndef NULL
    289 #ifdef XP_CPLUSPLUS
    290 #define NULL    0
    291 #else
    292 #define NULL    ((void *)0)
    293 #endif
    294 #endif
    295 
    296 /*===========================================================================*/
    297 /* Calendar/TimeZone data types                                              */
    298 /*===========================================================================*/
    299 
    300 /**
    301  * Date and Time data type.
    302  * This is a primitive data type that holds the date and time
    303  * as the number of milliseconds since 1970-jan-01, 00:00 UTC.
    304  * UTC leap seconds are ignored.
    305  * @stable ICU 2.0
    306  */
    307 typedef double UDate;
    308 
    309 /** The number of milliseconds per second @stable ICU 2.0 */
    310 #define U_MILLIS_PER_SECOND        (1000)
    311 /** The number of milliseconds per minute @stable ICU 2.0 */
    312 #define U_MILLIS_PER_MINUTE       (60000)
    313 /** The number of milliseconds per hour @stable ICU 2.0 */
    314 #define U_MILLIS_PER_HOUR       (3600000)
    315 /** The number of milliseconds per day @stable ICU 2.0 */
    316 #define U_MILLIS_PER_DAY       (86400000)
    317 
    318 
    319 /*===========================================================================*/
    320 /* UClassID-based RTTI */
    321 /*===========================================================================*/
    322 
    323 /**
    324  * UClassID is used to identify classes without using RTTI, since RTTI
    325  * is not yet supported by all C++ compilers.  Each class hierarchy which needs
    326  * to implement polymorphic clone() or operator==() defines two methods,
    327  * described in detail below.  UClassID values can be compared using
    328  * operator==(). Nothing else should be done with them.
    329  *
    330  * \par
    331  * getDynamicClassID() is declared in the base class of the hierarchy as
    332  * a pure virtual.  Each concrete subclass implements it in the same way:
    333  *
    334  * \code
    335  *      class Base {
    336  *      public:
    337  *          virtual UClassID getDynamicClassID() const = 0;
    338  *      }
    339  *
    340  *      class Derived {
    341  *      public:
    342  *          virtual UClassID getDynamicClassID() const
    343  *            { return Derived::getStaticClassID(); }
    344  *      }
    345  * \endcode
    346  *
    347  * Each concrete class implements getStaticClassID() as well, which allows
    348  * clients to test for a specific type.
    349  *
    350  * \code
    351  *      class Derived {
    352  *      public:
    353  *          static UClassID U_EXPORT2 getStaticClassID();
    354  *      private:
    355  *          static char fgClassID;
    356  *      }
    357  *
    358  *      // In Derived.cpp:
    359  *      UClassID Derived::getStaticClassID()
    360  *        { return (UClassID)&Derived::fgClassID; }
    361  *      char Derived::fgClassID = 0; // Value is irrelevant
    362  * \endcode
    363  * @stable ICU 2.0
    364  */
    365 typedef void* UClassID;
    366 
    367 /*===========================================================================*/
    368 /* Shared library/DLL import-export API control                              */
    369 /*===========================================================================*/
    370 
    371 /*
    372  * Control of symbol import/export.
    373  * ICU is separated into three libraries.
    374  */
    375 
    376 /*
    377  * \def U_COMBINED_IMPLEMENTATION
    378  * Set to export library symbols from inside the ICU library
    379  * when all of ICU is in a single library.
    380  * This can be set as a compiler option while building ICU, and it
    381  * needs to be the first one tested to override U_COMMON_API, U_I18N_API, etc.
    382  * @stable ICU 2.0
    383  */
    384 
    385 /**
    386  * \def U_DATA_API
    387  * Set to export library symbols from inside the stubdata library,
    388  * and to import them from outside.
    389  * @stable ICU 3.0
    390  */
    391 
    392 /**
    393  * \def U_COMMON_API
    394  * Set to export library symbols from inside the common library,
    395  * and to import them from outside.
    396  * @stable ICU 2.0
    397  */
    398 
    399 /**
    400  * \def U_I18N_API
    401  * Set to export library symbols from inside the i18n library,
    402  * and to import them from outside.
    403  * @stable ICU 2.0
    404  */
    405 
    406 /**
    407  * \def U_LAYOUT_API
    408  * Set to export library symbols from inside the layout engine library,
    409  * and to import them from outside.
    410  * @stable ICU 2.0
    411  */
    412 
    413 /**
    414  * \def U_LAYOUTEX_API
    415  * Set to export library symbols from inside the layout extensions library,
    416  * and to import them from outside.
    417  * @stable ICU 2.6
    418  */
    419 
    420 /**
    421  * \def U_IO_API
    422  * Set to export library symbols from inside the ustdio library,
    423  * and to import them from outside.
    424  * @stable ICU 2.0
    425  */
    426 
    427 /**
    428  * \def U_TOOLUTIL_API
    429  * Set to export library symbols from inside the toolutil library,
    430  * and to import them from outside.
    431  * @stable ICU 3.4
    432  */
    433 
    434 #if defined(U_COMBINED_IMPLEMENTATION)
    435 #define U_DATA_API     U_EXPORT
    436 #define U_COMMON_API   U_EXPORT
    437 #define U_I18N_API     U_EXPORT
    438 #define U_LAYOUT_API   U_EXPORT
    439 #define U_LAYOUTEX_API U_EXPORT
    440 #define U_IO_API       U_EXPORT
    441 #define U_TOOLUTIL_API U_EXPORT
    442 #elif defined(U_STATIC_IMPLEMENTATION)
    443 #define U_DATA_API
    444 #define U_COMMON_API
    445 #define U_I18N_API
    446 #define U_LAYOUT_API
    447 #define U_LAYOUTEX_API
    448 #define U_IO_API
    449 #define U_TOOLUTIL_API
    450 #elif defined(U_COMMON_IMPLEMENTATION)
    451 #define U_DATA_API     U_IMPORT
    452 #define U_COMMON_API   U_EXPORT
    453 #define U_I18N_API     U_IMPORT
    454 #define U_LAYOUT_API   U_IMPORT
    455 #define U_LAYOUTEX_API U_IMPORT
    456 #define U_IO_API       U_IMPORT
    457 #define U_TOOLUTIL_API U_IMPORT
    458 #elif defined(U_I18N_IMPLEMENTATION)
    459 #define U_DATA_API     U_IMPORT
    460 #define U_COMMON_API   U_IMPORT
    461 #define U_I18N_API     U_EXPORT
    462 #define U_LAYOUT_API   U_IMPORT
    463 #define U_LAYOUTEX_API U_IMPORT
    464 #define U_IO_API       U_IMPORT
    465 #define U_TOOLUTIL_API U_IMPORT
    466 #elif defined(U_LAYOUT_IMPLEMENTATION)
    467 #define U_DATA_API     U_IMPORT
    468 #define U_COMMON_API   U_IMPORT
    469 #define U_I18N_API     U_IMPORT
    470 #define U_LAYOUT_API   U_EXPORT
    471 #define U_LAYOUTEX_API U_IMPORT
    472 #define U_IO_API       U_IMPORT
    473 #define U_TOOLUTIL_API U_IMPORT
    474 #elif defined(U_LAYOUTEX_IMPLEMENTATION)
    475 #define U_DATA_API     U_IMPORT
    476 #define U_COMMON_API   U_IMPORT
    477 #define U_I18N_API     U_IMPORT
    478 #define U_LAYOUT_API   U_IMPORT
    479 #define U_LAYOUTEX_API U_EXPORT
    480 #define U_IO_API       U_IMPORT
    481 #define U_TOOLUTIL_API U_IMPORT
    482 #elif defined(U_IO_IMPLEMENTATION)
    483 #define U_DATA_API     U_IMPORT
    484 #define U_COMMON_API   U_IMPORT
    485 #define U_I18N_API     U_IMPORT
    486 #define U_LAYOUT_API   U_IMPORT
    487 #define U_LAYOUTEX_API U_IMPORT
    488 #define U_IO_API       U_EXPORT
    489 #define U_TOOLUTIL_API U_IMPORT
    490 #elif defined(U_TOOLUTIL_IMPLEMENTATION)
    491 #define U_DATA_API     U_IMPORT
    492 #define U_COMMON_API   U_IMPORT
    493 #define U_I18N_API     U_IMPORT
    494 #define U_LAYOUT_API   U_IMPORT
    495 #define U_LAYOUTEX_API U_IMPORT
    496 #define U_IO_API       U_IMPORT
    497 #define U_TOOLUTIL_API U_EXPORT
    498 #else
    499 #define U_DATA_API     U_IMPORT
    500 #define U_COMMON_API   U_IMPORT
    501 #define U_I18N_API     U_IMPORT
    502 #define U_LAYOUT_API   U_IMPORT
    503 #define U_LAYOUTEX_API U_IMPORT
    504 #define U_IO_API       U_IMPORT
    505 #define U_TOOLUTIL_API U_IMPORT
    506 #endif
    507 
    508 /**
    509  * \def U_STANDARD_CPP_NAMESPACE
    510  * Control of C++ Namespace
    511  * @stable ICU 2.0
    512  */
    513 #ifdef __cplusplus
    514 #define U_STANDARD_CPP_NAMESPACE        ::
    515 #else
    516 #define U_STANDARD_CPP_NAMESPACE
    517 #endif
    518 
    519 
    520 /*===========================================================================*/
    521 /* Global delete operator                                                    */
    522 /*===========================================================================*/
    523 
    524 /*
    525  * The ICU4C library must not use the global new and delete operators.
    526  * These operators here are defined to enable testing for this.
    527  * See Jitterbug 2581 for details of why this is necessary.
    528  *
    529  * Verification that ICU4C's memory usage is correct, i.e.,
    530  * that global new/delete are not used:
    531  *
    532  * a) Check for imports of global new/delete (see uobject.cpp for details)
    533  * b) Verify that new is never imported.
    534  * c) Verify that delete is only imported from object code for interface/mixin classes.
    535  * d) Add global delete and delete[] only for the ICU4C library itself
    536  *    and define them in a way that crashes or otherwise easily shows a problem.
    537  *
    538  * The following implements d).
    539  * The operator implementations crash; this is intentional and used for library debugging.
    540  *
    541  * Note: This is currently only done on Windows because
    542  * some Linux/Unix compilers have problems with defining global new/delete.
    543  * On Windows, U_WINDOWS is defined, and it is _MSC_VER>=1200 for MSVC 6.0 and higher.
    544  */
    545 #if defined(XP_CPLUSPLUS) && defined(U_WINDOWS) && U_DEBUG && U_OVERRIDE_CXX_ALLOCATION && (_MSC_VER>=1200) && !defined(U_STATIC_IMPLEMENTATION) && (defined(U_COMMON_IMPLEMENTATION) || defined(U_I18N_IMPLEMENTATION) || defined(U_IO_IMPLEMENTATION) || defined(U_LAYOUT_IMPLEMENTATION) || defined(U_LAYOUTEX_IMPLEMENTATION))
    546 
    547 #ifndef U_HIDE_INTERNAL_API
    548 /**
    549  * Global operator new, defined only inside ICU4C, must not be used.
    550  * Crashes intentionally.
    551  * @internal
    552  */
    553 inline void *
    554 operator new(size_t /*size*/) {
    555     char *q=NULL;
    556     *q=5; /* break it */
    557     return q;
    558 }
    559 
    560 #ifdef _Ret_bytecap_
    561 /* This is only needed to suppress a Visual C++ 2008 warning for operator new[]. */
    562 _Ret_bytecap_(_Size)
    563 #endif
    564 /**
    565  * Global operator new[], defined only inside ICU4C, must not be used.
    566  * Crashes intentionally.
    567  * @internal
    568  */
    569 inline void *
    570 operator new[](size_t /*size*/) {
    571     char *q=NULL;
    572     *q=5; /* break it */
    573     return q;
    574 }
    575 
    576 /**
    577  * Global operator delete, defined only inside ICU4C, must not be used.
    578  * Crashes intentionally.
    579  * @internal
    580  */
    581 inline void
    582 operator delete(void * /*p*/) {
    583     char *q=NULL;
    584     *q=5; /* break it */
    585 }
    586 
    587 /**
    588  * Global operator delete[], defined only inside ICU4C, must not be used.
    589  * Crashes intentionally.
    590  * @internal
    591  */
    592 inline void
    593 operator delete[](void * /*p*/) {
    594     char *q=NULL;
    595     *q=5; /* break it */
    596 }
    597 
    598 #endif /* U_HIDE_INTERNAL_API */
    599 #endif
    600 
    601 /*===========================================================================*/
    602 /* UErrorCode */
    603 /*===========================================================================*/
    604 
    605 /**
    606  * Error code to replace exception handling, so that the code is compatible with all C++ compilers,
    607  * and to use the same mechanism for C and C++.
    608  *
    609  * \par
    610  * ICU functions that take a reference (C++) or a pointer (C) to a UErrorCode
    611  * first test if(U_FAILURE(errorCode)) { return immediately; }
    612  * so that in a chain of such functions the first one that sets an error code
    613  * causes the following ones to not perform any operations.
    614  *
    615  * \par
    616  * Error codes should be tested using U_FAILURE() and U_SUCCESS().
    617  * @stable ICU 2.0
    618  */
    619 typedef enum UErrorCode {
    620     /* The ordering of U_ERROR_INFO_START Vs U_USING_FALLBACK_WARNING looks weird
    621      * and is that way because VC++ debugger displays first encountered constant,
    622      * which is not the what the code is used for
    623      */
    624 
    625     U_USING_FALLBACK_WARNING  = -128,   /**< A resource bundle lookup returned a fallback result (not an error) */
    626 
    627     U_ERROR_WARNING_START     = -128,   /**< Start of information results (semantically successful) */
    628 
    629     U_USING_DEFAULT_WARNING   = -127,   /**< A resource bundle lookup returned a result from the root locale (not an error) */
    630 
    631     U_SAFECLONE_ALLOCATED_WARNING = -126, /**< A SafeClone operation required allocating memory (informational only) */
    632 
    633     U_STATE_OLD_WARNING       = -125,   /**< ICU has to use compatibility layer to construct the service. Expect performance/memory usage degradation. Consider upgrading */
    634 
    635     U_STRING_NOT_TERMINATED_WARNING = -124,/**< An output string could not be NUL-terminated because output length==destCapacity. */
    636 
    637     U_SORT_KEY_TOO_SHORT_WARNING = -123, /**< Number of levels requested in getBound is higher than the number of levels in the sort key */
    638 
    639     U_AMBIGUOUS_ALIAS_WARNING = -122,   /**< This converter alias can go to different converter implementations */
    640 
    641     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 */
    642 
    643     U_PLUGIN_CHANGED_LEVEL_WARNING = -120, /**< A plugin caused a level change. May not be an error, but later plugins may not load. */
    644 
    645     U_ERROR_WARNING_LIMIT,              /**< This must always be the last warning value to indicate the limit for UErrorCode warnings (last warning code +1) */
    646 
    647 
    648     U_ZERO_ERROR              =  0,     /**< No error, no warning. */
    649 
    650     U_ILLEGAL_ARGUMENT_ERROR  =  1,     /**< Start of codes indicating failure */
    651     U_MISSING_RESOURCE_ERROR  =  2,     /**< The requested resource cannot be found */
    652     U_INVALID_FORMAT_ERROR    =  3,     /**< Data format is not what is expected */
    653     U_FILE_ACCESS_ERROR       =  4,     /**< The requested file cannot be found */
    654     U_INTERNAL_PROGRAM_ERROR  =  5,     /**< Indicates a bug in the library code */
    655     U_MESSAGE_PARSE_ERROR     =  6,     /**< Unable to parse a message (message format) */
    656     U_MEMORY_ALLOCATION_ERROR =  7,     /**< Memory allocation error */
    657     U_INDEX_OUTOFBOUNDS_ERROR =  8,     /**< Trying to access the index that is out of bounds */
    658     U_PARSE_ERROR             =  9,     /**< Equivalent to Java ParseException */
    659     U_INVALID_CHAR_FOUND      = 10,     /**< Character conversion: Unmappable input sequence. In other APIs: Invalid character. */
    660     U_TRUNCATED_CHAR_FOUND    = 11,     /**< Character conversion: Incomplete input sequence. */
    661     U_ILLEGAL_CHAR_FOUND      = 12,     /**< Character conversion: Illegal input sequence/combination of input units. */
    662     U_INVALID_TABLE_FORMAT    = 13,     /**< Conversion table file found, but corrupted */
    663     U_INVALID_TABLE_FILE      = 14,     /**< Conversion table file not found */
    664     U_BUFFER_OVERFLOW_ERROR   = 15,     /**< A result would not fit in the supplied buffer */
    665     U_UNSUPPORTED_ERROR       = 16,     /**< Requested operation not supported in current context */
    666     U_RESOURCE_TYPE_MISMATCH  = 17,     /**< an operation is requested over a resource that does not support it */
    667     U_ILLEGAL_ESCAPE_SEQUENCE = 18,     /**< ISO-2022 illlegal escape sequence */
    668     U_UNSUPPORTED_ESCAPE_SEQUENCE = 19, /**< ISO-2022 unsupported escape sequence */
    669     U_NO_SPACE_AVAILABLE      = 20,     /**< No space available for in-buffer expansion for Arabic shaping */
    670     U_CE_NOT_FOUND_ERROR      = 21,     /**< Currently used only while setting variable top, but can be used generally */
    671     U_PRIMARY_TOO_LONG_ERROR  = 22,     /**< User tried to set variable top to a primary that is longer than two bytes */
    672     U_STATE_TOO_OLD_ERROR     = 23,     /**< ICU cannot construct a service from this state, as it is no longer supported */
    673     U_TOO_MANY_ALIASES_ERROR  = 24,     /**< There are too many aliases in the path to the requested resource.
    674                                              It is very possible that a circular alias definition has occured */
    675     U_ENUM_OUT_OF_SYNC_ERROR  = 25,     /**< UEnumeration out of sync with underlying collection */
    676     U_INVARIANT_CONVERSION_ERROR = 26,  /**< Unable to convert a UChar* string to char* with the invariant converter. */
    677     U_INVALID_STATE_ERROR     = 27,     /**< Requested operation can not be completed with ICU in its current state */
    678     U_COLLATOR_VERSION_MISMATCH = 28,   /**< Collator version is not compatible with the base version */
    679     U_USELESS_COLLATOR_ERROR  = 29,     /**< Collator is options only and no base is specified */
    680     U_NO_WRITE_PERMISSION     = 30,     /**< Attempt to modify read-only or constant data. */
    681 
    682     U_STANDARD_ERROR_LIMIT,             /**< This must always be the last value to indicate the limit for standard errors */
    683     /*
    684      * the error code range 0x10000 0x10100 are reserved for Transliterator
    685      */
    686     U_BAD_VARIABLE_DEFINITION=0x10000,/**< Missing '$' or duplicate variable name */
    687     U_PARSE_ERROR_START = 0x10000,    /**< Start of Transliterator errors */
    688     U_MALFORMED_RULE,                 /**< Elements of a rule are misplaced */
    689     U_MALFORMED_SET,                  /**< A UnicodeSet pattern is invalid*/
    690     U_MALFORMED_SYMBOL_REFERENCE,     /**< UNUSED as of ICU 2.4 */
    691     U_MALFORMED_UNICODE_ESCAPE,       /**< A Unicode escape pattern is invalid*/
    692     U_MALFORMED_VARIABLE_DEFINITION,  /**< A variable definition is invalid */
    693     U_MALFORMED_VARIABLE_REFERENCE,   /**< A variable reference is invalid */
    694     U_MISMATCHED_SEGMENT_DELIMITERS,  /**< UNUSED as of ICU 2.4 */
    695     U_MISPLACED_ANCHOR_START,         /**< A start anchor appears at an illegal position */
    696     U_MISPLACED_CURSOR_OFFSET,        /**< A cursor offset occurs at an illegal position */
    697     U_MISPLACED_QUANTIFIER,           /**< A quantifier appears after a segment close delimiter */
    698     U_MISSING_OPERATOR,               /**< A rule contains no operator */
    699     U_MISSING_SEGMENT_CLOSE,          /**< UNUSED as of ICU 2.4 */
    700     U_MULTIPLE_ANTE_CONTEXTS,         /**< More than one ante context */
    701     U_MULTIPLE_CURSORS,               /**< More than one cursor */
    702     U_MULTIPLE_POST_CONTEXTS,         /**< More than one post context */
    703     U_TRAILING_BACKSLASH,             /**< A dangling backslash */
    704     U_UNDEFINED_SEGMENT_REFERENCE,    /**< A segment reference does not correspond to a defined segment */
    705     U_UNDEFINED_VARIABLE,             /**< A variable reference does not correspond to a defined variable */
    706     U_UNQUOTED_SPECIAL,               /**< A special character was not quoted or escaped */
    707     U_UNTERMINATED_QUOTE,             /**< A closing single quote is missing */
    708     U_RULE_MASK_ERROR,                /**< A rule is hidden by an earlier more general rule */
    709     U_MISPLACED_COMPOUND_FILTER,      /**< A compound filter is in an invalid location */
    710     U_MULTIPLE_COMPOUND_FILTERS,      /**< More than one compound filter */
    711     U_INVALID_RBT_SYNTAX,             /**< A "::id" rule was passed to the RuleBasedTransliterator parser */
    712     U_INVALID_PROPERTY_PATTERN,       /**< UNUSED as of ICU 2.4 */
    713     U_MALFORMED_PRAGMA,               /**< A 'use' pragma is invlalid */
    714     U_UNCLOSED_SEGMENT,               /**< A closing ')' is missing */
    715     U_ILLEGAL_CHAR_IN_SEGMENT,        /**< UNUSED as of ICU 2.4 */
    716     U_VARIABLE_RANGE_EXHAUSTED,       /**< Too many stand-ins generated for the given variable range */
    717     U_VARIABLE_RANGE_OVERLAP,         /**< The variable range overlaps characters used in rules */
    718     U_ILLEGAL_CHARACTER,              /**< A special character is outside its allowed context */
    719     U_INTERNAL_TRANSLITERATOR_ERROR,  /**< Internal transliterator system error */
    720     U_INVALID_ID,                     /**< A "::id" rule specifies an unknown transliterator */
    721     U_INVALID_FUNCTION,               /**< A "&fn()" rule specifies an unknown transliterator */
    722     U_PARSE_ERROR_LIMIT,              /**< The limit for Transliterator errors */
    723 
    724     /*
    725      * the error code range 0x10100 0x10200 are reserved for formatting API parsing error
    726      */
    727     U_UNEXPECTED_TOKEN=0x10100,       /**< Syntax error in format pattern */
    728     U_FMT_PARSE_ERROR_START=0x10100,  /**< Start of format library errors */
    729     U_MULTIPLE_DECIMAL_SEPARATORS,    /**< More than one decimal separator in number pattern */
    730     U_MULTIPLE_DECIMAL_SEPERATORS = U_MULTIPLE_DECIMAL_SEPARATORS, /**< Typo: kept for backward compatibility. Use U_MULTIPLE_DECIMAL_SEPARATORS */
    731     U_MULTIPLE_EXPONENTIAL_SYMBOLS,   /**< More than one exponent symbol in number pattern */
    732     U_MALFORMED_EXPONENTIAL_PATTERN,  /**< Grouping symbol in exponent pattern */
    733     U_MULTIPLE_PERCENT_SYMBOLS,       /**< More than one percent symbol in number pattern */
    734     U_MULTIPLE_PERMILL_SYMBOLS,       /**< More than one permill symbol in number pattern */
    735     U_MULTIPLE_PAD_SPECIFIERS,        /**< More than one pad symbol in number pattern */
    736     U_PATTERN_SYNTAX_ERROR,           /**< Syntax error in format pattern */
    737     U_ILLEGAL_PAD_POSITION,           /**< Pad symbol misplaced in number pattern */
    738     U_UNMATCHED_BRACES,               /**< Braces do not match in message pattern */
    739     U_UNSUPPORTED_PROPERTY,           /**< UNUSED as of ICU 2.4 */
    740     U_UNSUPPORTED_ATTRIBUTE,          /**< UNUSED as of ICU 2.4 */
    741     U_ARGUMENT_TYPE_MISMATCH,         /**< Argument name and argument index mismatch in MessageFormat functions */
    742     U_DUPLICATE_KEYWORD,              /**< Duplicate keyword in PluralFormat */
    743     U_UNDEFINED_KEYWORD,              /**< Undefined Plural keyword */
    744     U_DEFAULT_KEYWORD_MISSING,        /**< Missing DEFAULT rule in plural rules */
    745     U_DECIMAL_NUMBER_SYNTAX_ERROR,    /**< Decimal number syntax error */
    746     U_FMT_PARSE_ERROR_LIMIT,          /**< The limit for format library errors */
    747 
    748     /*
    749      * the error code range 0x10200 0x102ff are reserved for Break Iterator related error
    750      */
    751     U_BRK_INTERNAL_ERROR=0x10200,          /**< An internal error (bug) was detected.             */
    752     U_BRK_ERROR_START=0x10200,             /**< Start of codes indicating Break Iterator failures */
    753     U_BRK_HEX_DIGITS_EXPECTED,             /**< Hex digits expected as part of a escaped char in a rule. */
    754     U_BRK_SEMICOLON_EXPECTED,              /**< Missing ';' at the end of a RBBI rule.            */
    755     U_BRK_RULE_SYNTAX,                     /**< Syntax error in RBBI rule.                        */
    756     U_BRK_UNCLOSED_SET,                    /**< UnicodeSet witing an RBBI rule missing a closing ']'.  */
    757     U_BRK_ASSIGN_ERROR,                    /**< Syntax error in RBBI rule assignment statement.   */
    758     U_BRK_VARIABLE_REDFINITION,            /**< RBBI rule $Variable redefined.                    */
    759     U_BRK_MISMATCHED_PAREN,                /**< Mis-matched parentheses in an RBBI rule.          */
    760     U_BRK_NEW_LINE_IN_QUOTED_STRING,       /**< Missing closing quote in an RBBI rule.            */
    761     U_BRK_UNDEFINED_VARIABLE,              /**< Use of an undefined $Variable in an RBBI rule.    */
    762     U_BRK_INIT_ERROR,                      /**< Initialization failure.  Probable missing ICU Data. */
    763     U_BRK_RULE_EMPTY_SET,                  /**< Rule contains an empty Unicode Set.               */
    764     U_BRK_UNRECOGNIZED_OPTION,             /**< !!option in RBBI rules not recognized.            */
    765     U_BRK_MALFORMED_RULE_TAG,              /**< The {nnn} tag on a rule is mal formed             */
    766     U_BRK_ERROR_LIMIT,                     /**< This must always be the last value to indicate the limit for Break Iterator failures */
    767 
    768     /*
    769      * The error codes in the range 0x10300-0x103ff are reserved for regular expression related errrs
    770      */
    771     U_REGEX_INTERNAL_ERROR=0x10300,       /**< An internal error (bug) was detected.              */
    772     U_REGEX_ERROR_START=0x10300,          /**< Start of codes indicating Regexp failures          */
    773     U_REGEX_RULE_SYNTAX,                  /**< Syntax error in regexp pattern.                    */
    774     U_REGEX_INVALID_STATE,                /**< RegexMatcher in invalid state for requested operation */
    775     U_REGEX_BAD_ESCAPE_SEQUENCE,          /**< Unrecognized backslash escape sequence in pattern  */
    776     U_REGEX_PROPERTY_SYNTAX,              /**< Incorrect Unicode property                         */
    777     U_REGEX_UNIMPLEMENTED,                /**< Use of regexp feature that is not yet implemented. */
    778     U_REGEX_MISMATCHED_PAREN,             /**< Incorrectly nested parentheses in regexp pattern.  */
    779     U_REGEX_NUMBER_TOO_BIG,               /**< Decimal number is too large.                       */
    780     U_REGEX_BAD_INTERVAL,                 /**< Error in {min,max} interval                        */
    781     U_REGEX_MAX_LT_MIN,                   /**< In {min,max}, max is less than min.                */
    782     U_REGEX_INVALID_BACK_REF,             /**< Back-reference to a non-existent capture group.    */
    783     U_REGEX_INVALID_FLAG,                 /**< Invalid value for match mode flags.                */
    784     U_REGEX_LOOK_BEHIND_LIMIT,            /**< Look-Behind pattern matches must have a bounded maximum length.    */
    785     U_REGEX_SET_CONTAINS_STRING,          /**< Regexps cannot have UnicodeSets containing strings.*/
    786     U_REGEX_OCTAL_TOO_BIG,                /**< Octal character constants must be <= 0377.         */
    787     U_REGEX_MISSING_CLOSE_BRACKET,        /**< Missing closing bracket on a bracket expression.   */
    788     U_REGEX_INVALID_RANGE,                /**< In a character range [x-y], x is greater than y.   */
    789     U_REGEX_STACK_OVERFLOW,               /**< Regular expression backtrack stack overflow.       */
    790     U_REGEX_TIME_OUT,                     /**< Maximum allowed match time exceeded                */
    791     U_REGEX_STOPPED_BY_CALLER,            /**< Matching operation aborted by user callback fn.    */
    792     U_REGEX_ERROR_LIMIT,                  /**< This must always be the last value to indicate the limit for regexp errors */
    793 
    794     /*
    795      * The error code in the range 0x10400-0x104ff are reserved for IDNA related error codes
    796      */
    797     U_IDNA_PROHIBITED_ERROR=0x10400,
    798     U_IDNA_ERROR_START=0x10400,
    799     U_IDNA_UNASSIGNED_ERROR,
    800     U_IDNA_CHECK_BIDI_ERROR,
    801     U_IDNA_STD3_ASCII_RULES_ERROR,
    802     U_IDNA_ACE_PREFIX_ERROR,
    803     U_IDNA_VERIFICATION_ERROR,
    804     U_IDNA_LABEL_TOO_LONG_ERROR,
    805     U_IDNA_ZERO_LENGTH_LABEL_ERROR,
    806     U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR,
    807     U_IDNA_ERROR_LIMIT,
    808     /*
    809      * Aliases for StringPrep
    810      */
    811     U_STRINGPREP_PROHIBITED_ERROR = U_IDNA_PROHIBITED_ERROR,
    812     U_STRINGPREP_UNASSIGNED_ERROR = U_IDNA_UNASSIGNED_ERROR,
    813     U_STRINGPREP_CHECK_BIDI_ERROR = U_IDNA_CHECK_BIDI_ERROR,
    814 
    815     /*
    816      * The error code in the range 0x10500-0x105ff are reserved for Plugin related error codes
    817      */
    818     U_PLUGIN_ERROR_START=0x10500,         /**< Start of codes indicating plugin failures */
    819     U_PLUGIN_TOO_HIGH=0x10500,            /**< The plugin's level is too high to be loaded right now. */
    820     U_PLUGIN_DIDNT_SET_LEVEL,             /**< The plugin didn't call uplug_setPlugLevel in response to a QUERY */
    821     U_PLUGIN_ERROR_LIMIT,                 /**< This must always be the last value to indicate the limit for plugin errors */
    822 
    823     U_ERROR_LIMIT=U_PLUGIN_ERROR_LIMIT      /**< This must always be the last value to indicate the limit for UErrorCode (last error code +1) */
    824 } UErrorCode;
    825 
    826 /* Use the following to determine if an UErrorCode represents */
    827 /* operational success or failure. */
    828 
    829 #ifdef XP_CPLUSPLUS
    830     /**
    831      * Does the error code indicate success?
    832      * @stable ICU 2.0
    833      */
    834     static
    835     inline UBool U_SUCCESS(UErrorCode code) { return (UBool)(code<=U_ZERO_ERROR); }
    836     /**
    837      * Does the error code indicate a failure?
    838      * @stable ICU 2.0
    839      */
    840     static
    841     inline UBool U_FAILURE(UErrorCode code) { return (UBool)(code>U_ZERO_ERROR); }
    842 #else
    843     /**
    844      * Does the error code indicate success?
    845      * @stable ICU 2.0
    846      */
    847 #   define U_SUCCESS(x) ((x)<=U_ZERO_ERROR)
    848     /**
    849      * Does the error code indicate a failure?
    850      * @stable ICU 2.0
    851      */
    852 #   define U_FAILURE(x) ((x)>U_ZERO_ERROR)
    853 #endif
    854 
    855 /**
    856  * Return a string for a UErrorCode value.
    857  * The string will be the same as the name of the error code constant
    858  * in the UErrorCode enum above.
    859  * @stable ICU 2.0
    860  */
    861 U_STABLE const char * U_EXPORT2
    862 u_errorName(UErrorCode code);
    863 
    864 
    865 #endif /* _UTYPES */
    866