Home | History | Annotate | Download | only in unicode
      1 /*
      2 **********************************************************************
      3 *   Copyright (C) 1996-2011, 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 #include "float.h"
     41 
     42 /*!
     43  * \file
     44  * \brief Basic definitions for ICU, for both C and C++ APIs
     45  *
     46  * This file defines basic types, constants, and enumerations directly or
     47  * indirectly by including other header files, especially utf.h for the
     48  * basic character and string definitions and umachine.h for consistent
     49  * integer and other types.
     50  */
     51 
     52 
     53 /**
     54  * \def U_SHOW_CPLUSPLUS_API
     55  * @internal
     56  */
     57 #ifdef XP_CPLUSPLUS
     58 #   ifndef U_SHOW_CPLUSPLUS_API
     59 #       define U_SHOW_CPLUSPLUS_API 1
     60 #   endif
     61 #else
     62 #   undef U_SHOW_CPLUSPLUS_API
     63 #   define U_SHOW_CPLUSPLUS_API 0
     64 #endif
     65 
     66 /** @{ API visibility control */
     67 
     68 /**
     69  * \def U_HIDE_DRAFT_API
     70  * Define this to 1 to request that draft API be "hidden"
     71  * @internal
     72  */
     73 /**
     74  * \def U_HIDE_INTERNAL_API
     75  * Define this to 1 to request that internal API be "hidden"
     76  * @internal
     77  */
     78 #if !U_DEFAULT_SHOW_DRAFT && !defined(U_SHOW_DRAFT_API)
     79 #define U_HIDE_DRAFT_API 1
     80 #endif
     81 #if !U_DEFAULT_SHOW_DRAFT && !defined(U_SHOW_INTERNAL_API)
     82 #define U_HIDE_INTERNAL_API 1
     83 #endif
     84 
     85 #ifdef U_HIDE_DRAFT_API
     86 #include "unicode/udraft.h"
     87 #endif
     88 
     89 #ifdef U_HIDE_DEPRECATED_API
     90 #include "unicode/udeprctd.h"
     91 #endif
     92 
     93 #ifdef U_HIDE_DEPRECATED_API
     94 #include "unicode/uobslete.h"
     95 #endif
     96 
     97 #ifdef U_HIDE_INTERNAL_API
     98 #include "unicode/uintrnal.h"
     99 #endif
    100 
    101 #ifdef U_HIDE_SYSTEM_API
    102 #include "unicode/usystem.h"
    103 #endif
    104 
    105 /** @} */
    106 
    107 
    108 /*===========================================================================*/
    109 /* char Character set family                                                 */
    110 /*===========================================================================*/
    111 
    112 /**
    113  * U_CHARSET_FAMILY is equal to this value when the platform is an ASCII based platform.
    114  * @stable ICU 2.0
    115  */
    116 #define U_ASCII_FAMILY 0
    117 
    118 /**
    119  * U_CHARSET_FAMILY is equal to this value when the platform is an EBCDIC based platform.
    120  * @stable ICU 2.0
    121  */
    122 #define U_EBCDIC_FAMILY 1
    123 
    124 /**
    125  * \def U_CHARSET_FAMILY
    126  *
    127  * <p>These definitions allow to specify the encoding of text
    128  * in the char data type as defined by the platform and the compiler.
    129  * It is enough to determine the code point values of "invariant characters",
    130  * which are the ones shared by all encodings that are in use
    131  * on a given platform.</p>
    132  *
    133  * <p>Those "invariant characters" should be all the uppercase and lowercase
    134  * latin letters, the digits, the space, and "basic punctuation".
    135  * Also, '\\n', '\\r', '\\t' should be available.</p>
    136  *
    137  * <p>The list of "invariant characters" is:<br>
    138  * \code
    139  *    A-Z  a-z  0-9  SPACE  "  %  &amp;  '  (  )  *  +  ,  -  .  /  :  ;  <  =  >  ?  _
    140  * \endcode
    141  * <br>
    142  * (52 letters + 10 numbers + 20 punc/sym/space = 82 total)</p>
    143  *
    144  * <p>This matches the IBM Syntactic Character Set (CS 640).</p>
    145  *
    146  * <p>In other words, all the graphic characters in 7-bit ASCII should
    147  * be safely accessible except the following:</p>
    148  *
    149  * \code
    150  *    '\' <backslash>
    151  *    '[' <left bracket>
    152  *    ']' <right bracket>
    153  *    '{' <left brace>
    154  *    '}' <right brace>
    155  *    '^' <circumflex>
    156  *    '~' <tilde>
    157  *    '!' <exclamation mark>
    158  *    '#' <number sign>
    159  *    '|' <vertical line>
    160  *    '$' <dollar sign>
    161  *    '@' <commercial at>
    162  *    '`' <grave accent>
    163  * \endcode
    164  * @stable ICU 2.0
    165  */
    166 
    167 #ifndef U_CHARSET_FAMILY
    168 #   define U_CHARSET_FAMILY 0
    169 #endif
    170 
    171 /**
    172  * \def U_CHARSET_IS_UTF8
    173  *
    174  * Hardcode the default charset to UTF-8.
    175  *
    176  * If this is set to 1, then
    177  * - ICU will assume that all non-invariant char*, StringPiece, std::string etc.
    178  *   contain UTF-8 text, regardless of what the system API uses
    179  * - some ICU code will use fast functions like u_strFromUTF8()
    180  *   rather than the more general and more heavy-weight conversion API (ucnv.h)
    181  * - ucnv_getDefaultName() always returns "UTF-8"
    182  * - ucnv_setDefaultName() is disabled and will not change the default charset
    183  * - static builds of ICU are smaller
    184  * - more functionality is available with the UCONFIG_NO_CONVERSION build-time
    185  *   configuration option (see unicode/uconfig.h)
    186  * - the UCONFIG_NO_CONVERSION build option in uconfig.h is more usable
    187  *
    188  * @stable ICU 4.2
    189  * @see UCONFIG_NO_CONVERSION
    190  */
    191 #ifndef U_CHARSET_IS_UTF8
    192 #   define U_CHARSET_IS_UTF8 0
    193 #endif
    194 
    195 /*===========================================================================*/
    196 /* ICUDATA naming scheme                                                     */
    197 /*===========================================================================*/
    198 
    199 /**
    200  * \def U_ICUDATA_TYPE_LETTER
    201  *
    202  * This is a platform-dependent string containing one letter:
    203  * - b for big-endian, ASCII-family platforms
    204  * - l for little-endian, ASCII-family platforms
    205  * - e for big-endian, EBCDIC-family platforms
    206  * This letter is part of the common data file name.
    207  * @stable ICU 2.0
    208  */
    209 
    210 /**
    211  * \def U_ICUDATA_TYPE_LITLETTER
    212  * The non-string form of U_ICUDATA_TYPE_LETTER
    213  * @stable ICU 2.0
    214  */
    215 #if U_CHARSET_FAMILY
    216 #   if U_IS_BIG_ENDIAN
    217    /* EBCDIC - should always be BE */
    218 #     define U_ICUDATA_TYPE_LETTER "e"
    219 #     define U_ICUDATA_TYPE_LITLETTER e
    220 #   else
    221 #     error "Don't know what to do with little endian EBCDIC!"
    222 #     define U_ICUDATA_TYPE_LETTER "x"
    223 #     define U_ICUDATA_TYPE_LITLETTER x
    224 #   endif
    225 #else
    226 #   if U_IS_BIG_ENDIAN
    227       /* Big-endian ASCII */
    228 #     define U_ICUDATA_TYPE_LETTER "b"
    229 #     define U_ICUDATA_TYPE_LITLETTER b
    230 #   else
    231       /* Little-endian ASCII */
    232 #     define U_ICUDATA_TYPE_LETTER "l"
    233 #     define U_ICUDATA_TYPE_LITLETTER l
    234 #   endif
    235 #endif
    236 
    237 /**
    238  * A single string literal containing the icudata stub name. i.e. 'icudt18e' for
    239  * ICU 1.8.x on EBCDIC, etc..
    240  * @stable ICU 2.0
    241  */
    242 #define U_ICUDATA_NAME    "icudt" U_ICU_VERSION_SHORT U_ICUDATA_TYPE_LETTER  /**< @internal */
    243 #define U_USRDATA_NAME    "usrdt" U_ICU_VERSION_SHORT U_ICUDATA_TYPE_LETTER  /**< @internal */
    244 #define U_USE_USRDATA     1  /**< @internal */
    245 
    246 /**
    247  *  U_ICU_ENTRY_POINT is the name of the DLL entry point to the ICU data library.
    248  *    Defined as a literal, not a string.
    249  *    Tricky Preprocessor use - ## operator replaces macro paramters with the literal string
    250  *                              from the corresponding macro invocation, _before_ other macro substitutions.
    251  *                              Need a nested \#defines to get the actual version numbers rather than
    252  *                              the literal text U_ICU_VERSION_MAJOR_NUM into the name.
    253  *                              The net result will be something of the form
    254  *                                  \#define U_ICU_ENTRY_POINT icudt19_dat
    255  * @stable ICU 2.4
    256  */
    257 #define U_ICUDATA_ENTRY_POINT  U_DEF2_ICUDATA_ENTRY_POINT(U_ICU_VERSION_MAJOR_NUM, U_ICU_VERSION_MINOR_NUM)
    258 
    259 /**
    260  * Do not use.
    261  * @internal
    262  */
    263 #define U_DEF2_ICUDATA_ENTRY_POINT(major, minor) U_DEF_ICUDATA_ENTRY_POINT(major, minor)
    264 /**
    265  * Do not use.
    266  * @internal
    267  */
    268 #ifndef U_DEF_ICUDATA_ENTRY_POINT
    269 /* affected by symbol renaming. See platform.h */
    270 #define U_DEF_ICUDATA_ENTRY_POINT(major, minor) icudt##major##minor##_dat
    271 #endif
    272 
    273 /**
    274  * \def U_CALLCONV
    275  * Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary
    276  * in callback function typedefs to make sure that the calling convention
    277  * is compatible.
    278  *
    279  * This is only used for non-ICU-API functions.
    280  * When a function is a public ICU API,
    281  * you must use the U_CAPI and U_EXPORT2 qualifiers.
    282  * @stable ICU 2.0
    283  */
    284 #if defined(OS390) && defined(XP_CPLUSPLUS)
    285 #    define U_CALLCONV __cdecl
    286 #else
    287 #    define U_CALLCONV U_EXPORT2
    288 #endif
    289 
    290 /**
    291  * \def NULL
    292  * Define NULL if necessary, to 0 for C++ and to ((void *)0) for C.
    293  * @stable ICU 2.0
    294  */
    295 #ifndef NULL
    296 #ifdef XP_CPLUSPLUS
    297 #define NULL    0
    298 #else
    299 #define NULL    ((void *)0)
    300 #endif
    301 #endif
    302 
    303 /*===========================================================================*/
    304 /* Calendar/TimeZone data types                                              */
    305 /*===========================================================================*/
    306 
    307 /**
    308  * Date and Time data type.
    309  * This is a primitive data type that holds the date and time
    310  * as the number of milliseconds since 1970-jan-01, 00:00 UTC.
    311  * UTC leap seconds are ignored.
    312  * @stable ICU 2.0
    313  */
    314 typedef double UDate;
    315 
    316 /** The number of milliseconds per second @stable ICU 2.0 */
    317 #define U_MILLIS_PER_SECOND        (1000)
    318 /** The number of milliseconds per minute @stable ICU 2.0 */
    319 #define U_MILLIS_PER_MINUTE       (60000)
    320 /** The number of milliseconds per hour @stable ICU 2.0 */
    321 #define U_MILLIS_PER_HOUR       (3600000)
    322 /** The number of milliseconds per day @stable ICU 2.0 */
    323 #define U_MILLIS_PER_DAY       (86400000)
    324 
    325 /**
    326  * Maximum UDate value
    327  * @draft ICU 4.8
    328  */
    329 #define U_DATE_MAX DBL_MAX
    330 
    331 /**
    332  * Minimum UDate value
    333  * @draft ICU 4.8
    334  */
    335 #define U_DATE_MIN -U_DATE_MAX
    336 
    337 
    338 
    339 /*===========================================================================*/
    340 /* UClassID-based RTTI */
    341 /*===========================================================================*/
    342 
    343 /**
    344  * UClassID is used to identify classes without using RTTI, since RTTI
    345  * is not yet supported by all C++ compilers.  Each class hierarchy which needs
    346  * to implement polymorphic clone() or operator==() defines two methods,
    347  * described in detail below.  UClassID values can be compared using
    348  * operator==(). Nothing else should be done with them.
    349  *
    350  * \par
    351  * getDynamicClassID() is declared in the base class of the hierarchy as
    352  * a pure virtual.  Each concrete subclass implements it in the same way:
    353  *
    354  * \code
    355  *      class Base {
    356  *      public:
    357  *          virtual UClassID getDynamicClassID() const = 0;
    358  *      }
    359  *
    360  *      class Derived {
    361  *      public:
    362  *          virtual UClassID getDynamicClassID() const
    363  *            { return Derived::getStaticClassID(); }
    364  *      }
    365  * \endcode
    366  *
    367  * Each concrete class implements getStaticClassID() as well, which allows
    368  * clients to test for a specific type.
    369  *
    370  * \code
    371  *      class Derived {
    372  *      public:
    373  *          static UClassID U_EXPORT2 getStaticClassID();
    374  *      private:
    375  *          static char fgClassID;
    376  *      }
    377  *
    378  *      // In Derived.cpp:
    379  *      UClassID Derived::getStaticClassID()
    380  *        { return (UClassID)&Derived::fgClassID; }
    381  *      char Derived::fgClassID = 0; // Value is irrelevant
    382  * \endcode
    383  * @stable ICU 2.0
    384  */
    385 typedef void* UClassID;
    386 
    387 /*===========================================================================*/
    388 /* Shared library/DLL import-export API control                              */
    389 /*===========================================================================*/
    390 
    391 /*
    392  * Control of symbol import/export.
    393  * ICU is separated into three libraries.
    394  */
    395 
    396 /*
    397  * \def U_COMBINED_IMPLEMENTATION
    398  * Set to export library symbols from inside the ICU library
    399  * when all of ICU is in a single library.
    400  * This can be set as a compiler option while building ICU, and it
    401  * needs to be the first one tested to override U_COMMON_API, U_I18N_API, etc.
    402  * @stable ICU 2.0
    403  */
    404 
    405 /**
    406  * \def U_DATA_API
    407  * Set to export library symbols from inside the stubdata library,
    408  * and to import them from outside.
    409  * @stable ICU 3.0
    410  */
    411 
    412 /**
    413  * \def U_COMMON_API
    414  * Set to export library symbols from inside the common library,
    415  * and to import them from outside.
    416  * @stable ICU 2.0
    417  */
    418 
    419 /**
    420  * \def U_I18N_API
    421  * Set to export library symbols from inside the i18n library,
    422  * and to import them from outside.
    423  * @stable ICU 2.0
    424  */
    425 
    426 /**
    427  * \def U_LAYOUT_API
    428  * Set to export library symbols from inside the layout engine library,
    429  * and to import them from outside.
    430  * @stable ICU 2.0
    431  */
    432 
    433 /**
    434  * \def U_LAYOUTEX_API
    435  * Set to export library symbols from inside the layout extensions library,
    436  * and to import them from outside.
    437  * @stable ICU 2.6
    438  */
    439 
    440 /**
    441  * \def U_IO_API
    442  * Set to export library symbols from inside the ustdio library,
    443  * and to import them from outside.
    444  * @stable ICU 2.0
    445  */
    446 
    447 /**
    448  * \def U_TOOLUTIL_API
    449  * Set to export library symbols from inside the toolutil library,
    450  * and to import them from outside.
    451  * @stable ICU 3.4
    452  */
    453 
    454 #if defined(U_COMBINED_IMPLEMENTATION)
    455 #define U_DATA_API     U_EXPORT
    456 #define U_COMMON_API   U_EXPORT
    457 #define U_I18N_API     U_EXPORT
    458 #define U_LAYOUT_API   U_EXPORT
    459 #define U_LAYOUTEX_API U_EXPORT
    460 #define U_IO_API       U_EXPORT
    461 #define U_TOOLUTIL_API U_EXPORT
    462 #elif defined(U_STATIC_IMPLEMENTATION)
    463 #define U_DATA_API
    464 #define U_COMMON_API
    465 #define U_I18N_API
    466 #define U_LAYOUT_API
    467 #define U_LAYOUTEX_API
    468 #define U_IO_API
    469 #define U_TOOLUTIL_API
    470 #elif defined(U_COMMON_IMPLEMENTATION)
    471 #define U_DATA_API     U_IMPORT
    472 #define U_COMMON_API   U_EXPORT
    473 #define U_I18N_API     U_IMPORT
    474 #define U_LAYOUT_API   U_IMPORT
    475 #define U_LAYOUTEX_API U_IMPORT
    476 #define U_IO_API       U_IMPORT
    477 #define U_TOOLUTIL_API U_IMPORT
    478 #elif defined(U_I18N_IMPLEMENTATION)
    479 #define U_DATA_API     U_IMPORT
    480 #define U_COMMON_API   U_IMPORT
    481 #define U_I18N_API     U_EXPORT
    482 #define U_LAYOUT_API   U_IMPORT
    483 #define U_LAYOUTEX_API U_IMPORT
    484 #define U_IO_API       U_IMPORT
    485 #define U_TOOLUTIL_API U_IMPORT
    486 #elif defined(U_LAYOUT_IMPLEMENTATION)
    487 #define U_DATA_API     U_IMPORT
    488 #define U_COMMON_API   U_IMPORT
    489 #define U_I18N_API     U_IMPORT
    490 #define U_LAYOUT_API   U_EXPORT
    491 #define U_LAYOUTEX_API U_IMPORT
    492 #define U_IO_API       U_IMPORT
    493 #define U_TOOLUTIL_API U_IMPORT
    494 #elif defined(U_LAYOUTEX_IMPLEMENTATION)
    495 #define U_DATA_API     U_IMPORT
    496 #define U_COMMON_API   U_IMPORT
    497 #define U_I18N_API     U_IMPORT
    498 #define U_LAYOUT_API   U_IMPORT
    499 #define U_LAYOUTEX_API U_EXPORT
    500 #define U_IO_API       U_IMPORT
    501 #define U_TOOLUTIL_API U_IMPORT
    502 #elif defined(U_IO_IMPLEMENTATION)
    503 #define U_DATA_API     U_IMPORT
    504 #define U_COMMON_API   U_IMPORT
    505 #define U_I18N_API     U_IMPORT
    506 #define U_LAYOUT_API   U_IMPORT
    507 #define U_LAYOUTEX_API U_IMPORT
    508 #define U_IO_API       U_EXPORT
    509 #define U_TOOLUTIL_API U_IMPORT
    510 #elif defined(U_TOOLUTIL_IMPLEMENTATION)
    511 #define U_DATA_API     U_IMPORT
    512 #define U_COMMON_API   U_IMPORT
    513 #define U_I18N_API     U_IMPORT
    514 #define U_LAYOUT_API   U_IMPORT
    515 #define U_LAYOUTEX_API U_IMPORT
    516 #define U_IO_API       U_IMPORT
    517 #define U_TOOLUTIL_API U_EXPORT
    518 #else
    519 #define U_DATA_API     U_IMPORT
    520 #define U_COMMON_API   U_IMPORT
    521 #define U_I18N_API     U_IMPORT
    522 #define U_LAYOUT_API   U_IMPORT
    523 #define U_LAYOUTEX_API U_IMPORT
    524 #define U_IO_API       U_IMPORT
    525 #define U_TOOLUTIL_API U_IMPORT
    526 #endif
    527 
    528 /**
    529  * \def U_STANDARD_CPP_NAMESPACE
    530  * Control of C++ Namespace
    531  * @stable ICU 2.0
    532  */
    533 #ifdef __cplusplus
    534 #define U_STANDARD_CPP_NAMESPACE        ::
    535 #else
    536 #define U_STANDARD_CPP_NAMESPACE
    537 #endif
    538 
    539 
    540 /*===========================================================================*/
    541 /* Global delete operator                                                    */
    542 /*===========================================================================*/
    543 
    544 /*
    545  * The ICU4C library must not use the global new and delete operators.
    546  * These operators here are defined to enable testing for this.
    547  * See Jitterbug 2581 for details of why this is necessary.
    548  *
    549  * Verification that ICU4C's memory usage is correct, i.e.,
    550  * that global new/delete are not used:
    551  *
    552  * a) Check for imports of global new/delete (see uobject.cpp for details)
    553  * b) Verify that new is never imported.
    554  * c) Verify that delete is only imported from object code for interface/mixin classes.
    555  * d) Add global delete and delete[] only for the ICU4C library itself
    556  *    and define them in a way that crashes or otherwise easily shows a problem.
    557  *
    558  * The following implements d).
    559  * The operator implementations crash; this is intentional and used for library debugging.
    560  *
    561  * Note: This is currently only done on Windows because
    562  * some Linux/Unix compilers have problems with defining global new/delete.
    563  * On Windows, U_WINDOWS is defined, and it is _MSC_VER>=1200 for MSVC 6.0 and higher.
    564  */
    565 #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))
    566 
    567 #ifndef U_HIDE_INTERNAL_API
    568 /**
    569  * Global operator new, defined only inside ICU4C, must not be used.
    570  * Crashes intentionally.
    571  * @internal
    572  */
    573 inline void *
    574 operator new(size_t /*size*/) {
    575     char *q=NULL;
    576     *q=5; /* break it */
    577     return q;
    578 }
    579 
    580 #ifdef _Ret_bytecap_
    581 /* This is only needed to suppress a Visual C++ 2008 warning for operator new[]. */
    582 _Ret_bytecap_(_Size)
    583 #endif
    584 /**
    585  * Global operator new[], defined only inside ICU4C, must not be used.
    586  * Crashes intentionally.
    587  * @internal
    588  */
    589 inline void *
    590 operator new[](size_t /*size*/) {
    591     char *q=NULL;
    592     *q=5; /* break it */
    593     return q;
    594 }
    595 
    596 /**
    597  * Global operator delete, defined only inside ICU4C, must not be used.
    598  * Crashes intentionally.
    599  * @internal
    600  */
    601 inline void
    602 operator delete(void * /*p*/) {
    603     char *q=NULL;
    604     *q=5; /* break it */
    605 }
    606 
    607 /**
    608  * Global operator delete[], defined only inside ICU4C, must not be used.
    609  * Crashes intentionally.
    610  * @internal
    611  */
    612 inline void
    613 operator delete[](void * /*p*/) {
    614     char *q=NULL;
    615     *q=5; /* break it */
    616 }
    617 
    618 #endif /* U_HIDE_INTERNAL_API */
    619 #endif
    620 
    621 /*===========================================================================*/
    622 /* UErrorCode */
    623 /*===========================================================================*/
    624 
    625 /**
    626  * Error code to replace exception handling, so that the code is compatible with all C++ compilers,
    627  * and to use the same mechanism for C and C++.
    628  *
    629  * \par
    630  * ICU functions that take a reference (C++) or a pointer (C) to a UErrorCode
    631  * first test if(U_FAILURE(errorCode)) { return immediately; }
    632  * so that in a chain of such functions the first one that sets an error code
    633  * causes the following ones to not perform any operations.
    634  *
    635  * \par
    636  * Error codes should be tested using U_FAILURE() and U_SUCCESS().
    637  * @stable ICU 2.0
    638  */
    639 typedef enum UErrorCode {
    640     /* The ordering of U_ERROR_INFO_START Vs U_USING_FALLBACK_WARNING looks weird
    641      * and is that way because VC++ debugger displays first encountered constant,
    642      * which is not the what the code is used for
    643      */
    644 
    645     U_USING_FALLBACK_WARNING  = -128,   /**< A resource bundle lookup returned a fallback result (not an error) */
    646 
    647     U_ERROR_WARNING_START     = -128,   /**< Start of information results (semantically successful) */
    648 
    649     U_USING_DEFAULT_WARNING   = -127,   /**< A resource bundle lookup returned a result from the root locale (not an error) */
    650 
    651     U_SAFECLONE_ALLOCATED_WARNING = -126, /**< A SafeClone operation required allocating memory (informational only) */
    652 
    653     U_STATE_OLD_WARNING       = -125,   /**< ICU has to use compatibility layer to construct the service. Expect performance/memory usage degradation. Consider upgrading */
    654 
    655     U_STRING_NOT_TERMINATED_WARNING = -124,/**< An output string could not be NUL-terminated because output length==destCapacity. */
    656 
    657     U_SORT_KEY_TOO_SHORT_WARNING = -123, /**< Number of levels requested in getBound is higher than the number of levels in the sort key */
    658 
    659     U_AMBIGUOUS_ALIAS_WARNING = -122,   /**< This converter alias can go to different converter implementations */
    660 
    661     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 */
    662 
    663     U_PLUGIN_CHANGED_LEVEL_WARNING = -120, /**< A plugin caused a level change. May not be an error, but later plugins may not load. */
    664 
    665     U_ERROR_WARNING_LIMIT,              /**< This must always be the last warning value to indicate the limit for UErrorCode warnings (last warning code +1) */
    666 
    667 
    668     U_ZERO_ERROR              =  0,     /**< No error, no warning. */
    669 
    670     U_ILLEGAL_ARGUMENT_ERROR  =  1,     /**< Start of codes indicating failure */
    671     U_MISSING_RESOURCE_ERROR  =  2,     /**< The requested resource cannot be found */
    672     U_INVALID_FORMAT_ERROR    =  3,     /**< Data format is not what is expected */
    673     U_FILE_ACCESS_ERROR       =  4,     /**< The requested file cannot be found */
    674     U_INTERNAL_PROGRAM_ERROR  =  5,     /**< Indicates a bug in the library code */
    675     U_MESSAGE_PARSE_ERROR     =  6,     /**< Unable to parse a message (message format) */
    676     U_MEMORY_ALLOCATION_ERROR =  7,     /**< Memory allocation error */
    677     U_INDEX_OUTOFBOUNDS_ERROR =  8,     /**< Trying to access the index that is out of bounds */
    678     U_PARSE_ERROR             =  9,     /**< Equivalent to Java ParseException */
    679     U_INVALID_CHAR_FOUND      = 10,     /**< Character conversion: Unmappable input sequence. In other APIs: Invalid character. */
    680     U_TRUNCATED_CHAR_FOUND    = 11,     /**< Character conversion: Incomplete input sequence. */
    681     U_ILLEGAL_CHAR_FOUND      = 12,     /**< Character conversion: Illegal input sequence/combination of input units. */
    682     U_INVALID_TABLE_FORMAT    = 13,     /**< Conversion table file found, but corrupted */
    683     U_INVALID_TABLE_FILE      = 14,     /**< Conversion table file not found */
    684     U_BUFFER_OVERFLOW_ERROR   = 15,     /**< A result would not fit in the supplied buffer */
    685     U_UNSUPPORTED_ERROR       = 16,     /**< Requested operation not supported in current context */
    686     U_RESOURCE_TYPE_MISMATCH  = 17,     /**< an operation is requested over a resource that does not support it */
    687     U_ILLEGAL_ESCAPE_SEQUENCE = 18,     /**< ISO-2022 illlegal escape sequence */
    688     U_UNSUPPORTED_ESCAPE_SEQUENCE = 19, /**< ISO-2022 unsupported escape sequence */
    689     U_NO_SPACE_AVAILABLE      = 20,     /**< No space available for in-buffer expansion for Arabic shaping */
    690     U_CE_NOT_FOUND_ERROR      = 21,     /**< Currently used only while setting variable top, but can be used generally */
    691     U_PRIMARY_TOO_LONG_ERROR  = 22,     /**< User tried to set variable top to a primary that is longer than two bytes */
    692     U_STATE_TOO_OLD_ERROR     = 23,     /**< ICU cannot construct a service from this state, as it is no longer supported */
    693     U_TOO_MANY_ALIASES_ERROR  = 24,     /**< There are too many aliases in the path to the requested resource.
    694                                              It is very possible that a circular alias definition has occured */
    695     U_ENUM_OUT_OF_SYNC_ERROR  = 25,     /**< UEnumeration out of sync with underlying collection */
    696     U_INVARIANT_CONVERSION_ERROR = 26,  /**< Unable to convert a UChar* string to char* with the invariant converter. */
    697     U_INVALID_STATE_ERROR     = 27,     /**< Requested operation can not be completed with ICU in its current state */
    698     U_COLLATOR_VERSION_MISMATCH = 28,   /**< Collator version is not compatible with the base version */
    699     U_USELESS_COLLATOR_ERROR  = 29,     /**< Collator is options only and no base is specified */
    700     U_NO_WRITE_PERMISSION     = 30,     /**< Attempt to modify read-only or constant data. */
    701 
    702     U_STANDARD_ERROR_LIMIT,             /**< This must always be the last value to indicate the limit for standard errors */
    703     /*
    704      * the error code range 0x10000 0x10100 are reserved for Transliterator
    705      */
    706     U_BAD_VARIABLE_DEFINITION=0x10000,/**< Missing '$' or duplicate variable name */
    707     U_PARSE_ERROR_START = 0x10000,    /**< Start of Transliterator errors */
    708     U_MALFORMED_RULE,                 /**< Elements of a rule are misplaced */
    709     U_MALFORMED_SET,                  /**< A UnicodeSet pattern is invalid*/
    710     U_MALFORMED_SYMBOL_REFERENCE,     /**< UNUSED as of ICU 2.4 */
    711     U_MALFORMED_UNICODE_ESCAPE,       /**< A Unicode escape pattern is invalid*/
    712     U_MALFORMED_VARIABLE_DEFINITION,  /**< A variable definition is invalid */
    713     U_MALFORMED_VARIABLE_REFERENCE,   /**< A variable reference is invalid */
    714     U_MISMATCHED_SEGMENT_DELIMITERS,  /**< UNUSED as of ICU 2.4 */
    715     U_MISPLACED_ANCHOR_START,         /**< A start anchor appears at an illegal position */
    716     U_MISPLACED_CURSOR_OFFSET,        /**< A cursor offset occurs at an illegal position */
    717     U_MISPLACED_QUANTIFIER,           /**< A quantifier appears after a segment close delimiter */
    718     U_MISSING_OPERATOR,               /**< A rule contains no operator */
    719     U_MISSING_SEGMENT_CLOSE,          /**< UNUSED as of ICU 2.4 */
    720     U_MULTIPLE_ANTE_CONTEXTS,         /**< More than one ante context */
    721     U_MULTIPLE_CURSORS,               /**< More than one cursor */
    722     U_MULTIPLE_POST_CONTEXTS,         /**< More than one post context */
    723     U_TRAILING_BACKSLASH,             /**< A dangling backslash */
    724     U_UNDEFINED_SEGMENT_REFERENCE,    /**< A segment reference does not correspond to a defined segment */
    725     U_UNDEFINED_VARIABLE,             /**< A variable reference does not correspond to a defined variable */
    726     U_UNQUOTED_SPECIAL,               /**< A special character was not quoted or escaped */
    727     U_UNTERMINATED_QUOTE,             /**< A closing single quote is missing */
    728     U_RULE_MASK_ERROR,                /**< A rule is hidden by an earlier more general rule */
    729     U_MISPLACED_COMPOUND_FILTER,      /**< A compound filter is in an invalid location */
    730     U_MULTIPLE_COMPOUND_FILTERS,      /**< More than one compound filter */
    731     U_INVALID_RBT_SYNTAX,             /**< A "::id" rule was passed to the RuleBasedTransliterator parser */
    732     U_INVALID_PROPERTY_PATTERN,       /**< UNUSED as of ICU 2.4 */
    733     U_MALFORMED_PRAGMA,               /**< A 'use' pragma is invlalid */
    734     U_UNCLOSED_SEGMENT,               /**< A closing ')' is missing */
    735     U_ILLEGAL_CHAR_IN_SEGMENT,        /**< UNUSED as of ICU 2.4 */
    736     U_VARIABLE_RANGE_EXHAUSTED,       /**< Too many stand-ins generated for the given variable range */
    737     U_VARIABLE_RANGE_OVERLAP,         /**< The variable range overlaps characters used in rules */
    738     U_ILLEGAL_CHARACTER,              /**< A special character is outside its allowed context */
    739     U_INTERNAL_TRANSLITERATOR_ERROR,  /**< Internal transliterator system error */
    740     U_INVALID_ID,                     /**< A "::id" rule specifies an unknown transliterator */
    741     U_INVALID_FUNCTION,               /**< A "&fn()" rule specifies an unknown transliterator */
    742     U_PARSE_ERROR_LIMIT,              /**< The limit for Transliterator errors */
    743 
    744     /*
    745      * the error code range 0x10100 0x10200 are reserved for formatting API parsing error
    746      */
    747     U_UNEXPECTED_TOKEN=0x10100,       /**< Syntax error in format pattern */
    748     U_FMT_PARSE_ERROR_START=0x10100,  /**< Start of format library errors */
    749     U_MULTIPLE_DECIMAL_SEPARATORS,    /**< More than one decimal separator in number pattern */
    750     U_MULTIPLE_DECIMAL_SEPERATORS = U_MULTIPLE_DECIMAL_SEPARATORS, /**< Typo: kept for backward compatibility. Use U_MULTIPLE_DECIMAL_SEPARATORS */
    751     U_MULTIPLE_EXPONENTIAL_SYMBOLS,   /**< More than one exponent symbol in number pattern */
    752     U_MALFORMED_EXPONENTIAL_PATTERN,  /**< Grouping symbol in exponent pattern */
    753     U_MULTIPLE_PERCENT_SYMBOLS,       /**< More than one percent symbol in number pattern */
    754     U_MULTIPLE_PERMILL_SYMBOLS,       /**< More than one permill symbol in number pattern */
    755     U_MULTIPLE_PAD_SPECIFIERS,        /**< More than one pad symbol in number pattern */
    756     U_PATTERN_SYNTAX_ERROR,           /**< Syntax error in format pattern */
    757     U_ILLEGAL_PAD_POSITION,           /**< Pad symbol misplaced in number pattern */
    758     U_UNMATCHED_BRACES,               /**< Braces do not match in message pattern */
    759     U_UNSUPPORTED_PROPERTY,           /**< UNUSED as of ICU 2.4 */
    760     U_UNSUPPORTED_ATTRIBUTE,          /**< UNUSED as of ICU 2.4 */
    761     U_ARGUMENT_TYPE_MISMATCH,         /**< Argument name and argument index mismatch in MessageFormat functions */
    762     U_DUPLICATE_KEYWORD,              /**< Duplicate keyword in PluralFormat */
    763     U_UNDEFINED_KEYWORD,              /**< Undefined Plural keyword */
    764     U_DEFAULT_KEYWORD_MISSING,        /**< Missing DEFAULT rule in plural rules */
    765     U_DECIMAL_NUMBER_SYNTAX_ERROR,    /**< Decimal number syntax error */
    766     U_FORMAT_INEXACT_ERROR,           /**< Cannot format a number exactly and rounding mode is ROUND_UNNECESSARY @draft ICU 4.8 */
    767     U_FMT_PARSE_ERROR_LIMIT,          /**< The limit for format library errors */
    768 
    769     /*
    770      * the error code range 0x10200 0x102ff are reserved for Break Iterator related error
    771      */
    772     U_BRK_INTERNAL_ERROR=0x10200,          /**< An internal error (bug) was detected.             */
    773     U_BRK_ERROR_START=0x10200,             /**< Start of codes indicating Break Iterator failures */
    774     U_BRK_HEX_DIGITS_EXPECTED,             /**< Hex digits expected as part of a escaped char in a rule. */
    775     U_BRK_SEMICOLON_EXPECTED,              /**< Missing ';' at the end of a RBBI rule.            */
    776     U_BRK_RULE_SYNTAX,                     /**< Syntax error in RBBI rule.                        */
    777     U_BRK_UNCLOSED_SET,                    /**< UnicodeSet witing an RBBI rule missing a closing ']'.  */
    778     U_BRK_ASSIGN_ERROR,                    /**< Syntax error in RBBI rule assignment statement.   */
    779     U_BRK_VARIABLE_REDFINITION,            /**< RBBI rule $Variable redefined.                    */
    780     U_BRK_MISMATCHED_PAREN,                /**< Mis-matched parentheses in an RBBI rule.          */
    781     U_BRK_NEW_LINE_IN_QUOTED_STRING,       /**< Missing closing quote in an RBBI rule.            */
    782     U_BRK_UNDEFINED_VARIABLE,              /**< Use of an undefined $Variable in an RBBI rule.    */
    783     U_BRK_INIT_ERROR,                      /**< Initialization failure.  Probable missing ICU Data. */
    784     U_BRK_RULE_EMPTY_SET,                  /**< Rule contains an empty Unicode Set.               */
    785     U_BRK_UNRECOGNIZED_OPTION,             /**< !!option in RBBI rules not recognized.            */
    786     U_BRK_MALFORMED_RULE_TAG,              /**< The {nnn} tag on a rule is mal formed             */
    787     U_BRK_ERROR_LIMIT,                     /**< This must always be the last value to indicate the limit for Break Iterator failures */
    788 
    789     /*
    790      * The error codes in the range 0x10300-0x103ff are reserved for regular expression related errrs
    791      */
    792     U_REGEX_INTERNAL_ERROR=0x10300,       /**< An internal error (bug) was detected.              */
    793     U_REGEX_ERROR_START=0x10300,          /**< Start of codes indicating Regexp failures          */
    794     U_REGEX_RULE_SYNTAX,                  /**< Syntax error in regexp pattern.                    */
    795     U_REGEX_INVALID_STATE,                /**< RegexMatcher in invalid state for requested operation */
    796     U_REGEX_BAD_ESCAPE_SEQUENCE,          /**< Unrecognized backslash escape sequence in pattern  */
    797     U_REGEX_PROPERTY_SYNTAX,              /**< Incorrect Unicode property                         */
    798     U_REGEX_UNIMPLEMENTED,                /**< Use of regexp feature that is not yet implemented. */
    799     U_REGEX_MISMATCHED_PAREN,             /**< Incorrectly nested parentheses in regexp pattern.  */
    800     U_REGEX_NUMBER_TOO_BIG,               /**< Decimal number is too large.                       */
    801     U_REGEX_BAD_INTERVAL,                 /**< Error in {min,max} interval                        */
    802     U_REGEX_MAX_LT_MIN,                   /**< In {min,max}, max is less than min.                */
    803     U_REGEX_INVALID_BACK_REF,             /**< Back-reference to a non-existent capture group.    */
    804     U_REGEX_INVALID_FLAG,                 /**< Invalid value for match mode flags.                */
    805     U_REGEX_LOOK_BEHIND_LIMIT,            /**< Look-Behind pattern matches must have a bounded maximum length.    */
    806     U_REGEX_SET_CONTAINS_STRING,          /**< Regexps cannot have UnicodeSets containing strings.*/
    807     U_REGEX_OCTAL_TOO_BIG,                /**< Octal character constants must be <= 0377.         */
    808     U_REGEX_MISSING_CLOSE_BRACKET,        /**< Missing closing bracket on a bracket expression.   */
    809     U_REGEX_INVALID_RANGE,                /**< In a character range [x-y], x is greater than y.   */
    810     U_REGEX_STACK_OVERFLOW,               /**< Regular expression backtrack stack overflow.       */
    811     U_REGEX_TIME_OUT,                     /**< Maximum allowed match time exceeded                */
    812     U_REGEX_STOPPED_BY_CALLER,            /**< Matching operation aborted by user callback fn.    */
    813     U_REGEX_ERROR_LIMIT,                  /**< This must always be the last value to indicate the limit for regexp errors */
    814 
    815     /*
    816      * The error code in the range 0x10400-0x104ff are reserved for IDNA related error codes
    817      */
    818     U_IDNA_PROHIBITED_ERROR=0x10400,
    819     U_IDNA_ERROR_START=0x10400,
    820     U_IDNA_UNASSIGNED_ERROR,
    821     U_IDNA_CHECK_BIDI_ERROR,
    822     U_IDNA_STD3_ASCII_RULES_ERROR,
    823     U_IDNA_ACE_PREFIX_ERROR,
    824     U_IDNA_VERIFICATION_ERROR,
    825     U_IDNA_LABEL_TOO_LONG_ERROR,
    826     U_IDNA_ZERO_LENGTH_LABEL_ERROR,
    827     U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR,
    828     U_IDNA_ERROR_LIMIT,
    829     /*
    830      * Aliases for StringPrep
    831      */
    832     U_STRINGPREP_PROHIBITED_ERROR = U_IDNA_PROHIBITED_ERROR,
    833     U_STRINGPREP_UNASSIGNED_ERROR = U_IDNA_UNASSIGNED_ERROR,
    834     U_STRINGPREP_CHECK_BIDI_ERROR = U_IDNA_CHECK_BIDI_ERROR,
    835 
    836     /*
    837      * The error code in the range 0x10500-0x105ff are reserved for Plugin related error codes
    838      */
    839     U_PLUGIN_ERROR_START=0x10500,         /**< Start of codes indicating plugin failures */
    840     U_PLUGIN_TOO_HIGH=0x10500,            /**< The plugin's level is too high to be loaded right now. */
    841     U_PLUGIN_DIDNT_SET_LEVEL,             /**< The plugin didn't call uplug_setPlugLevel in response to a QUERY */
    842     U_PLUGIN_ERROR_LIMIT,                 /**< This must always be the last value to indicate the limit for plugin errors */
    843 
    844     U_ERROR_LIMIT=U_PLUGIN_ERROR_LIMIT      /**< This must always be the last value to indicate the limit for UErrorCode (last error code +1) */
    845 } UErrorCode;
    846 
    847 /* Use the following to determine if an UErrorCode represents */
    848 /* operational success or failure. */
    849 
    850 #ifdef XP_CPLUSPLUS
    851     /**
    852      * Does the error code indicate success?
    853      * @stable ICU 2.0
    854      */
    855     static
    856     inline UBool U_SUCCESS(UErrorCode code) { return (UBool)(code<=U_ZERO_ERROR); }
    857     /**
    858      * Does the error code indicate a failure?
    859      * @stable ICU 2.0
    860      */
    861     static
    862     inline UBool U_FAILURE(UErrorCode code) { return (UBool)(code>U_ZERO_ERROR); }
    863 #else
    864     /**
    865      * Does the error code indicate success?
    866      * @stable ICU 2.0
    867      */
    868 #   define U_SUCCESS(x) ((x)<=U_ZERO_ERROR)
    869     /**
    870      * Does the error code indicate a failure?
    871      * @stable ICU 2.0
    872      */
    873 #   define U_FAILURE(x) ((x)>U_ZERO_ERROR)
    874 #endif
    875 
    876 /**
    877  * Return a string for a UErrorCode value.
    878  * The string will be the same as the name of the error code constant
    879  * in the UErrorCode enum above.
    880  * @stable ICU 2.0
    881  */
    882 U_STABLE const char * U_EXPORT2
    883 u_errorName(UErrorCode code);
    884 
    885 
    886 #endif /* _UTYPES */
    887