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Changes to src/utf.c.

     8      8   **    May you find forgiveness for yourself and forgive others.
     9      9   **    May you share freely, never taking more than you give.
    10     10   **
    11     11   *************************************************************************
    12     12   ** This file contains routines used to translate between UTF-8, 
    13     13   ** UTF-16, UTF-16BE, and UTF-16LE.
    14     14   **
    15         -** $Id: utf.c,v 1.34 2005/12/15 03:04:11 drh Exp $
           15  +** $Id: utf.c,v 1.35 2005/12/15 22:34:01 drh Exp $
    16     16   **
    17     17   ** Notes on UTF-8:
    18     18   **
    19     19   **   Byte-0    Byte-1    Byte-2    Byte-3    Value
    20     20   **  0xxxxxxx                                 00000000 00000000 0xxxxxxx
    21     21   **  110yyyyy  10xxxxxx                       00000000 00000yyy yyxxxxxx
    22     22   **  1110zzzz  10yyyyyy  10xxxxxx             00000000 zzzzyyyy yyxxxxxx
................................................................................
   458    458   ** NULL is returned if there is an allocation error.
   459    459   */
   460    460   char *sqlite3utf16to8(const void *z, int nByte){
   461    461     Mem m;
   462    462     memset(&m, 0, sizeof(m));
   463    463     sqlite3VdbeMemSetStr(&m, z, nByte, SQLITE_UTF16NATIVE, SQLITE_STATIC);
   464    464     sqlite3VdbeChangeEncoding(&m, SQLITE_UTF8);
   465         -  return m.z;
          465  +  assert( m.flags & MEM_Term );
          466  +  assert( m.flags & MEM_Str );
          467  +  return (m.flags & MEM_Dyn)!=0 ? m.z : sqlite3StrDup(m.z);
   466    468   }
   467    469   
   468    470   /*
   469    471   ** pZ is a UTF-16 encoded unicode string. If nChar is less than zero,
   470    472   ** return the number of bytes up to (but not including), the first pair
   471    473   ** of consecutive 0x00 bytes in pZ. If nChar is not less than zero,
   472    474   ** then return the number of bytes in the first nChar unicode characters