lib/crtdll/mbstring/mbsupr.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS system libraries
   4  * FILE:        lib/crtdll/mbstring/mbsncmp.c
   5  * PURPOSE:
   6  * PROGRAMER:   Boudewijn Dekker
   7  * UPDATE HISTORY:
   8  *              12/04/99: Created
   9  */
  10 #include <msvcrt/mbstring.h>
  11 #include <msvcrt/ctype.h>
  12
  13 unsigned int _mbbtoupper(unsigned int c)
  14 {
  15         if (!_ismbblead(c) )
  16                 return toupper(c);
  17
  18         return c;
  19 }
  20
  21 // codepage 952
  22 #define CASE_DIFF (0x8281 - 0x8260)
  23
  24 /*
  25  * @implemented
  26  */
  27 unsigned int _mbctoupper(unsigned int c)
  28 {
  29
  30         if ((c & 0xFF00) != 0) {
  31 // true multibyte case conversion needed
  32         if ( _ismbcupper(c) )
  33                 return c + CASE_DIFF;
  34
  35         } else
  36                 return _mbbtoupper(c);
  37
  38         return 0;
  39 }
  40
  41 /*
  42  * @implemented
  43  */
  44 unsigned char * _mbsupr(unsigned char *x)
  45 {
  46         unsigned char  *y=x;
  47         while (*y) {
  48                 if (!_ismbblead(*y) )
  49                         *y = toupper(*y);
  50                 else {
  51                         *y=_mbctoupper(*(unsigned short *)y);
  52                         y++;
  53                 }
  54         }
  55         return x;
  56 }