reactos/lib/msvcrt/mbstring/mbsupr.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS system libraries
   4  * FILE:        lib/msvcrt/mbstring/mbsupr.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 unsigned int _mbctoupper(unsigned int c)
  25 {
  26
  27         if ((c & 0xFF00) != 0) {
  28 // true multibyte case conversion needed
  29         if ( _ismbcupper(c) )
  30                 return c + CASE_DIFF;
  31
  32         } else
  33                 return _mbbtoupper(c);
  34
  35         return 0;
  36 }
  37
  38 unsigned char * _mbsupr(unsigned char *x)
  39 {
  40         unsigned char  *y=x;
  41         while (*y) {
  42                 if (!_ismbblead(*y) )
  43                         *y = toupper(*y);
  44                 else {
  45                         *y=_mbctoupper(*(unsigned short *)y);
  46                         y++;
  47                 }
  48         }
  49         return x;
  50 }
  51