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  1. /****************************************************************************
  2. *
  3. *                            Open Watcom Project
  4. *
  5. *    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
  6. *
  7. *  ========================================================================
  8. *
  9. *    This file contains Original Code and/or Modifications of Original
  10. *    Code as defined in and that are subject to the Sybase Open Watcom
  11. *    Public License version 1.0 (the 'License'). You may not use this file
  12. *    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
  13. *    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
  14. *    provided with the Original Code and Modifications, and is also
  15. *    available at www.sybase.com/developer/opensource.
  16. *
  17. *    The Original Code and all software distributed under the License are
  18. *    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  19. *    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
  20. *    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
  21. *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
  22. *    NON-INFRINGEMENT. Please see the License for the specific language
  23. *    governing rights and limitations under the License.
  24. *
  25. *  ========================================================================
  26. *
  27. * Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
  28. *               DESCRIBE IT HERE!
  29. *
  30. ****************************************************************************/
  31.  
  32.  
  33. #include "variety.h"
  34. #include <ctype.h>
  35. #include <string.h>
  36.  
  37. /* return <0 if s<t, 0 if s==t, >0 if s>t */
  38.  
  39. _WCRTLINK int _fstrnicmp( const char _WCFAR *s, const char _WCFAR *t, size_t n )
  40.     {
  41.         unsigned char c1;
  42.         unsigned char c2;
  43.  
  44.         for(;;) {
  45.             if( n == 0 )     return( 0 );       /* equal */
  46.             c1 = *s;
  47.             if( c1 >= 'A'  &&  c1 <= 'Z' )  c1 += 'a' - 'A';
  48.             c2 = *t;
  49.             if( c2 >= 'A'  &&  c2 <= 'Z' )  c2 += 'a' - 'A';
  50.             if( c1 != c2 )   return( c1 - c2 ); /* less than or greater than */
  51.             if( c1 == '\0' ) return( 0 );       /* equal */
  52.             ++s;
  53.             ++t;
  54.             --n;
  55.         }
  56.     }
  57.