compiler/stdc/strupr.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     C function strupr().
   6 */
   7
   8 /*****************************************************************************
   9
  10     NAME */
  11 #include <string.h>
  12
  13         char * strupr (
  14
  15 /*  SYNOPSIS */
  16         char * str)
  17
  18 /*  FUNCTION
  19
  20         Converts a string to all upper case characters. Modifies
  21         the given string.
  22
  23     INPUTS
  24         str - The string to convert.
  25
  26     RESULT
  27         The same string buffer is passed back with all characters converted.
  28
  29     NOTES
  30
  31     EXAMPLE
  32
  33     BUGS
  34
  35     SEE ALSO
  36
  37     INTERNALS
  38
  39 ******************************************************************************/
  40 {
  41         unsigned int i = 0;
  42         while (str[i]) {
  43                 if (str[i] >= 'a' && str[i] <= 'z')
  44                         str[i] += ('A'-'a');
  45                 i++;
  46         }
  47
  48         return str;
  49 } /* strupr */