Example: toupper

The following example converts all characters in character_set to uppercase.

     char character_set[] = {'a', '5', '$', 'z'};
     int i;
     for( i=0; i<4; i++ )
          lr_output_message("%c ", toupper(character_set[i]));

Example: Output:
Action.c(7): A
Action.c(7): 5 
Action.c(7): $ 
Action.c(7): Z