strupr()                Convert String to Uppercase

 #include   <string.h>                   Required for declarations only

 char       *strupr(string);
 char       *string;                     String to be capitalized

    strupr() converts all lowercase letters in 'string' to uppercase.
    Other characters are not affected.

       Returns:     A pointer to the converted string.  There is no error
                    return.

   -------------------------------- Example ---------------------------------

    The following statements convert all lowercase letters to uppercase
    before printing the string.

           #include <string.h>
           #include <stdio.h>

           char *string = "convert this string to uppercase";
           char *strptr;

           main()
           {
                strptr = strupr(string);
                printf("%s",strptr);
           }