\ -*- mode: forth -*-
\ $Id: except.bigforth,v 1.1 2001/06/20 19:04:07 doug Exp $
\ http://www.bagley.org/~doug/shootout/
\ from Anton Ertl

\ read NUM from last command line argument
0. argc @ 1- arg >number 2drop drop constant NUM

1 constant *hi*
2 constant *lo*

variable lo
variable hi

: blowup 
    1 and if
        *lo* throw
    else
        *hi* throw
    then ;

: lo-function 
    ['] blowup catch           
    dup *lo* <> tuck and throw 
    1+ lo +! ;

: hi-function 
    ['] lo-function catch      
    dup *hi* <> tuck and throw 
    1+ hi +! ;

: some-function 
    ['] hi-function catch abort" We shouldn't get here" ;

: main 
    NUM 0 ?do
        i some-function drop
        loop
    ." Exceptions: HI=" hi ? ." / LO=" lo @ 1 u.r cr ;

main bye