annotate demo/counter.ur @ 1619:15e0c935c91b

Catching integer divisions by zero
author Adam Chlipala <adam@chlipala.net>
date Sat, 03 Dec 2011 09:44:07 -0500
parents 4359e185d3af
children
rev   line source
adam@1301 1 (* Workhorse function, which [main] will call *)
adamc@416 2 fun counter n = return <xml><body>
adamc@416 3 Current counter: {[n]}<br/>
adamc@416 4 <a link={counter (n + 1)}>Increment</a><br/>
adamc@416 5 <a link={counter (n - 1)}>Decrement</a>
adamc@416 6 </body></xml>
adamc@416 7
adamc@416 8 fun main () = counter 0