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authorGravatar Adam Chlipala <adam@chlipala.net>2011-12-03 09:44:07 -0500
committerGravatar Adam Chlipala <adam@chlipala.net>2011-12-03 09:44:07 -0500
commit0f14aa67e5446391904c6a4d2ee7b4f00b803158 (patch)
tree55e7ce9758b2233896d59392e6b86614abab533a /tests/div.ur
parentfa906ca9e2e31d809221badd35ba1e93eaf3a8e5 (diff)
Catching integer divisions by zero
Diffstat (limited to 'tests/div.ur')
-rw-r--r--tests/div.ur43
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/div.ur b/tests/div.ur
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+functor Make(M : sig
+ type t
+ val read_t : read t
+ val show_t : show t
+ val num_t : num t
+ end) = struct
+ fun calculate (n1, n2) = return <xml><body>
+ {[readError n1 / readError n2 : M.t]}<br/>
+ {[readError n1 % readError n2 : M.t]}<br/>
+ </body></xml>
+
+ fun main () =
+ s1 <- source "";
+ s2 <- source "";
+ s3 <- source "";
+ s4 <- source "";
+ return <xml><body>
+ <h1>Client-side</h1>
+
+ <ctextbox source={s1}/> / <ctextbox source={s2}/>
+ <button value="=" onclick={n1 <- get s1;
+ n2 <- get s2;
+ set s3 (show (readError n1 / readError n2 : M.t));
+ set s4 (show (readError n1 % readError n2 : M.t))}/>
+ <dyn signal={n <- signal s3; return (txt n)}/>,
+ <dyn signal={n <- signal s4; return (txt n)}/>
+
+ <h1>Server-side</h1>
+
+ <form>
+ <textbox{#1}/> / <textbox{#2}/>
+ <submit value="=" action={calculate}/>
+ </form>
+ </body></xml>
+end
+
+structure Int = Make(struct type t = int end)
+structure Float = Make(struct type t = float end)
+
+fun main () : transaction page = return <xml><body>
+ <li><a link={Int.main ()}>Int</a></li>
+ <li><a link={Float.main ()}>Float</a></li>
+</body></xml>