43 lines
843 B
Text
43 lines
843 B
Text
|
|
node current (c : bool; x : int on c) returns ( y : int )
|
|
let
|
|
y = merge c (true -> x) (false -> 0 fby y whenot c)
|
|
tel
|
|
|
|
node internal_current (c : bool; x : int on c) returns ( y : int on c)
|
|
var x_cur : int;
|
|
let
|
|
x_cur = merge c (true -> x) (false -> 0 fby x_cur whenot c);
|
|
y = x_cur when c
|
|
tel
|
|
|
|
node use_current (c : bool; x : int) returns (b : bool on c; y : int on c)
|
|
var x_cur, y2 :int;
|
|
let
|
|
x_cur = current(c,x);
|
|
y = x_cur when c;
|
|
y2 = internal_current(c,x);
|
|
b = y = y2;
|
|
tel
|
|
|
|
node prod() returns (y:int;b:bool)
|
|
var x,y':int;c,b':bool;
|
|
let
|
|
x = 0 fby x + 1;
|
|
c = (x % 10) = 0;
|
|
(b',y') = use_current(c,x when c);
|
|
y = current(c,y');
|
|
b = merge c b' (true fby b whenot c);
|
|
tel
|
|
|
|
(* CHECK check *)
|
|
node check() returns (b:bool)
|
|
var y:int;
|
|
let
|
|
(y,b) = prod()
|
|
tel
|
|
|
|
node main() returns (y:int;b:bool)
|
|
let
|
|
(y,b) = prod()
|
|
tel
|