quakeforge/tools/qfcc/test/gcd.pas

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program example (input, output);
var x, y: integer;
procedure printf (format:string; ...) := #0;
function gcd (a, b: integer): integer;
var c: quaternion;
begin
if b = 0 then gcd := a
else gcd := gcd (b, a mod b)
end;
begin
x := 130;
y := 120;
printf ("%d\n", gcd (x, y))
end.