shithub: libmujs

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Implement Math.round according to the (stupid) specification.

Thanks to nsz for pointing out this implementation.

--- a/jsmath.c

+++ b/jsmath.c

@@ -64,7 +64,12 @@

 static void Math_round(js_State *J)

 {

-	js_pushnumber(J, round(js_tonumber(J, 1)));

+	double x = js_tonumber(J, 1);

+	double r = round(x);

+	if (r - x == -0.5)

+		js_pushnumber(J, x == -0.5 ? -0.0 : r + 1.0);

+	else

+		js_pushnumber(J, r);

 }

 static void Math_sin(js_State *J)