michael@0: var globalinc = 0;
michael@0: function testincops(n) {
michael@0:   var i = 0, o = {p:0}, a = [0];
michael@0:   n = 100;
michael@0: 
michael@0:   for (i = 0; i < n; i++);
michael@0:   while (i-- > 0);
michael@0:   for (i = 0; i < n; ++i);
michael@0:   while (--i >= 0);
michael@0: 
michael@0:   for (o.p = 0; o.p < n; o.p++) globalinc++;
michael@0:   while (o.p-- > 0) --globalinc;
michael@0:   for (o.p = 0; o.p < n; ++o.p) ++globalinc;
michael@0:   while (--o.p >= 0) globalinc--;
michael@0: 
michael@0:   ++i; // set to 0
michael@0:   for (a[i] = 0; a[i] < n; a[i]++);
michael@0:   while (a[i]-- > 0);
michael@0:   for (a[i] = 0; a[i] < n; ++a[i]);
michael@0:   while (--a[i] >= 0);
michael@0: 
michael@0:   return [++o.p, ++a[i], globalinc].toString();
michael@0: }
michael@0: assertEq(testincops(), "0,0,0");