testincops.js - mozsearch

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var globalinc = 0;

function testincops(n) {

  var i = 0, o = {p:0}, a = [0];

  n = 100;

  for (i = 0; i < n; i++);

  while (i-- > 0);

  for (i = 0; i < n; ++i);

  while (--i >= 0);

  for (o.p = 0; o.p < n; o.p++) globalinc++;

  while (o.p-- > 0) --globalinc;

  for (o.p = 0; o.p < n; ++o.p) ++globalinc;

  while (--o.p >= 0) globalinc--;

  ++i; // set to 0

  for (a[i] = 0; a[i] < n; a[i]++);

  while (a[i]-- > 0);

  for (a[i] = 0; a[i] < n; ++a[i]);

  while (--a[i] >= 0);

  return [++o.p, ++a[i], globalinc].toString();

assertEq(testincops(), "0,0,0");