michael@0: function map_test(t, cases)
michael@0: {
michael@0:   for (var i = 0; i < cases.length; i++) {
michael@0:     function c() { return t(cases[i].input); }
michael@0:     var expected = cases[i].expected;
michael@0:     assertEq(c(), expected);
michael@0:   }
michael@0: }
michael@0: 
michael@0: function lsh_inner(n)
michael@0: {
michael@0:   var r;
michael@0:   for (var i = 0; i < 35; i++)
michael@0:     r = 0x1 << n;
michael@0:   return r;
michael@0: }
michael@0: map_test (lsh_inner,
michael@0:           [{input: 15, expected: 32768},
michael@0:            {input: 55, expected: 8388608},
michael@0:            {input: 1,  expected: 2},
michael@0:            {input: 0,  expected: 1}]);
michael@0: 
michael@0: function rsh_inner(n)
michael@0: {
michael@0:   var r;
michael@0:   for (var i = 0; i < 35; i++)
michael@0:     r = 0x11010101 >> n;
michael@0:   return r;
michael@0: }
michael@0: map_test (rsh_inner,
michael@0:           [{input: 8,  expected: 1114369},
michael@0:            {input: 5,  expected: 8914952},
michael@0:            {input: 35, expected: 35659808},
michael@0:            {input: -1, expected: 0}]);
michael@0: 
michael@0: function ursh_inner(n)
michael@0: {
michael@0:   var r;
michael@0:   for (var i = 0; i < 35; i++)
michael@0:     r = -55 >>> n;
michael@0:   return r;
michael@0: }
michael@0: map_test (ursh_inner,
michael@0:           [{input: 8,  expected: 16777215},
michael@0:            {input: 33, expected: 2147483620},
michael@0:            {input: 0,  expected: 4294967241},
michael@0:            {input: 1,  expected: 2147483620}]);
michael@0: 
michael@0: function doMath_inner(cos)
michael@0: {
michael@0:     var s = 0;
michael@0:     var sin = Math.sin;
michael@0:     for (var i = 0; i < 200; i++)
michael@0:         s = -Math.pow(sin(i) + cos(i * 0.75), 4);
michael@0:     return s;
michael@0: }
michael@0: function doMath() {
michael@0:   return doMath_inner(Math.cos);
michael@0: }
michael@0: assertEq(doMath(), -0.5405549555611059);