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// Bug 1073910
(function() {
function roundf(y) {
return Math.round(Math.fround(y));
}
var x = -1;
assertEq(roundf(x), x);
assertEq(roundf(x), x);
var x = -2;
assertEq(roundf(x), x);
assertEq(roundf(x), x);
var x = -1024;
assertEq(roundf(x), x);
var x = -14680050;
assertEq(roundf(x), Math.fround(x));
var x = -8388610;
assertEq(roundf(x), Math.fround(x));
})();
// Bug 1000606
(function() {
function f() {
var d = Math.fround(0.4999999701976776);
return Math.round(d);
}
assertEq(f(), f());
function g() {
var c = Math.fround(8886111);
return Math.round(c);
}
assertEq(g(), g());
})();
// Bug 1124485
(function() {
function h(x) {
var y = Math.fround(x);
assertEq(y, Math.pow(y, 1));
}
h(0);
h(2147483647);
})();
// Bug 1122344
(function() {
function f() {
return Math.round(Math.fround(-13527757));
};
assertEq(f(), f());
})();
(function() {
// Test values around -0.5 and +0.5
var f32 = new Float32Array(1);
var i32 = new Int32Array(f32.buffer);
function round(x) { return Math.round(x); }
function roundf(x) { return Math.round(Math.fround(x)); }
// Warm up
round(2.5);
round(3.5);
roundf(2.5);
roundf(3.5);
f32[0] = 0.5;
i32[0] += 1;
print('0.5+e =', f32[0]);
var x = f32[0];
assertEq(round(x), 1);
assertEq(roundf(x), 1);
f32[0] = 0.5;
i32[0] -= 1;
print('0.5-e =', f32[0]);
var x = f32[0];
assertEq(round(x), 0);
assertEq(roundf(x), 0);
f32[0] = -0.5;
i32[0] += 1;
print('-0.5-e =', f32[0]);
var x = f32[0];
assertEq(round(x), -1);
assertEq(roundf(x), -1);
f32[0] = -0.5;
i32[0] -= 1;
print('-0.5+e =', f32[0]);
var x = f32[0];
assertEq(round(x), -0);
assertEq(roundf(x), -0);
})();
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