70 lines
1.6 KiB
JavaScript
70 lines
1.6 KiB
JavaScript
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// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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var DOUBLE_ZERO = %AllocateHeapNumber();
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var SMI_ZERO = 0;
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var MINUS_ZERO = -0.0;
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function max1(a, b) {
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a = +a;
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b = +b;
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return +(a < b ? b : a);
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}
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function max2(a, b) {
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a = +a;
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b = +b;
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return a < b ? b : a;
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}
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for (f of [max1, max2]) {
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for (var i = 0; i < 5; i++) {
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assertEquals(4, f(3, 4));
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assertEquals(4, f(4, 3));
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assertEquals(4.3, f(3.3, 4.3));
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assertEquals(4.4, f(4.4, 3.4));
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assertEquals(Infinity, 1 / f(SMI_ZERO, MINUS_ZERO));
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assertEquals(Infinity, 1 / f(DOUBLE_ZERO, MINUS_ZERO));
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assertEquals(-Infinity, 1 / f(MINUS_ZERO, SMI_ZERO));
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assertEquals(-Infinity, 1 / f(MINUS_ZERO, DOUBLE_ZERO));
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assertEquals(NaN, f(NaN, NaN));
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assertEquals(3, f(3, NaN));
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assertEquals(NaN, f(NaN, 3));
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}
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}
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function max3(a, b) {
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a = +a;
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b = +b;
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return +(a > b ? a : b);
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}
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function max4(a, b) {
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a = +a;
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b = +b;
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return a > b ? a : b;
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}
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for (f of [max3, max4]) {
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for (var i = 0; i < 5; i++) {
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assertEquals(4, f(3, 4));
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assertEquals(4, f(4, 3));
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assertEquals(4.3, f(3.3, 4.3));
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assertEquals(4.4, f(4.4, 3.4));
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assertEquals(-Infinity, 1 / f(SMI_ZERO, MINUS_ZERO));
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assertEquals(-Infinity, 1 / f(DOUBLE_ZERO, MINUS_ZERO));
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assertEquals(Infinity, 1 / f(MINUS_ZERO, SMI_ZERO));
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assertEquals(Infinity, 1 / f(MINUS_ZERO, DOUBLE_ZERO));
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assertEquals(NaN, f(NaN, NaN));
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assertEquals(NaN, f(3, NaN));
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assertEquals(3, f(NaN, 3));
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}
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}
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