1 // Copyright 2010 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Flags: --allow-natives-syntax 29 // Tests the special cases specified by ES 15.8.2.13 30 31 function test() { 32 // Simple sanity check 33 assertEquals(4, Math.pow(2, 2)); 34 assertEquals(2147483648, Math.pow(2, 31)); 35 assertEquals(0.25, Math.pow(2, -2)); 36 assertEquals(0.0625, Math.pow(2, -4)); 37 assertEquals(1, Math.pow(1, 100)); 38 assertEquals(0, Math.pow(0, 1000)); 39 40 // Spec tests 41 assertEquals(NaN, Math.pow(2, NaN)); 42 assertEquals(NaN, Math.pow(+0, NaN)); 43 assertEquals(NaN, Math.pow(-0, NaN)); 44 assertEquals(NaN, Math.pow(Infinity, NaN)); 45 assertEquals(NaN, Math.pow(-Infinity, NaN)); 46 47 assertEquals(1, Math.pow(NaN, +0)); 48 assertEquals(1, Math.pow(NaN, -0)); 49 50 assertEquals(NaN, Math.pow(NaN, NaN)); 51 assertEquals(NaN, Math.pow(NaN, 2.2)); 52 assertEquals(NaN, Math.pow(NaN, 1)); 53 assertEquals(NaN, Math.pow(NaN, -1)); 54 assertEquals(NaN, Math.pow(NaN, -2.2)); 55 assertEquals(NaN, Math.pow(NaN, Infinity)); 56 assertEquals(NaN, Math.pow(NaN, -Infinity)); 57 58 assertEquals(Infinity, Math.pow(1.1, Infinity)); 59 assertEquals(Infinity, Math.pow(-1.1, Infinity)); 60 assertEquals(Infinity, Math.pow(2, Infinity)); 61 assertEquals(Infinity, Math.pow(-2, Infinity)); 62 63 // Because +0 == -0, we need to compare 1/{+,-}0 to {+,-}Infinity 64 assertEquals(+Infinity, 1/Math.pow(1.1, -Infinity)); 65 assertEquals(+Infinity, 1/Math.pow(-1.1, -Infinity)); 66 assertEquals(+Infinity, 1/Math.pow(2, -Infinity)); 67 assertEquals(+Infinity, 1/Math.pow(-2, -Infinity)); 68 69 assertEquals(NaN, Math.pow(1, Infinity)); 70 assertEquals(NaN, Math.pow(1, -Infinity)); 71 assertEquals(NaN, Math.pow(-1, Infinity)); 72 assertEquals(NaN, Math.pow(-1, -Infinity)); 73 74 assertEquals(+0, Math.pow(0.1, Infinity)); 75 assertEquals(+0, Math.pow(-0.1, Infinity)); 76 assertEquals(+0, Math.pow(0.999, Infinity)); 77 assertEquals(+0, Math.pow(-0.999, Infinity)); 78 79 assertEquals(Infinity, Math.pow(0.1, -Infinity)); 80 assertEquals(Infinity, Math.pow(-0.1, -Infinity)); 81 assertEquals(Infinity, Math.pow(0.999, -Infinity)); 82 assertEquals(Infinity, Math.pow(-0.999, -Infinity)); 83 84 assertEquals(Infinity, Math.pow(Infinity, 0.1)); 85 assertEquals(Infinity, Math.pow(Infinity, 2)); 86 87 assertEquals(+Infinity, 1/Math.pow(Infinity, -0.1)); 88 assertEquals(+Infinity, 1/Math.pow(Infinity, -2)); 89 90 assertEquals(-Infinity, Math.pow(-Infinity, 3)); 91 assertEquals(-Infinity, Math.pow(-Infinity, 13)); 92 93 assertEquals(Infinity, Math.pow(-Infinity, 3.1)); 94 assertEquals(Infinity, Math.pow(-Infinity, 2)); 95 96 assertEquals(-Infinity, 1/Math.pow(-Infinity, -3)); 97 assertEquals(-Infinity, 1/Math.pow(-Infinity, -13)); 98 99 assertEquals(+Infinity, 1/Math.pow(-Infinity, -3.1)); 100 assertEquals(+Infinity, 1/Math.pow(-Infinity, -2)); 101 102 assertEquals(+Infinity, 1/Math.pow(+0, 1.1)); 103 assertEquals(+Infinity, 1/Math.pow(+0, 2)); 104 105 assertEquals(Infinity, Math.pow(+0, -1.1)); 106 assertEquals(Infinity, Math.pow(+0, -2)); 107 108 assertEquals(-Infinity, 1/Math.pow(-0, 3)); 109 assertEquals(-Infinity, 1/Math.pow(-0, 13)); 110 111 assertEquals(+Infinity, 1/Math.pow(-0, 3.1)); 112 assertEquals(+Infinity, 1/Math.pow(-0, 2)); 113 114 assertEquals(-Infinity, Math.pow(-0, -3)); 115 assertEquals(-Infinity, Math.pow(-0, -13)); 116 117 assertEquals(Infinity, Math.pow(-0, -3.1)); 118 assertEquals(Infinity, Math.pow(-0, -2)); 119 120 assertEquals(NaN, Math.pow(-0.00001, 1.1)); 121 assertEquals(NaN, Math.pow(-0.00001, -1.1)); 122 assertEquals(NaN, Math.pow(-1.1, 1.1)); 123 assertEquals(NaN, Math.pow(-1.1, -1.1)); 124 assertEquals(NaN, Math.pow(-2, 1.1)); 125 assertEquals(NaN, Math.pow(-2, -1.1)); 126 assertEquals(NaN, Math.pow(-1000, 1.1)); 127 assertEquals(NaN, Math.pow(-1000, -1.1)); 128 129 assertEquals(+Infinity, 1/Math.pow(-0, 0.5)); 130 assertEquals(+Infinity, 1/Math.pow(-0, 0.6)); 131 assertEquals(-Infinity, 1/Math.pow(-0, 1)); 132 assertEquals(-Infinity, 1/Math.pow(-0, 10000000001)); 133 134 assertEquals(+Infinity, Math.pow(-0, -0.5)); 135 assertEquals(+Infinity, Math.pow(-0, -0.6)); 136 assertEquals(-Infinity, Math.pow(-0, -1)); 137 assertEquals(-Infinity, Math.pow(-0, -10000000001)); 138 139 assertEquals(4, Math.pow(16, 0.5)); 140 assertEquals(NaN, Math.pow(-16, 0.5)); 141 assertEquals(0.25, Math.pow(16, -0.5)); 142 assertEquals(NaN, Math.pow(-16, -0.5)); 143 144 // Test detecting and converting integer value as double. 145 assertEquals(8, Math.pow(2, Math.sqrt(9))); 146 147 // Tests from Mozilla 15.8.2.13. 148 assertEquals(2, Math.pow.length); 149 assertEquals(NaN, Math.pow()); 150 assertEquals(1, Math.pow(null, null)); 151 assertEquals(NaN, Math.pow(void 0, void 0)); 152 assertEquals(1, Math.pow(true, false)); 153 assertEquals(0, Math.pow(false, true)); 154 assertEquals(Infinity, Math.pow(-Infinity, Infinity)); 155 assertEquals(0, Math.pow(-Infinity, -Infinity)); 156 assertEquals(1, Math.pow(0, 0)); 157 assertEquals(0, Math.pow(0, Infinity)); 158 assertEquals(NaN, Math.pow(NaN, 0.5)); 159 assertEquals(NaN, Math.pow(NaN, -0.5)); 160 161 // Tests from Sputnik S8.5_A13_T1. 162 assertTrue( 163 (1*((Math.pow(2,53))-1)*(Math.pow(2,-1074))) === 4.4501477170144023e-308); 164 assertTrue( 165 (1*(Math.pow(2,52))*(Math.pow(2,-1074))) === 2.2250738585072014e-308); 166 assertTrue( 167 (-1*(Math.pow(2,52))*(Math.pow(2,-1074))) === -2.2250738585072014e-308); 168 } 169 170 test(); 171 test(); 172 %OptimizeFunctionOnNextCall(test); 173 test();
