diff options
Diffstat (limited to 'V8Binding/v8/test/mjsunit/toint32.js')
-rw-r--r-- | V8Binding/v8/test/mjsunit/toint32.js | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/V8Binding/v8/test/mjsunit/toint32.js b/V8Binding/v8/test/mjsunit/toint32.js deleted file mode 100644 index 9dad9c9..0000000 --- a/V8Binding/v8/test/mjsunit/toint32.js +++ /dev/null @@ -1,129 +0,0 @@ -// Copyright 2008 the V8 project authors. All rights reserved. -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following -// disclaimer in the documentation and/or other materials provided -// with the distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived -// from this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -function toInt32(x) { - return x | 0; -} - -assertEquals(0, toInt32(Infinity), "Inf"); -assertEquals(0, toInt32(-Infinity), "-Inf"); -assertEquals(0, toInt32(NaN), "NaN"); -assertEquals(0, toInt32(0.0), "zero"); -assertEquals(0, toInt32(-0.0), "-zero"); - -assertEquals(0, toInt32(Number.MIN_VALUE)); -assertEquals(0, toInt32(-Number.MIN_VALUE)); -assertEquals(0, toInt32(0.1)); -assertEquals(0, toInt32(-0.1)); -assertEquals(1, toInt32(1), "one"); -assertEquals(1, toInt32(1.1), "onepointone"); -assertEquals(-1, toInt32(-1), "-one"); -assertEquals(0, toInt32(0.6), "truncate positive (0.6)"); -assertEquals(1, toInt32(1.6), "truncate positive (1.6)"); -assertEquals(0, toInt32(-0.6), "truncate negative (-0.6)"); -assertEquals(-1, toInt32(-1.6), "truncate negative (-1.6)"); - -assertEquals(2147483647, toInt32(2147483647)); -assertEquals(-2147483648, toInt32(2147483648)); -assertEquals(-2147483647, toInt32(2147483649)); - -assertEquals(-1, toInt32(4294967295)); -assertEquals(0, toInt32(4294967296)); -assertEquals(1, toInt32(4294967297)); - -assertEquals(-2147483647, toInt32(-2147483647)); -assertEquals(-2147483648, toInt32(-2147483648)); -assertEquals(2147483647, toInt32(-2147483649)); - -assertEquals(1, toInt32(-4294967295)); -assertEquals(0, toInt32(-4294967296)); -assertEquals(-1, toInt32(-4294967297)); - -assertEquals(-2147483648, toInt32(2147483648.25)); -assertEquals(-2147483648, toInt32(2147483648.5)); -assertEquals(-2147483648, toInt32(2147483648.75)); -assertEquals(-1, toInt32(4294967295.25)); -assertEquals(-1, toInt32(4294967295.5)); -assertEquals(-1, toInt32(4294967295.75)); -assertEquals(-1294967296, toInt32(3000000000.25)); -assertEquals(-1294967296, toInt32(3000000000.5)); -assertEquals(-1294967296, toInt32(3000000000.75)); - -assertEquals(-2147483648, toInt32(-2147483648.25)); -assertEquals(-2147483648, toInt32(-2147483648.5)); -assertEquals(-2147483648, toInt32(-2147483648.75)); -assertEquals(1, toInt32(-4294967295.25)); -assertEquals(1, toInt32(-4294967295.5)); -assertEquals(1, toInt32(-4294967295.75)); -assertEquals(1294967296, toInt32(-3000000000.25)); -assertEquals(1294967296, toInt32(-3000000000.5)); -assertEquals(1294967296, toInt32(-3000000000.75)); - -var base = Math.pow(2, 64); -assertEquals(0, toInt32(base + 0)); -assertEquals(0, toInt32(base + 1117)); -assertEquals(4096, toInt32(base + 2234)); -assertEquals(4096, toInt32(base + 3351)); -assertEquals(4096, toInt32(base + 4468)); -assertEquals(4096, toInt32(base + 5585)); -assertEquals(8192, toInt32(base + 6702)); -assertEquals(8192, toInt32(base + 7819)); -assertEquals(8192, toInt32(base + 8936)); -assertEquals(8192, toInt32(base + 10053)); -assertEquals(12288, toInt32(base + 11170)); -assertEquals(12288, toInt32(base + 12287)); -assertEquals(12288, toInt32(base + 13404)); -assertEquals(16384, toInt32(base + 14521)); -assertEquals(16384, toInt32(base + 15638)); -assertEquals(16384, toInt32(base + 16755)); -assertEquals(16384, toInt32(base + 17872)); -assertEquals(20480, toInt32(base + 18989)); -assertEquals(20480, toInt32(base + 20106)); -assertEquals(20480, toInt32(base + 21223)); -assertEquals(20480, toInt32(base + 22340)); -assertEquals(24576, toInt32(base + 23457)); -assertEquals(24576, toInt32(base + 24574)); -assertEquals(24576, toInt32(base + 25691)); -assertEquals(28672, toInt32(base + 26808)); -assertEquals(28672, toInt32(base + 27925)); -assertEquals(28672, toInt32(base + 29042)); -assertEquals(28672, toInt32(base + 30159)); -assertEquals(32768, toInt32(base + 31276)); - -// bignum is (2^53 - 1) * 2^31 - highest number with bit 31 set. -var bignum = Math.pow(2, 84) - Math.pow(2, 31); -assertEquals(-Math.pow(2,31), toInt32(bignum)); -assertEquals(-Math.pow(2,31), toInt32(-bignum)); -assertEquals(0, toInt32(2 * bignum)); -assertEquals(0, toInt32(-(2 * bignum))); -assertEquals(0, toInt32(bignum - Math.pow(2,31))); -assertEquals(0, toInt32(-(bignum - Math.pow(2,31)))); - -// max_fraction is largest number below 1. -var max_fraction = (1 - Math.pow(2,-53)); -assertEquals(0, toInt32(max_fraction)); -assertEquals(0, toInt32(-max_fraction)); |