Contents

// 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:
//
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//     * Redistributions in binary form must reproduce the above
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//       with the distribution.
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function IsNegativeZero(x) {
  assertTrue(x == 0);  // Is 0 or -0.
  var y = 1 / x;
  assertFalse(isFinite(y));
  return y < 0;
}

var pz = 0;
var nz = -0;

assertTrue(IsNegativeZero(nz), "-0");
assertFalse(IsNegativeZero(-nz), "-(-0)");

assertFalse(IsNegativeZero(pz), "0");
assertTrue(IsNegativeZero(-pz), "-(0)");

Version data entries

44 entries across 44 versions & 6 rubygems

Version	Path
mustang-0.2.1	vendor/v8/test/mjsunit/negate-zero.js
mustang-0.2.0	vendor/v8/test/mjsunit/negate-zero.js
mustang-0.1.1	vendor/v8/test/mjsunit/negate-zero.js
mustang-0.1.0	vendor/v8/test/mjsunit/negate-zero.js