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fb4b18a515
Math.trunc(x) should be -0.0 if -1 < x < 0 (ES2015 20.2.2.35). The problem was that -0 isn't -0.0, but +0.0 in C. There were a test case for it, but it was incorrect, because +0.0 === -0.0 in JS. JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác oszi@inf.u-szeged.hu
37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
// Copyright JS Foundation and other contributors, http://js.foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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var nan = NaN;
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var p_zero = 0.0;
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var m_zero = -p_zero;
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var p_inf = Infinity;
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var m_inf = -p_inf;
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function isSameZero (x, y)
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{
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return x === 0 && (1 / x) === (1 / y);
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}
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assert (isNaN(Math['trunc'](NaN)));
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assert (isSameZero (Math['trunc'](p_zero), p_zero));
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assert (isSameZero (Math['trunc'](m_zero), m_zero));
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assert (Math['trunc'](p_inf) === p_inf);
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assert (Math['trunc'](m_inf) === m_inf);
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assert (isSameZero (Math['trunc'](0.5), p_zero));
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assert (isSameZero (Math['trunc'](-0.5), m_zero));
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assert (Math['trunc'](1.2) === 1);
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assert (Math['trunc'](-1.5) === -1);
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assert (Math['trunc'](65.7) === 65);
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assert (Math['trunc'](-24.9) === -24);
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