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e470b13096
Math.log2, Math.log10, Math.log1p, Math.expm1 C implementation ported from fdlibm Part of Issue #3568 JerryScript-DCO-1.0-Signed-off-by: Rafal Walczyna r.walczyna@samsung.com
32 lines
1.2 KiB
JavaScript
32 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 p_zero = 0.0;
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var n_zero = -p_zero;
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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.expm1(NaN)));
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assert(isSameZero(Math.expm1(p_zero), p_zero));
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assert(isSameZero(Math.expm1(n_zero), n_zero));
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assert(Math.expm1(Number.POSITIVE_INFINITY) === Number.POSITIVE_INFINITY);
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assert(Math.expm1(Number.NEGATIVE_INFINITY) === -1);
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assert(1/Math.expm1(-0) === Number.NEGATIVE_INFINITY)
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assert(1/Math.expm1(0) === Number.POSITIVE_INFINITY)
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assert(Math.expm1(1) <= 1.00000001 * (Math.E - 1));
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assert(Math.expm1(1) >= 0.99999999 * (Math.E - 1));
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