mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
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
31 lines
1.1 KiB
JavaScript
31 lines
1.1 KiB
JavaScript
// Copyright JS Foundation and other contributors, http://js.foundation
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
var p_zero = 0.0;
|
|
var n_zero = -p_zero;
|
|
|
|
function isSameZero (x, y)
|
|
{
|
|
return x === 0 && (1 / x) === (1 / y);
|
|
}
|
|
|
|
assert(isNaN(Math.log1p(NaN)));
|
|
assert(isNaN(Math.log1p(-42)));
|
|
assert(isNaN(Math.log1p(-3.0)));
|
|
assert(isSameZero(Math.log1p(n_zero), n_zero));
|
|
assert(isSameZero(Math.log1p(p_zero), p_zero));
|
|
assert(Math.log1p(-1) === Number.NEGATIVE_INFINITY);
|
|
assert(Math.log1p(Number.POSITIVE_INFINITY) === Number.POSITIVE_INFINITY);
|
|
assert(Math.log1p(Math.E - 1) === 1);
|