forked from xuos/xiuos
52 lines
1.7 KiB
JavaScript
52 lines
1.7 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 nan = NaN;
|
|
var p_zero = 0.0;
|
|
var m_zero = -p_zero;
|
|
var p_inf = Infinity;
|
|
var m_inf = -p_inf;
|
|
|
|
assert (isNaN(Math['round'](NaN)));
|
|
assert (Math['round'](p_zero) === p_zero);
|
|
assert (Math['round'](m_zero) === m_zero);
|
|
assert (Math['round'](p_inf) === p_inf);
|
|
assert (Math['round'](m_inf) === m_inf);
|
|
|
|
assert (Math['round'](0.5) === 1.0);
|
|
assert (Math['round'](-0.5) === -0.0);
|
|
assert (Math['round'](1.2) === 1.0);
|
|
assert (Math['round'](1.5) === 2.0);
|
|
assert (Math['round'](0.7) === 1.0);
|
|
assert (Math['round'](0.2) === 0.0);
|
|
assert (Math['round'](-0.2) === -0.0);
|
|
assert (Math['round'](-0.7) === -1.0);
|
|
assert (Math['round'](-1.2) === -1.0);
|
|
assert (Math['round'](-1.7) === -2.0);
|
|
assert (Math['round'](-1.5) === -1.0);
|
|
|
|
assert (Math['round'](1) === 1);
|
|
assert (Math['round'](-1) === -1);
|
|
|
|
for (var n = 1; n <= 53; n++)
|
|
{
|
|
var x = Math.pow(2, n)
|
|
assert (Math['round'](x - 1) === x - 1);
|
|
assert (Math['round'](x) === x);
|
|
assert (Math['round'](x + 1) === x + 1);
|
|
assert (Math['round'](-x - 1) === -x - 1);
|
|
assert (Math['round'](-x) === -x);
|
|
assert (Math['round'](-x + 1) === -x + 1);
|
|
}
|