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/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
*
* 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.
*/
#include "nike/AbsoluteEpsilonEqual.h"
#include <cmath>
#include <cfloat>
namespace nike
{
bool AbsoluteEpsilonEqualFunctor::operator()(float lhs, float rhs) const
{
if (std::isnan(lhs) && std::isnan(rhs))
{
return true;
}
const auto diff = std::fabs(lhs - rhs);
return diff <= _tolerance;
}
AbsoluteEpsilonEqualFunctor absolute_epsilon_equal(float tolerance)
{
return AbsoluteEpsilonEqualFunctor{tolerance};
}
} // namespace nike
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