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/* Copyright 2023 Yann ORLAREY
*
* 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 <algorithm>
#include <functional>
#include <random>
#include "check.hh"
#include "interval_algebra.hh"
#include "interval_def.hh"
namespace itv {
//------------------------------------------------------------------------------------------
// Interval substraction
static double sub(double a, double b)
{
return a - b;
}
interval interval_algebra::Sub(const interval& x, const interval& y)
{
if (x.isEmpty() || y.isEmpty()) {
return empty();
}
return {x.lo() - y.hi(), x.hi() - y.lo(), std::min(x.lsb(), y.lsb())};
}
void interval_algebra::testSub()
{
// check("test algebra Sub", Sub(interval(0, 100), interval(10, 500)), interval(-500, 90));
analyzeBinaryMethod(10, 2000, "sub", interval(0, 10, 0), interval(0, 10, 0), sub,
&interval_algebra::Sub);
analyzeBinaryMethod(10, 2000, "sub", interval(0, 10, -5), interval(0, 10, 0), sub,
&interval_algebra::Sub);
analyzeBinaryMethod(10, 2000, "sub", interval(0, 10, -10), interval(0, 10, 0), sub,
&interval_algebra::Sub);
analyzeBinaryMethod(10, 2000, "sub", interval(0, 10, -15), interval(0, 10, 0), sub,
&interval_algebra::Sub);
analyzeBinaryMethod(10, 2000, "sub", interval(0, 10, 0), interval(0, 10, -10), sub,
&interval_algebra::Sub);
analyzeBinaryMethod(10, 2000, "sub", interval(0, 10, -5), interval(0, 10, -10), sub,
&interval_algebra::Sub);
analyzeBinaryMethod(10, 2000, "sub", interval(0, 10, -10), interval(0, 10, -10), sub,
&interval_algebra::Sub);
analyzeBinaryMethod(10, 2000, "sub", interval(0, 10, -15), interval(0, 10, -10), sub,
&interval_algebra::Sub);
}
} // namespace itv
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