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/*
* MIT License
*
* Copyright (c) 2002-2023 Mikko Tommila
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.apfloat.internal;
import org.apfloat.spi.ConvolutionStrategy;
import org.apfloat.spi.NTTStrategy;
import static org.apfloat.internal.DoubleConstants.*;
/**
* Creates convolutions of suitable type for the double
type.
*
* @see DoubleShortConvolutionStrategy
* @see DoubleMediumConvolutionStrategy
* @see DoubleKaratsubaConvolutionStrategy
* @see ThreeNTTConvolutionStrategy
*
* @version 1.7.0
* @author Mikko Tommila
*/
public class DoubleConvolutionBuilder
extends AbstractConvolutionBuilder
{
/**
* Default constructor.
*/
public DoubleConvolutionBuilder()
{
}
@Override
protected int getKaratsubaCutoffPoint()
{
return DoubleKaratsubaConvolutionStrategy.CUTOFF_POINT;
}
@Override
protected float getKaratsubaCostFactor()
{
return KARATSUBA_COST_FACTOR;
}
@Override
protected float getNTTCostFactor()
{
return NTT_COST_FACTOR;
}
@Override
protected ConvolutionStrategy createShortConvolutionStrategy(int radix)
{
return new DoubleShortConvolutionStrategy(radix);
}
@Override
protected ConvolutionStrategy createMediumConvolutionStrategy(int radix)
{
return new DoubleMediumConvolutionStrategy(radix);
}
@Override
protected ConvolutionStrategy createKaratsubaConvolutionStrategy(int radix)
{
return new DoubleKaratsubaConvolutionStrategy(radix);
}
@Override
protected ConvolutionStrategy createThreeNTTConvolutionStrategy(int radix, NTTStrategy nttStrategy)
{
return new ParallelThreeNTTConvolutionStrategy(radix, nttStrategy);
}
}