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oj! Algorithms - ojAlgo - is Open Source Java code that has to do with mathematics, linear algebra and optimisation.
/*
* Copyright 1997-2020 Optimatika
*
* 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.ojalgo.array.operation;
import java.util.function.DoubleBinaryOperator;
import java.util.function.DoubleSupplier;
import org.ojalgo.structure.Structure2D;
public final class FillMatchingDual implements ArrayOperation {
/**
* 2013-10-22: Was set to 128 (based on calibration) but I saw a dip in relative performance (java matrix
* benchmark) at size 200. So I cahnged it to 256.
*/
public static int THRESHOLD = 256;
public static void fillAll(final double[][] target, final double value) {
int limit = target.length;
for (int i = 0; i < limit; i++) {
int tmpInnerLength = target[i].length;
for (int j = 0; j < tmpInnerLength; j++) {
target[i][j] = value;
}
}
}
public static void fillAll(final double[][] target, final DoubleSupplier supplier) {
int limit = target.length;
for (int i = 0; i < limit; i++) {
int tmpInnerLength = target[i].length;
for (int j = 0; j < tmpInnerLength; j++) {
target[i][j] = supplier.getAsDouble();
}
}
}
public static void fillColumn(final double[][] target, final int row, final int col, final double value) {
for (int i = row, limit = target.length; i < limit; i++) {
target[i][col] = value;
}
}
public static void fillColumn(final double[][] target, final int row, final int col, final DoubleSupplier supplier) {
for (int i = row, limit = target.length; i < limit; i++) {
target[i][col] = supplier.getAsDouble();
}
}
public static void fillDiagonal(final double[][] target, final int row, final int col, final double value) {
int limit = target.length;
for (int ij = 0; ((row + ij) < limit) && ((col + ij) < target[row + ij].length); ij++) {
target[row + ij][col + ij] = value;
}
}
public static void fillDiagonal(final double[][] target, final int row, final int col, final DoubleSupplier supplier) {
int limit = target.length;
for (int ij = 0; ((row + ij) < limit) && ((col + ij) < target[row + ij].length); ij++) {
target[row + ij][col + ij] = supplier.getAsDouble();
}
}
public static void fillMatching(final double[][] target, final double left, final DoubleBinaryOperator function, final double[][] right) {
int limit = target.length;
for (int i = 0; i < limit; i++) {
int tmpInnerLength = target[i].length;
for (int j = 0; j < tmpInnerLength; j++) {
target[i][j] = function.applyAsDouble(left, right[i][j]);
}
}
}
public static void fillMatching(final double[][] target, final double[][] left, final DoubleBinaryOperator function, final double right) {
int limit = target.length;
for (int i = 0; i < limit; i++) {
int tmpInnerLength = target[i].length;
for (int j = 0; j < tmpInnerLength; j++) {
target[i][j] = function.applyAsDouble(left[i][j], right);
}
}
}
public static void fillMatching(final double[][] target, final double[][] left, final DoubleBinaryOperator function, final double[][] right) {
int limit = target.length;
for (int i = 0; i < limit; i++) {
int tmpInnerLength = target[i].length;
for (int j = 0; j < tmpInnerLength; j++) {
target[i][j] = function.applyAsDouble(left[i][j], right[i][j]);
}
}
}
public static void fillRange(final double[][] target, final int first, final int limit, final double value) {
int tmpLength = target.length;
for (int index = first; index < limit; index++) {
int tmpRow = Structure2D.row(index, tmpLength);
int tmpcol = Structure2D.column(index, tmpLength);
target[tmpRow][tmpcol] = value;
}
}
public static void fillRange(final double[][] target, final int first, final int limit, final DoubleSupplier supplier) {
int tmpLength = target.length;
for (int index = first; index < limit; index++) {
int tmpRow = Structure2D.row(index, tmpLength);
int tmpcol = Structure2D.column(index, tmpLength);
target[tmpRow][tmpcol] = supplier.getAsDouble();
}
}
public static void fillRow(final double[][] target, final int row, final int col, final double value) {
double[] targetRow = target[row];
for (int j = col, limit = targetRow.length; j < limit; j++) {
targetRow[j] = value;
}
}
public static void fillRow(final double[][] target, final int row, final int col, final DoubleSupplier supplier) {
double[] targetRow = target[row];
for (int j = col, limit = targetRow.length; j < limit; j++) {
targetRow[j] = supplier.getAsDouble();
}
}
@Override
public int threshold() {
return THRESHOLD;
}
}