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Datastructures and utility classes for non-negative integers

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/*
 * Copyright (C) 2017 Tobias Meggendorfer
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */

package de.tum.in.naturals.set;

import java.util.Spliterator;

public final class NatBitSetsUtil {
    public static final int SPLITERATOR_CHARACTERISTICS =
            Spliterator.ORDERED | Spliterator.SORTED | Spliterator.DISTINCT | Spliterator.NONNULL | Spliterator.SIZED;

    private NatBitSetsUtil() {}

    public static void checkInDomain(int domainSize, int index) {
        checkNonNegative(index);
        if (domainSize <= index) {
            throw new IndexOutOfBoundsException(
                    String.format("Index %d too large for domain [0, %d)", index, domainSize));
        }
    }

    public static void checkInDomain(int domainSize, int from, int to) {
        checkRange(from, to);
        if (domainSize < to) {
            throw new IndexOutOfBoundsException(
                    String.format("To index %d too large for domain [0, %d)", to, domainSize));
        }
    }

    public static void checkNonNegative(int index) {
        if (index < 0) {
            throw new IndexOutOfBoundsException(String.format("Negative index %d ", index));
        }
    }

    public static void checkRange(int from, int to) {
        if (to < from) {
            throw new IndexOutOfBoundsException(String.format("From %d bigger than to %d", from, to));
        }
        if (from < 0) {
            throw new IndexOutOfBoundsException(String.format("Negative from index %d ", from));
        }
    }
}