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QuestDB is high performance SQL time series database

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 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2024 QuestDB
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 *  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
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 *  http://www.apache.org/licenses/LICENSE-2.0
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 *  distributed under the License is distributed on an "AS IS" BASIS,
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package io.questdb.std.bytes;

public class Bytes {

    private Bytes() {
    }

    /**
     * Aligns the given size to 2 bytes.
     */
    public static long align2b(long size) {
        return (size + 1) & ~0x1;
    }

    /**
     * Aligns the given size to 4 bytes.
     */
    public static long align4b(long size) {
        return (size + 3) & ~0x3;
    }

    /**
     * Aligns the given size to 8 bytes.
     */
    public static long align8b(long size) {
        return (size + 7) & ~0x7;
    }

    /**
     * Compute the size of a range, checking for overflow.
     */
    public static int checkedLoHiSize(long lo, long hi, int baseSize) {
        final long additional = hi - lo;
        if (additional < 0) {
            throw new IllegalArgumentException("lo > hi");
        }
        final long size = baseSize + additional;

        if (size > (long) Integer.MAX_VALUE) {
            throw new IllegalArgumentException("size exceeds 2GiB limit");
        }
        return (int) additional;
    }
}