Java Unsigned Number Create unsignedLeb128Size(int value)

Description

Gets the number of bytes in the unsigned LEB128 encoding of the given value.

License

Apache License

Parameter

Parameter	Description
value	the value in question

Return

its write size, in bytes

Declaration

public static int unsignedLeb128Size(int value) 

Method Source Code

//package com.java2s;
/*//from www .j a  v a 2 s  .c  o  m
 * Copyright (C) 2008 The Android Open Source Project
 *
 * 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.
 */

public class Main {
    /**
     * Gets the number of bytes in the unsigned LEB128 encoding of the
     * given value.
     *
     * @param value the value in question
     * @return its write size, in bytes
     */
    public static int unsignedLeb128Size(int value) {
        // TODO: This could be much cleverer.

        int remaining = value >> 7;
        int count = 0;

        while (remaining != 0) {
            remaining >>= 7;
            count++;
        }

        return count + 1;
    }
}

Related

1. unsignedIntToLong(Integer i)
2. unsignedIntToSignedByte(final int i)
3. unsignedIntToString(int x)
4. unsignedIntToString(int x, int radix)
5. unsignedIntValue(byte[] data, int offset)
6. unsignedLessThan(long a, long b)
7. unsignedLocalIntersect2by2(final short[] set1, final int length1, final short[] set2, final int length2, final short[] buffer)
8. unsignedLocalIntersect2by2Cardinality(final short[] set1, final int length1, final short[] set2, final int length2)
9. unsignedLong(byte b)