Write Compressed UInt32

  


/*
    This file is part of Sunlit World Scheme
    http://swscheme.codeplex.com/
    Copyright (c) 2010 by Edward Kiser (edkiser@gmail.com)

    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 2 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, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace ExprObjModel
{
    public static partial class Utils
    {

        public static void WriteCompressedUInt32(this Stream str, uint u)
        {
            while (true)
            {
                if ((u & ~0x7Fu) == 0)
                {
                    str.WriteByte(unchecked((byte)u));
                    break;
                }
                else
                {
                    str.WriteByte(unchecked((byte)((u & 0x7Fu) | 0x80u)));
                    u = (u >> 7);
                }
            }
        }
    }
}

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Write Compressed UInt32 : int « Data Types « C# / C Sharp

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