BinaryWriterWith7BitEncoding & BinaryReaderWith7BitEncoding
- by Tim
Mr. Ayende wrote in his latest blog post about an implementation of a queue. In the post he's using two magical files: BinaryWriterWith7BitEncoding & BinaryReaderWith7BitEncoding
BinaryWriterWith7BitEncoding can write both int and long? using the following method signatures: void WriteBitEncodedNullableInt64(long? value) & void Write7BitEncodedInt(int value)
and
BinaryReaderWith7BitEncoding can read the values written using the following method signatures: long? ReadBitEncodedNullableInt64() and int Read7BitEncodedInt()
So far I've only managed to find a way to read the 7BitEncodedInt:
protected int Read7BitEncodedInt()
{
int value = 0;
int byteval;
int shift = 0;
while(((byteval = ReadByte()) & 0x80) != 0)
{
value |= ((byteval & 0x7F) << shift);
shift += 7;
}
return (value | (byteval << shift));
}
I'm not too good with byte shifting - does anybody know how to read and write the 7BitEncoded long? and write the int ?
