internal override unsafe int Decode( string str, int startPos, int len ) {
Debug.Assert( str != null );
Debug.Assert( len >= 0 );
Debug.Assert( startPos >= 0 );
Debug.Assert( str.Length - startPos >= len );
if ( len == 0 ) {
return 0;
}
int bytesDecoded, charsDecoded;
fixed ( char* pChars = str ) {
fixed ( byte* pBytes = &buffer[curIndex] ) {
Decode( pChars + startPos, pChars + startPos + len, pBytes, pBytes + ( endIndex - curIndex ),
ref this.hasHalfByteCached, ref this.cachedHalfByte, out charsDecoded, out bytesDecoded );
}
}
curIndex += bytesDecoded;
return charsDecoded;
}