memcpy method
Copy data from other to this buffer, at start offset from the
current read position, and length number of bytes. offset is
the offset in other to start reading.
Implementation
void memcpy(int start, int length, dynamic other, [int offset = 0]) {
if (other is InputBuffer) {
buffer.setRange(this.offset + start, this.offset + start + length,
other.buffer, other.offset + offset);
} else {
buffer.setRange(this.offset + start, this.offset + start + length,
other as List<int>, offset);
}
}