Method WriteBits

rtcm/bits.go:78–90

WriteBits writes n bits (1-32) from the least significant bits of val.

(val uint32, n int)

// WriteBits writes n bits (1-32) from the least significant bits of val.
func (w *BitWriter) WriteBits(val uint32, n int) {
	for i := n - 1; i >= 0; i-- {
		byteIdx := w.pos / 8
		bitIdx := 7 - (w.pos % 8)
		for byteIdx >= len(w.data) {
			w.data = append(w.data, 0)
		}
		if (val>>i)&1 == 1 {
			w.data[byteIdx] |= 1 << bitIdx
		}
		w.pos++
	}
}

// WriteSignedBits writes n bits of a signed value in two's complement.
func (w *BitWriter) WriteSignedBits(val int32, n int) {