log.Fatalf("WriteString truncated. buffer size: %d, offset: %d, len(s)=%d", len(out.buf), out.off, len(s))
	}
	out.off += int64(n)
}

// WriteStringN writes the first n bytes of s.
// If n is larger than len(s) then it is padded with zero bytes.
func (out *OutBuf) WriteStringN(s string, n int) {
	out.WriteStringPad(s, n, zeros[:])
}

// WriteStringPad writes the first n bytes of s.