than all other encodings. func (p *P256Point) BytesCompressed() []byte { // This function is outlined to make the allocations inline in the caller // rather than happen on the heap. var out [p256CompressedLength]byte return p.bytesCompressed(&out) } func (p *P256Point) bytesCompressed(out *[p256CompressedLength]byte) []byte { if p.z.IsZero() == 1 { return append(out[:0], 0) } zinv := new(fiat.P256Element).Invert(&p.z) x := new(fiat.P256Element).Mul(&p.x, zinv) y := new(fiat.P256Element).Mul(&p.y, zinv)...