allocations inline in the caller // rather than happen on the heap. var out [p521ElementLen]byte return e.bytes(&out) } func (e *P521Element) bytes(out *[p521ElementLen]byte) []byte { var tmp p521NonMontgomeryDom p521FromMontgomery(&tmp, &e.x) p521ToBytes(out, (*p521UntypedFieldElem)(&tmp)) p521InvertEndianness(out[:]) return out[:] } // SetBytes sets e = v, where v is a big-endian 66-byte encoding, and returns e. // If v is not 66 bytes or it encodes a value higher than 2^521 - 1, // SetBytes returns...