return x } // set assigns x = y, optionally resizing x to the appropriate size. func (x *Nat) set(y *Nat) *Nat { x.reset(len(y.limbs)) copy(x.limbs, y.limbs) return x } // Bits returns x as a little-endian slice of uint. The length of the slice // matches the announced length of x. The result and x share the same underlying // array. func (x *Nat) Bits() []uint { return x.limbs } // Bytes returns x as a zero-extended big-endian byte slice. The size of the // slice will match the size of m. // // x...