i]) i -= _S k++ } for s := 0; s < _W && k < len(x.limbs) && i > 0; s += 8 { x.limbs[k] |= uint(b[i-1]) << s i-- } if i > 0 { return errors.New("input overflows the modulus size") } return nil } // SetUint assigns x = y. // // The output will be resized to a single limb and overwritten. func (x *Nat) SetUint(y uint) *Nat { x.reset(1) x.limbs[0] = y return x } // Equal returns 1 if x == y, and 0 otherwise. // // Both operands must have the same announced length. // //go:norace func (x *Nat) Equal(y *Nat)...