Method NipN

txscript/stack.go:175–178

NipN removes the Nth object on the stack Stack transformation: NipN(0): [... x1 x2 x3] -> [... x1 x2] NipN(1): [... x1 x2 x3] -> [... x1 x3] NipN(2): [... x1 x2 x3] -> [... x2 x3]

(idx int32)

// NipN(1): [... x1 x2 x3] -> [... x1 x3]
// NipN(2): [... x1 x2 x3] -> [... x2 x3]
func (s *stack) NipN(idx int32) error {
	_, err := s.nipN(idx)
	return err
}

// Tuck copies the item at the top of the stack and inserts it before the 2nd
// to top item.