Assume that a new type called point has been defined-- it is a structure consisting of two fields, x and y, both of type double. assume two variables p1 and p2 of type point have been declared. assume that p1 has already been initialized. write some code that makes p2 the reflection of p1: in other words, give p2's x field the value of p1's y field, and give p2's y field, the value of p1's x field.