c++ please include comments

5. Write a program that evaluates a predicate of the form (Vr)P. Your program should define the following function Function Name: uwff( Parameter(s): Return: doi: string (*P(int): bool bool where doi is the name of the file to open for reading and (*P)(int) is a function pointer of a bool function that takes an int as a parameter. The function uWff ) should read in and evaluate each element of the file with (P)(int); and then, it should return the truth value of (Vr) P() with the file as the domain of interpretation. Along with the above function, your progranm should define Function Name is0dd) Parameter(s): z: int Return: Function Name isMult5) Parameter(s):: int Return: where isOdd ) returns true only if the absolute value of its parameter is odd, and isMult50 returns true only if the absolute value of its parameter is a multiple of 5. Use the following main function nt main0) string files [2] datal . txt, "data2. txt' } . cout