To use a predefined function in your C++ program, you have to include its prototype? True or false

you will develop a string-reversing c++ program using functions. You will need to create a function str_rev() that takes a parameter of string type as the input and returns the reversed string.

In this lab, you complete a partially written C++ program that includes two functions that require a single parameter. The program continuously prompts the user for an integer until the user enters 0. The program then passes the value to a function that computes the sum of all the whole numbers from 1 up to and including the entered number. Next, the program passes the value to another function that computes the product of all the whole numbers up to and including the entered number. The source code file provided for this lab includes the necessary variable declarations and the input statement. Comments are included in the file to help you write the remainder of the program. #include <iostream> #include <string> void sums(int); void products(int); using namespace std;  int main()  {    double number;                                  cout << "Enter a positive integer or 0 to quit: ";    cin >> number;     while(number != 0)    {           // Call sums function…

In C++, write a function in C++ that accepts two parameters (hours, and minutes) and returns the total number of seconds.