C++ Primer Plus

Using a User-Defined Function That Has a Return Value

Let’s go one step further and write a function that uses the return statement. The main() function already illustrates the plan for a function with a return value: Give the return type in the function header and use return at the end of the function body. You can use this form to solve a weighty problem for those visiting the United Kingdom. In the United Kingdom, many bathroom scales are calibrated in stone instead of in U.S. pounds or international kilograms. The word stone is both singular and plural in this context. (The English language does lack the internal consistency of, say, C++.) One stone is 14 pounds, and the program in Listing 2.6 uses a function to make this conversion.

Listing ...