Skeleton for Writing a Function

return_type  function_name (  argument_list ) {
   local declarations

   initializations

   processing statements

   return statement
}

The return statement can occur among the processing statements instead of, or as well as at the end of the {} block which is the function body.
The return statement should be

return expression;

where the expression is of the same type as the declared return_type (or at least can be converted implicitly to that type).