You introduce functions with a program that calls – or makes use of – two functions. So, you have main(), which is included in every program, and you have firstFunction() and secondFunction(). Each time a function finishes, program control is returned to whatever called the function. In this case, that is main(). The code and output are as follows:
(PLEASE SEE THE UPDATES BELOW THE ORIGINAL PROGRAM PROVIDED.)
If you have any issues with the code as provided, please try the following updates to the program.
- The compiler is looking for the data types of the return values for the function prototypes.
In this example, the two functions do not return values, so void is used to indicate no value will be returned.
- As usual this term, add a 0 to the return line. We discussed why we do this during Unit 3’s lecture and in Unit 2’s discussion board.
- Since we indicated in our function prototypes that our functions would not return values, we’ll need to indicate the same in our function definitions. Add void in the place of the return data type for each function.
Notice the functions are “prototyped,” that is, the function definition is written above main() and followed with a semi-colon.
The flowchart for the code is as follows:
Now, you try copying the code, and writing the flowcharts.
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