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Beginner's Guide to Functions in C++

Rich is a self-confessed C++ guru! In this article he shows us how functions work in C++ and how to use them in everyday C++programming.

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By: Rich C.
Rating: 4 stars4 stars4 stars4 stars4 stars / 236
December 05, 2002
  1. · Beginner's Guide to Functions in C++
  2. · A Basic Program
  3. · Using 2 Different Functions
  4. · Functions Calling Other Functions
  5. · Conclusion

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Beginner's Guide to Functions in C++
(Page 1 of 5 )

All C++ programs use functions. The first program you ever wrote in C++ used a function you declared as "Main". Main is called by the computer operating system. Main is usually declared as an integer-returning function, and that is why your programs end when Main returns a '0'. When Main returns a zero, the operating system is told that everything went OK. Please remember that Main is a REQUIRED function in a C++ program, so it must be used. Therefore, your programs must at least use a function called Main!
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