12: Functions
- Page ID
- 19938
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Functions and procedures (i.e., void functions) help break-up a program into smaller parts making it easier to code, debug, and maintain. Function calls involve two main actions:
- Linkage
- Since the function can be called from multiple different places in the code, the function must be able to return to the correct place in which it was originally called.
- Argument Transmission
- The function must be able to access parameters to operate on or to return results (i.e., access call-by-reference parameters).
The specifics of how each of these actions are accomplished is explained in the following sections.