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Function
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| *receives [[parameters]] | *receives [[parameters]] | ||
| *acts on the [[parameters]] | *acts on the [[parameters]] | ||
| - | * | + | *[[return|returns]] a value |
Revision as of 10:58, 26 March 2007
Definition
A function is a subroutine to which one or more of the following apply:
- it received parameters
- it acts on the parameters
- it processes data located elsewhere
- it returns a value
A function does not create a new thread, and therefore the process which called the function waits until the function is completed before continuing executing its code.
As opposed to a process, a function doesn't have a frame; statement. See process for more information.
Example
int addInts( int a , int b )
Begin
return a+b;
End
addInts(3,6); will return 9. One can see that the function does indeed:
- receives parameters
- acts on the parameters
- returns a value
