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void pushItem or int pushItem checking err codes

Posted on 2009-02-19
Medium Priority
Last Modified: 2012-05-06

is it usually to check whether the push operation in the stack is successful.

Something like this

print somethng....

usually, i notice, it is void pushItem instead of int pushItem...

which is the usual way. thanks a million.
Question by:zizi21
LVL 10

Assisted Solution

peetm earned 800 total points
ID: 23680102
I would say that if pushItem() may fail [and it probably can!], then, you should have some mechanism for detecting that.

Of course, this could be implemented within pushItem(), but what would that mean - 'abort' most likely.

If you were using C++ you could use exceptions - functions that return indications of success/failure have a way of being called like subroutines, i.e., having their result ignored.
LVL 53

Accepted Solution

Infinity08 earned 1200 total points
ID: 23680106
Depends. If your stack/queue has a limited size, you might want to return an error in case the stack is full, and the user tries to push a value on it.

Author Comment

ID: 23680163
thanks a million...

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