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over flow

Posted on 1998-10-26
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Last Modified: 2010-04-30
Hi experts

I am making a program which needs to calculate some numbers.

When the user input some very big numbers, the calculation may cause OVER FLOW and the program stopped!

How can I detect the calculating result will be over flow and avoid the program stopping?
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Question by:victorlong
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4 Comments
 
LVL 14

Accepted Solution

by:
waty earned 100 total points
ID: 1441599
Always work with variables big enough to receive the biggest possible value. You should use double or currency variables.

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Author Comment

by:victorlong
ID: 1441600
Hi Waty

In my program, no matter what variables type I use, a user can always causes a over flow result. That is because the user doing something wrong and the program may not stop the user doing so.


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LVL 14

Expert Comment

by:waty
ID: 1441601
You could limit the entry at 10 characters (for example).

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Author Comment

by:victorlong
ID: 1441602
Is this a good idea:

On error goto......
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