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Subject: Re: GCC and 64bit Integers

Author: Christophe Theron

Date: 13:32:20 04/04/00

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On April 04, 2000 at 14:36:10, Frank Phillips wrote:

>On April 03, 2000 at 22:35:47, Robert Hyatt wrote:
>
>[Snip]
>>>It is indicative of an uninitialized variable.  A procedure call such as the
>>ones above simply stomp on the stack before your code gets to use the value
>>that was not initialized.
>>
>>you might try gcc -Wall -O2 to let it build a dependency graph and look for
>>such problems.  If it sees a path from the top of the procedure to the bottom,
>>where any variable is referenced before it is initialized (local variables
>>only) it will give you a warning...
>
>Bob/Christophe
>
>Just as you predicted, an uninitialised variable.  Everything is now back to
>normal.
>
>Easy when you know how……… Thanks, this was driving me insane.
>
>The gcc Wall option is very useful and found the extra variable easy.  I had
>looked and looked and looked and………………….
>
>Frank


I suggest to have -Wall all the time. Do not change the warning level to match
the needs of your sources. Change your sources so -Wall detects NO warning, and
it will save yourself from a lot of trouble.


    Christophe



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