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[lwip-devel] [bug #35587] Uninitialized pointer


From: Simon Goldschmidt
Subject: [lwip-devel] [bug #35587] Uninitialized pointer
Date: Wed, 22 Feb 2012 08:27:16 +0000
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:10.0.2) Gecko/20100101 Firefox/10.0.2

Update of bug #35587 (project lwip):

                  Status:                    None => Invalid                
             Open/Closed:                    Open => Closed                 

    _______________________________________________________

Follow-up Comment #1:

In C, global uninitialized variables (no matter if 'static' or globally
visible), are implcitly initialized to '0' (or 'NULL' for pointer types). This
must be done by the startup code before 'main()' is called (e.g., for gcc, the
section '.bss' is cleared by looping over the whole section and filling it
with zeros).

This is part of the C standard. If it's not working for you, there's a bug in
your startup code. This is a common error found in hand-written startup code.
Some compilers allow skipping the initialization to save space, but that's not
standard conformant.

Closing as invalid.

    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/bugs/?35587>

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