[ scummvm-Bugs-3087852 ] SAGA: Code analysis warnings

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Bugs item #3087852, was opened at 2010-10-15 00:54
Message generated for change (Tracker Item Submitted) made by littleboy
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Category: Compiler error
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Julien (littleboy)
Assigned to: Nobody/Anonymous (nobody)
Summary: SAGA: Code analysis warnings

Initial Comment:
Here are the warnings I get when compiling the engine using Code Analysis in VS2010. I tried to remove all the obvious false positives. Some warnings look suspicious, others are pointing to correct code that still might benefit from better error checking.

d:\sources\scummvm\scummvm\engines\saga\saga.cpp(428): warning C6308: 'realloc' might return null pointer: assigning null pointer to 'stringsTable.strings', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
d:\sources\scummvm\scummvm\engines\saga\saga.cpp(436): warning C6308: 'realloc' might return null pointer: assigning null pointer to 'stringsTable.strings', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
d:\sources\scummvm\scummvm\engines\saga\shorten.cpp(369): warning C6308: 'realloc' might return null pointer: assigning null pointer to 'lpc', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
d:\sources\scummvm\scummvm\engines\saga\shorten.cpp(433): warning C6308: 'realloc' might return null pointer: assigning null pointer to 'unpackedBuffer', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
d:\sources\scummvm\scummvm\engines\saga\shorten.cpp(467): warning C6308: 'realloc' might return null pointer: assigning null pointer to 'unpackedBuffer', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
d:\sources\scummvm\scummvm\engines\saga\sprite.cpp(118): warning C6308: 'realloc' might return null pointer: assigning null pointer to 'spriteList.infoList', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
d:\sources\scummvm\scummvm\engines\saga\actor.cpp(151): warning C6308: 'realloc' might return null pointer: assigning null pointer to '_tileDirections', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
d:\sources\scummvm\scummvm\engines\saga\actor.cpp(164): warning C6308: 'realloc' might return null pointer: assigning null pointer to '_walkStepsPoints', which is passed as an argument to 'realloc', will cause the original memory block to be leaked

Warning information: http://msdn.microsoft.com/en-us/library/kkedhy7c%28VS.90%29.aspx

Note:
If you want to try it yourself, you will need:
 - the create_project patch set, along with the WIP code analysis patch (http://bitbucket.org/Littleboy/scummvm-jt/src)
 - the following patch to silence some false positives ( http://bitbucket.org/Littleboy/scummvm-jt/src/tip/COMMON%20-%20Add%20annotations%20for%20analysis%20build%20configuration.patch )
 - Visual Studio 2010 Ultimate or Team System (create_project support for analysis with VS2005/2008 isn't complete yet)


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