Sorting std::list of pointers

How do I sort a std::list<someClass*>? The workaround posted here: http://suppo开发者_运维技巧rt.microsoft.com/kb/265109 doesn’t seem to work.

error: 'greater<class Object *>' has already been instantiated from the primary template

I’m using MS VC++ 6.0 as IDE.

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Probably this might help you: STL Algorithms: sort