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Subject: Re: [boost] [test] console_test_runner ported on *nix
From: Kevin Sopp (baraclese_at_[hidden])
Date: 2008-09-19 15:56:46

> >From what I understand order of events is as follows:
> 1. tu.second resolved (memory accessed)
> 2. ~test_case() invoked
> 3. ~test_unit() invoked
> 4. framework::deregister_test_unit( this ) is invoked
> 5. map.erase( tu )
> 6. free( ptr )
> If what you saying is true we perform first step twice. Second time before 6th
> step. Why would compiler do this?

Because in debug mode the compiler doesn't optimize this access. Maybe
it does in release, maybe not. Maybe valgrind would still complain ;-)

> Can you test it? just create temp pointer test_unit* tu_ptr = tu.second; before
> delete.

I had to change the code like this to make it work:

            // the delete will erase this element from map
            test_unit* tu_ptr = tu.second;
            m_test_units.erase( tu.second->p_id );
            if( test_id_2_unit_type( tu_ptr->p_id ) == tut_suite )
                delete (test_suite const*)tu_ptr;
                delete (test_case const*)tu_ptr;

and I commented out the deregister_test_unit() code.

Or first delete the test_unit then erase tu from the map. I like to
destroy objects in the opposite order in which they were created.

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