
"Daniel Lidström" <daniel.lidstrom@sbg.se> wrote in message news:E1F34343C3A0804BB3E29ABBFCBBAF0C01BCE3@ADA...
Hello,
I want to use the shared_ptr with objects that are allocated using a factory. The problem is the deallocation. It has to be done with a ``manager'' class. For example, here is how the allocation and deallocation has to be done:
PxyFileData& geo_file = dynamic_cast<PxyFileData&>(fileMan.New("geo")); fileMan.Close(geo_file);
I would like to be able to put shared_ptr<PxyFileData>'s into a std::vector and then forget about the deallocation. I.e. fileMan.Close(...) should be done automatically when the objects aren't needed anymore. But since the deallocation isn't simply delete, how can I do this?
I believe this should do it: typedef shared_ptr<void> tPxyFileDataPtr; typedef ??? tFileMan; tPxyFileDataPtr PxyFileDataPtr( const char* aName, tFileMan& fileMan ) { return tPxyFileDataPtr( dynamic_cast<PxyFileData&>(fileMan.New(aName)) , boost::bind( &tFileMan::New, fileMan ) ); } Alternate usages of shared_ptr are described in the docs. Jeff Flinn