How is this just not replacing a wrapper with a specialization? On Nov 6, 2007, at 10:00 PM, John Torjo wrote:
We should be able to solve this ;)
We have:
template<class Y, class D> shared_ptr <http://www.boost.org/libs/ smart_ptr/shared_ptr.htm#constructors>(Y * p, D d);
So, for type 'Y', we can have the default deleter default_delete<Y*>();
template<class Y> struct default_delete { void do_delete(Y p) { delete p; } };
template<> struct default_delete<FILE*> { void do_delete(FILE* p) { if (p) fclose(p); } }; ...etc
Users can even specialize default_delete for their custom classes if they wish.
Best, John
I agree but it quickly becomes a pain because you end up writing a wrapper for every thing of this type to satisfy this 'wart' with shared_ptr:
pthread_create ... opendir fopen open free COM objects
the list goes on.
-- http://John.Torjo.com -- C++ expert ... call me only if you want things done right
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