Thanks again Peter. The first solution was actually the one I was trying to compile but was getting linker errors trying to find the body of the concrete function (using MSVC 7) - wierd. Peter Dimov wrote:
From: "Mark Snelling" <mark@bakedbeans.com> [...]
std::list<Object*> mylist;
I can call the for_each algorithm on this list using my function above:
std::for_each(mylist.begin(), mylist.end(), &deleter);
and it will delete all of the objects pointed to in the list. Is it possible to convert deleter into a templated function:
template<class T> void deleter(T* t) { delete t; }
and pass that into the for_each algorithm?
Yes. You can use
std::for_each(mylist.begin(), mylist.end(), &deleter<Object>);
If this doesn't work, try
#include <boost/checked_delete.hpp>
std::for_each(mylist.begin(), mylist.end(), boost::checked_deleter<Object>());
An alternative is to convert mylist to
std::list< boost::shared_ptr<Object > mylist;
and let it worry about the lifetime of the objects.
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