mem_fn does not work with CComPtr<T> in debug mode

[Roman Perepelitsa <roman.perepelitsa@…>]

Short description: boost::mem_fn does not work with CComPtr<T> in debug mode, because it takes the address of CComPtr<T>, which asserts.

See the thread on boost-users in which the problem was discussed: ​http://groups.google.com/group/boost-list/browse_thread/thread/e74efb5329e47e4e/83663a064e8838cc#83663a064e8838cc.

To reproduce the problem without CComPtr:

#include <cstdlib> #include <boost/bind.hpp>

struct foo {

void bar() {}

} f;

struct ptr {

void* operator&() { std::abort(); }

};

foo* get_pointer(const ptr& p) { return &f; }

int main() {

boost::bind(&foo::bar, ptr())();

}

I attached a diff against trunk that fixes the problem in a backward compatible way.

[roman.perepelitsa@…]

I initially assigned this to pdimov, but didn't receive any feedback in 6 months. Is it because someone else currently maintains bind?

Steven, could you reassign to the appropriate person?

[Peter Dimov]

(In [58073]) Make mem_fn work with overloaded unary operator&. Refs #3003. Sorry it took so long.

[Peter Dimov]

(In [58093]) Fix Borland regression. Refs #3003.

[Peter Dimov]

(In [58119]) Merge [58073], [58093] to release. Fixes #3003.