Re: object-model: Return by value, reference or pointer? (or something else?)

>>>>> Branko Čibej <brane_at_xbc.nu>:

> All right. Then derive svn::string from std::string, and add a .null()
> method. You get to use all the standard string alogorithm
> specializations, plus you get what you want.

There is one known objection to this: std::string doesn't have a virtual
destructor, so if you hand a pointer to your derived string off to
something that holds a std::string* and then do delete on that
std::string* you enter into "undefined behaviour" territory.

Meaning what happens isn't defined, and different compilers can
do... interesting things.
Received on 2010-10-14 21:33:48 CEST