Let’s see pimpl and its alternatives in a real application! I’ve implemented a small utility app - for file compression - where we can experiment with various designs. Is it better to use pimpl or maybe abstract interfaces? Read on to discover. Intro In my previous post I covered the pimpl pattern.

When I was working on the Smart Pointer Reference Card I run into a quite interesting issue. It appears that in some cases memory allocated for the object controlled by smart_ptr might not be released until all weak pointers are also ‘dead’. Such case was surprising to me because I thought that the moment the last share_ptr goes down, the memory is released.