CppHints.com is a new free resource for C++ developers

The PVS-Studio team has analyzed over 200 open-source projects including Unreal Engine, Php, Haiku, Qt, and even Linux finding bugs of varying severity in each one. 

In C++ Hints, each post shows some incorrect code found in a specific project and provides a detailed explanation. Then you are shown the correct code together with a "recodementation" and tips for how top avoid falling into a similar trap.

You can subscribe to receive each new hint on a daily basis and there's an RSS feed.

You can also  visit cpphints.com to trawl through all the existing hints.