触发Clang静态分析器的示例代码

I would like to see a small but complete snippet of code that will cause Clang's static analyser to complain. My motivation is mostly that I'm trying to get it to work on my PIC32 code, and I need a way to distinguish between "all the code is fine" and "it's not actually doing anything". It's also partly curiosity, since I can't seem to come up with a simple example myself.I would like to see a small but complete snippe