To be honest, I think gcc has pretty much caught up with clang with gcc-4.9 when it comes to error message quality. I have a slight preference for the way clan

To be honest, I think gcc has pretty much caught up with clang with gcc-4.9 when it comes to error message quality. I have a slight preference for the way clang chooses to highlight the entire AST parent node that it thinks is responsible for the error, but the approach g++ takes is perfectly clear.