I work in embedded C/C++ all day and have a soft limit of 80 characters per line and 60 lines per method. 99% of my code will conform but no big deal if you go

I work in embedded C/C++ all day and have a soft limit of 80 characters per line and 60 lines per method. 99% of my code will conform but no big deal if you go over and don't lose visual appeal. 80/line is nice because you can put a .cpp/.h next to each other on a widescreen monitor.