Looking at examples, they also seem to have 2 space indents. Google C++ Style Guide also uses 2 space indents. I've never measured it, and my observation is ve

Looking at examples, they also seem to have 2 space indents. Google C++ Style Guide also uses 2 space indents. I've never measured it, and my observation is very likely biased (as I've mostly worked with C++), but I've found 80 columns in big C++ projects often very limiting. Maybe less often now, after people are most accepting to new features; e.g type inference `auto` over `MyNameSpace::BlahContainer::const_iterator iter`.