Mass rename of C++ .c files to .cc suffix?

[Jonathan Wakely]

On Fri, 7 Jan 2022 at 10:26, Martin Jambor wrote:
> I have already missed stuff when grepping because I did not include *.cc
> files and the inconsistency is also just ugly and must be very confusing
> to anyone who encounters it for the first time.

Yes, and it affects tooling like syntax highlighting and indenting
rules in editors. I think that's one of the strongest arguments in
favour of renaming them.

Apart from that, I don't have any strong opinion either way (libstdc++
has always used .cc and I rarely touch the rest of the compiler).