Comment C++ is the only logically option (Score 5, Informative) 407
C++ is still very much a living, actively developed language. There's a lot of people using it for modern projects. It's well supported under pretty much all modern operating systems & you have excellent tools available under Linux.
There's not a lot of reason to pick up Objective C unless you plan on targeting Apple. It's pretty much a dead language everywhere else, outside of a few niche projects.