[harry8]

The problem is the one you state.

You have to use a subset of c++. Nobody agrees what that subset is. You have to be super-vigilant in code review. Features invite their use.

It's the lack of features in c that make it attractive. No magic. You want an object or a virtual, code it up if you really mean it is not just a keyword. You take responsibility for all the code running.

Every time I've cut a tonne of latency from a trading engine it's that. People relying on library and compiler without taking responsibility for it. STL is great. Except if you're actually performance critical, when you can beat it easily by solving your problem, not someone else's solution for everyone's possible similar problem.