Also, most of what? Besides OSs, tiny tools, DBs and embedded, C is not used all that much. Where truly high performance is required, the de facto language of c

Also, most of what? Besides OSs, tiny tools, DBs and embedded, C is not used all that much. Where truly high performance is required, the de facto language of choice is C++ (see e.g. browsers) and business applications (which are the most numerous) are definitely not written in C in most cases.