Q:

Is it true that all c libraries can be used in c++?

Quite a newbie question as is.

A:

Yes. There is no reason you cannot use C libraries in C++. Things change if you want to compile C in a C++ compiler. The C ABI is fully supported from C++, however things are not necessarily so neat from an API perspective. Certain C additions such as restrict are not in the C++ standard, and must be dealt with carefully.

