Xin Tong <xerox.time.tech@xxxxxxxxx> writes: >> In general, yes. For pure C code, yes. For C++ code, some caveats may >> apply. >> > > This is the reason why gcc contains a c++ library, but no need for C > library ? A C library inherently has lots of system dependencies, like how to do I/O on the system. It's easier to maintain that separately from the compiler. A C++ library does not have those dependencies, because it can simply use the facilities of the C library. Also, a C++ library has some close ties to the compiler, e.g., in how exceptions are implemented and details of things like __is_pod. Also and probably more importantly, historically GCC was developed on systems that have C libraries but don't have C++ libraries. So GCC always needed to provide a C++ library, but rarely needed to provide a C one. > what kind of caveats , like different mangling styles ? That is one, yes. In general the C++ ABI is much more complex and subtle than the C ABI, and there is a correspondingly higher chance of some sort of breakage. That said, it usually does work fine. Ian
