While the C++ standard does not define any ABI, some implementations (namely GCC and clang) put a lot of effort into maintaining reasonable ABI compatibility. G

While the C++ standard does not define any ABI, some implementations (namely GCC and clang) put a lot of effort into maintaining reasonable ABI compatibility. GCC has only changed ABI twice (afaik) and the second time the only thing that changed was std::string! Nowadays MSVC tries to maintain ABI compatibility too, so we should stop seeing a proliferation of those msvcrXXX dlls. Haiku uses C++ for its OS ABI so it relies quite heavily on the fact that ABI compatibility stays very consistent across compiler versions for example.