Julia can call out to C functions[0], but can C functions call into Julia? There are several aspects to this: - Julia cannot generate linkable shared librarie

Julia can call out to C functions[0], but can C functions call into Julia? There are several aspects to this: - Julia cannot generate linkable shared libraries, yet. - There is a fairly small "libjulia" C API (the embedding reference in another comment), but this is a means to interact with/control the program "julia" (for dynamic interop. or IDE use, for example). "libjulia" does not export symbols for arbitrary Julia code. - It is possible to generate a C-callable function pointer from a Julia function at runtime and to pass this into a C routine controlled by Julia (for example, to pass a comparator to a sorting routine, or an objective function to an optimizer).