libraries
• ccall((:foo, “lib”), RetType, (xType, yType, …), x, y, …) • If “lib” is omitted default is libjulia • e.g. call((:time, “libc”), Int32, () );
Julia calls other languages via various modules • Python : PyCall • C++ : Cxx • R : Rcall, RIF • Java : JavaCall The most utilised, at present, is PyCall