> By the way, if I have some C files and some C++ files. How can I put
them together in a project?
> Should I just name them with .cpp extension?
If you want to mix languages, just use C as normal, but for the C++
files, use a prototype that has extern "C" before the functions, for
example
foo.c: int foo(int x, int y) { ..... }
bar.cpp: extern "C" int foo(int x, int y); void bar() { foo(1, 2); }
The 'extern "C"' on the prototype tells C++ that the external function
was compiled in C, so it doesn't have parameter information encoded in
its name. This will make C++ generate a reference to just the function
name, not an expanded name that includes type information.
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