Parameters assignment with default values for a function

Question

I have thread spawning function which accepts many parameters which have default values in the declaration.

int spawn( funcptr func, void arg = 0,int grp_id = 1,const charthreadname);

I want to initialize first parameter func and the last parameter thread name and remaining variables assigned their default values.

spawn( myfunc,"My Thread");

How can I do this.

Answer 1

You can't.

Other languages support things like spawn(myfunc, , , "MyThread"), but not C++.

Instead, just overload it to your liking:

inline int spawn( funcptr func, const char*threadname) {
    return spawn(func, 0, 1, threadname);
}