Question

I am trying to ensure a function will get called first by the program to ensure the initizilation of critical objects. However, I am confused as to how init_seg is suppose to be getting used/called.

For example, from the documentation at msdn it would seem as if the following would be the first to be called.

#pragma init_seg( ".CRT$XCC" )

static void InitializeStuff()
{
    printf("InitializeStuff\n");
}

However, that does not seem to be the case as that function will just plainly not get called automatically (unless I call it explicitly, of course).

How can I use init_set to ensure a function is called before the rest of my other executing code?

Answer 1

If i have understood it right you place all global variables that you want to be initialized first in the same file as the #pragma init_seg

Example:

#pragma init_seg( ".CRT$XCB" )

class A
{
    A()
    {
        printf("first!\n");
    }
};

static A first;

And make sure you dont place any other globals in that file than the ones you want to initialized first.