struct pointer function points to other function of other struct

Question

I was wondering if is possible to point a function of other structure into of a structure:

Example:

typedef struct
{
    int func(int z)
    {
        r         


        

Answer 1

After trying and trying, the solution it was something like this:

Example:

typedef struct 
{
    int a;

    int SomeFunc(int a)
    {
        return a * 4;
    }

} somst;


typedef struct
{
    int a;
    int (*HGetValX)(int);
} hst;


int main()
{
    hst* a;
    hst decfunc; // New instance
    somst b;

    decfunc.HGetValX = (int(*)(int))0x421C10; // memory address, or &b.SomeFunc; | &b.SomeFunc; Produces warnings.
    b.a = 20;

    a = (hst*)&b;


    cout << decfunc.HGetValX(4) << b.SomeFunc(4) << a->a <<  endl;

    return 0;
}

Finding memory address

then the code compiles without warnings, the objective is hook the structure with their functions.