Error: Failed to execute MI command:
-var-create - * "&((*(struct foo*)(this)).bar)"
Error message from debugger back end:
-var-create: unable to create variable object

#include <iostream>

// declare base class with scalar, array and virtual function
struct B {
    int         bs;
    char        ba[100];
    virtual int do_something();
};

// define function non-inline
int B::do_something() {
    return bs;
}

// declare derived class with scalar and array
struct D: B {
    int     ds;
    char    da[100];
};

// instantiate a D
D d;

// invoke virtual function
int main() {
    d.do_something();
    return 0;
}