Re: executable crashing at runtime

Ok, so I've finally gotten this down to as minimalist as possible and
3 files. Tighten it any more and the problem disappears.

*** main.cpp ***

#include <Aw.h>
#include <string>
#include <iostream>
#include <map>
#include <vector>

using namespace std;

class aw_funcs {
public:
    aw_funcs() {
        cout << "initialising map begin" << endl;
        obj_move_amounts.insert(make_pair('x', 0));
        cout << "initialising map 1" << endl;
        obj_move_amounts.insert(make_pair('y', 0));
        cout << "initialising map 2" << endl;
        obj_move_amounts.insert(make_pair('z', 0));
        cout << "initialising map end" << endl;
    }
private:
    map<int, int> hud_sessions;
    map<char, int> obj_move_amounts;
    vector<int> obj_ids;
    int sequence[3][3];
};

#include "custom.h"

int main(int argc, char* argv[]) {
    aw_funcs awf;
}

It's active worlds sdk work that I'm doing, so that's what the <Aw.h>
file is, it can be downloaded and perused from here,
http://objects.activeworlds.com/downloads/awsdk77.zip

custom.h

#ifndef CUSTOM_H_
#define CUSTOM_H_

#include <string>
#include <map>
#include <vector>

void _set_coords(std::vector<std::string>, std::map<char, int>&
amounts);

#endif /* CUSTOM_H_ */

custom.cpp

#include "custom.h"

using namespace std;

void _set_coords(vector<string>, map<char, int>& amounts) {
// amounts['x'] = 0;
    amounts.insert(make_pair('x', 0));
}

So, within that code, the things that make it not crash, is within
_set_coords, have the map not do anything to it's members. Or,
comment out <Aw.h>. Now, I need to have that included, so that's not
an option, but also, for how I'm using the program, I need the
_set_coords function as well. Also, if I get rid of custom.h and
custom.cpp, and bring the _set_coords function into the main.cpp file,
it also doesn't crash, but again, this isn't really an option.

Can anyone point me to where this is going wrong, I really am stumped.