/* Problem: Inefficient and confusing */
int foo(int bar)
{
        int return_value = 0;
        int doing_okay = 1;
        doing_okay = do_something( bar );
        if (doing_okay) {
                doing_okay = init_stuff();
        } else {
                cleanup_1();
        }
        if (doing_okay) {
                doing_okay = prepare_stuff();
        } else {
                cleanup_2();
        }
        if (doing_okay) {
                return_value = do_the_thing( bar );
        } else {
                cleanup_3();
        }
        return return_value;
}

/* Problem: Getting murdered by PHB's for using goto */
int foo(int bar)
{
        if (!do_something( bar )) {
                goto error_1;
        }
        if (!init_stuff( bar )) {
                goto error_2;
        }
        if (!prepare_stuff( bar )) {
                goto error_3;
        }
        return do_the_thing( bar );
error_1:
    cleanup_1();
        return 0;
error_2:
    cleanup_2();
        return 0;
error_3:
    cleanup_3();
        return 0;
}

/* Problem: Too many nested blocks, horrible */
int foo(int bar)
{
        int return_value = 0;
        if (do_something( bar )) {
                if (init_stuff( bar )) {
                        if (prepare_stuff( bar )) {
                                return_value = do_the_thing( bar );
                        } else {
                                cleanup_3();
                        }
                } else {
                        cleanup_2();
                }
        } else {
              cleanup_1();
        }
        return return_value;
}