[detrino]

Perhaps its more fair to C to consider handle to be an opaque type like C#/C++. In that case the acquire block can be rewritten:

    handle a, b, c;
    if (!aquire_handle(&a, 0)) goto fail1;
    if (!aquire_handle(&b, 1)) goto fail2;
    if (!aquire_handle(&c, 2)) goto fail3;