int num_spells = 0;
    for (int i = 0; i < SPELLBOOK_SIZE; num_spells++) 
    {
        if (is_valid_spell_in_book(type, i))
            ++num_spells;
        else
            break;
    }
    return num_spells;

    int nspel = 0;
    while (nspel < SPELLBOOK_SIZE && is_valid_spell_in_book(type, nspel))
        ++nspel;
    return (nspel);

    if (wielded && rod.plus == rod.plus2 && is_resting())
        stop_running();

    if (wielded && rod.plus == rod.plus2)
    {
        mpr("Your rod has recharged.");
        if (is_resting())
            stop_running();
    }