if (skill_change < 1)

    if (skill_change <= 0)

        if (deg > 0 || fraction > 0 || bonus > 0)
            skill_change = 1;
        else
            skill_change = 0;

        skill_change = (fraction > 0 || deg > 0 || bonus > 0) ? 1 : 0;

            skill_inc *= ((you.strength < 5) ? 5 : you.strength);

            skill_inc *= MAX(5, you.strength);

            skill_inc *= ((you.dex < 5) ? 5 : you.dex);

            skill_inc *= MAX(5, you.dex);

            skill_inc *= ((you.intel < 5) ? 5 : you.intel);

            skill_inc *= MAX(5, you.intel);

    if (you.exp_available < 0)
        you.exp_available = 0;

    you.exp_available = std::max(0, you.exp_available);