function : mpd_qdivint @ (file: "Python-3.3.0a2/Modules/_decimal/libmpdec/mpdecimal.c", line: 3727)~3763
    MPD_NEW_STATIC(r,0,0,0,0);
    uint8_t sign = mpd_sign(a)^mpd_sign(b);

    if (mpd_isspecial(a) || mpd_isspecial(b)) {
        if (mpd_qcheck_nans(q, a, b, ctx, status)) {
            return;
        }
        if (mpd_isinfinite(a) && mpd_isinfinite(b)) {
            mpd_seterror(q, MPD_Invalid_operation, status);
            return;
        }
        if (mpd_isinfinite(a)) {
            mpd_setspecial(q, sign, MPD_INF);
            return;
        }
        if (mpd_isinfinite(b)) {
            _settriple(q, sign, 0, 0);
            return;
        }
        /* debug */
        abort(); /* GCOV_NOT_REACHED */
    }
    if (mpd_iszerocoeff(b)) {
        if (mpd_iszerocoeff(a)) {
            mpd_seterror(q, MPD_Division_undefined, status);
        }
        else {
            mpd_setspecial(q, sign, MPD_INF);
            *status |= MPD_Division_by_zero;
        }
        return;
    }


    _mpd_qdivmod(q, &r, a, b, ctx, status);
    mpd_del(&r);
    mpd_qfinalize(q, ctx, status);

function : mpd_qrem @ (file: "Python-3.3.0a2/Modules/_decimal/libmpdec/mpdecimal.c", line: 6331)~6361
    MPD_NEW_STATIC(q,0,0,0,0);

    if (mpd_isspecial(a) || mpd_isspecial(b)) {
        if (mpd_qcheck_nans(r, a, b, ctx, status)) {
            return;
        }
        if (mpd_isinfinite(a)) {
            mpd_seterror(r, MPD_Invalid_operation, status);
            return;
        }
        if (mpd_isinfinite(b)) {
            mpd_qcopy(r, a, status);
            mpd_qfinalize(r, ctx, status);
            return;
        }
        /* debug */
        abort(); /* GCOV_NOT_REACHED */
    }
    if (mpd_iszerocoeff(b)) {
        if (mpd_iszerocoeff(a)) {
            mpd_seterror(r, MPD_Division_undefined, status);
        }
        else {
            mpd_seterror(r, MPD_Invalid_operation, status);
        }
        return;
    }

    _mpd_qdivmod(&q, r, a, b, ctx, status);
    mpd_del(&q);
    mpd_qfinalize(r, ctx, status);