Strange behavior of dirtyPriceFromYield

[Piter Dias-2]

Guys,

I am a bit confused with the dirtyPriceFromYield piece of code bellow.
It seems that even if I set Compounding to Simple the yield will be
compounded coupon by coupon.
Is it make sense?
Why don´t we calculate discount factor always from settlement to couponDate?
This way Compounding setup would be followed and a fixed coupon bond would
have the same behavior of a portfolio of zero coupon ones.

What do you guys thing about?

Regards,

Piter Dias
[hidden email]

//##########################################################################

                if (lastDate == Date()) {
                    // first not-expired coupon
                    if (i > 0) {
                        lastDate = cashflows[i-1]->date();
                    } else {
                        boost::shared_ptr<Coupon> coupon =
                            boost::dynamic_pointer_cast<Coupon>(cashflows[i]);
                        if (coupon)
                            lastDate = coupon->accrualStartDate();
                        else
                            lastDate = couponDate - 1*Years;
                    }
                    discount *= y.discountFactor(settlement,couponDate,
                                                 lastDate, couponDate);
                } else  {
                    discount *= y.discountFactor(lastDate, couponDate);
                }

//##########################################################################



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