[Quantlib-dev] Curve serialisation

[R S <raj...@ho...>]

As advised here
http://quantlib.10058.n7.nabble.com/How-to-serialize-an-object-in-Quantlibxl-td763.html

I am attempting to save date and rates from my curve in order to reconstruct it (avoid bootstrap)

I am taking a pre-canned example with deposit and swap helpers

    rates.push_back(0.0382);       qlperiods.push_back(5 * Days);
    rates.push_back(0.0372);       qlperiods.push_back(1 * Months);
    rates.push_back(0.037125);   qlperiods.push_back(2 * Years);

(I have more but I have narrowed it to these to keep it simple)

First two go into building DepositRateHelper and the last one, SwapRateHelper

I then construct a PiecewiseYieldCurve<Discount, LogLinear>

When I try to print the dates and rates from. this. depoSwap curve

   vector<Date> curvedates = depoSwapTermStructure->dates();
   vector<Real> curverates = depoSwapTermStructure->data();

   vector<Real>::iterator ri = curverates.begin();
   for (vector<Date>::iterator it = curvedates.begin(); it != curvedates.end(); it++) {
       cout << *it << " : " << *ri << endl;
       ri++;
   }

I keep getting this error
terminate called after throwing an instance of 'QuantLib::Error'
what(): more than one instrument with pillar March 19th, 2019

Settlement is set to
    Date settlementDate(1, September, 2010);

The error stops if i comment out
    rates.push_back(0.0382);       qlperiods.push_back(5 * Days);

I am lost as to why



Regards
-RS