On 20 April 2011 19:23, Jeff Flinn <TriumphSprint2000@hotmail.com> wrote:

simone pilozzi wrote:

Dear Users,
I am using a pointer to a function member with the std::transform alorithm.
The class is a QuantLib class called DayCounter and the method is called yearFraction
and takes in two mandatory dates and two optionals to return the corresponding year fraction.
/yearFraction ( QuantLib::Date t1,QuantLib::Date t2,QuantLib::Date t3 = Date(),QuantLib::Date t4=Date())/
Now I tried to fill a vector called yearfracs in this way
boost::shared_ptr<QuantLib::DayCounter> dc( new QuantLib::ActualActual);

QuantLib::Date t = todaysDate()

std::vector<QuantLib::Time> yearfracs;

std::transform(subsample.begin(),subsample.end(),

yearfracs.begin(),boost::bind(&QuantLib::ActualActual::yearFraction,&dc,t,_2))

Assuming you want each subsample item to be pass as t2 :

boost::bind
(&QuantLib::ActualActual::yearFraction
,&dc
,t
,_1
, QuantLib::Date()
, QuantLib::Date())

You need the _1, as you are generating a unary function object. IIRC, you need to specify the default args.

Also I assume yearFracs.size() >= subsamble.size()?

Jeff

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