alexs
1
Hi all,
Similar to http://root.cern.ch/phpBB2/viewtopic.php?t=7212, I have a problem where I get the error
However, this is the only error I get.
The offending function is in a class implementation file, which is as follows
#include "TF1.h"
class Particle
{
...
void GetDecayTime()
...
};
double Particle::GetDecayTime()
{
double time;
double max = 10.0*this->lifetime;
TF1 *fdecay = new TF1("decay","exp(-1.0*x/[0])",0.0,max,1);
fdecay->SetParameter(0,this->lifetime);
time = fdecay->GetRandom();
delete fdecay;
time = time*(1/(6.582E-25));
return time;
}
It’s not the most difficult code, and it compiles outside of the class, so I am unsure why the function breaks when instanstiated inside a class.
ttfn
Alex
moneta
2
Hi,
your signature for creating the TF1 is not correct, when you use a formula string you don;t have to pass the parameters and you must just do:
TF1 *fdecay = new TF1("decay","exp(-1.0*x/[0])",0.0,max);
Best Regards
Lorenzo