13 #ifndef SHIFTSOLVER_INCLUDED 
   14 #define SHIFTSOLVER_INCLUDED 
   40     std::valarray<Field>& solution,
 
   41     std::valarray<double> 
shift,
 
   43     int& Nconv, 
double& diff) = 0;
 
void set_parameter_verboselevel(const Bridge::VerboseLevel vl)
 
Container of Field-type object. 
 
Shiftsolver class as an abstract base class for multi-shift solvers. 
 
virtual void set_parameters(const Parameters &)=0
 
virtual void solve(std::valarray< Field > &solution, std::valarray< double > shift, const Field &source, int &Nconv, double &diff)=0
 
Common parameter class: provides parameters as singleton. 
 
Bridge::VerboseLevel m_vl