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#ifndef G4AnnihilationCrossSection_h
#define G4AnnihilationCrossSection_h

#include "globals.hh"
#include <vector>  
#include "G4VAnnihilationCrossSection.hh"

class G4AnnihilationCrossSection
{
public:
	G4AnnihilationCrossSection();

	G4double GetCrossSection(int aCode, int bCode, G4double S);
private:

	std::vector<G4VAnnihilationCrossSection*> theDataSets;
};

inline G4double G4AnnihilationCrossSection::GetCrossSection(G4int aCode, G4int bCode, G4double S)
{
	G4double result = 0.;
	typedef std::vector<G4VAnnihilationCrossSection*>::iterator iter;
	iter i;
	for(i=theDataSets.begin(); i!=theDataSets.end(); i++)
	{
		if((*i)->InCharge(aCode, bCode))
		{
			result = (*i)->GetXsec(S);
			break;
		}
	}
	return result;
}
#endif