Norm.hh

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#ifndef CASM_Norm
#define CASM_Norm
 
#include "casm/clex/Configuration.hh"
#include "casm/clex/Supercell.hh"
#include "casm/misc/cloneable_ptr.hh"
 
namespace CASM {
 
template <typename DataObject>
class Norm {
 public:
  virtual ~Norm() {}
 
  virtual double operator()(const DataObject &obj) const { return 1.0; }
 
  std::unique_ptr<Norm> clone() const {
    return std::unique_ptr<Norm>(this->_clone());
  }
 
 private:
  virtual Norm *_clone() const { return new Norm(*this); }
};
 
class NormPerUnitCell : public Norm<Configuration> {
 public:
  double operator()(const Configuration &config) const override {
    return config.supercell().volume();
  }
 
  std::unique_ptr<NormPerUnitCell> clone() const {
    return notstd::make_unique<NormPerUnitCell>(*this);
  }
 
 private:
  NormPerUnitCell *_clone() const override {
    return new NormPerUnitCell(*this);
  }
};
 
class NormPerSpecies : public Norm<Configuration> {
 public:
  double operator()(const Configuration &config) const override {
    return n_species(config);
  }
 
  std::unique_ptr<NormPerSpecies> clone() const {
    return notstd::make_unique<NormPerSpecies>(*this);
  }
 
 private:
  NormPerSpecies *_clone() const override { return new NormPerSpecies(*this); }
};
 
}  // namespace CASM
 
#endif