tensor_signature.hpp

 
#ifndef EXATN_NUMERICS_TENSOR_SIGNATURE_HPP_
#define EXATN_NUMERICS_TENSOR_SIGNATURE_HPP_
 
#include "tensor_basic.hpp"
#include "spaces.hpp"
 
#include <utility>
#include <initializer_list>
#include <vector>
 
#include <iostream>
#include <fstream>
 
namespace exatn{
 
namespace numerics{
 
class TensorSignature{
public:
 
 TensorSignature(std::initializer_list<std::pair<SpaceId,SubspaceId>> subspaces);
 TensorSignature(const std::vector<std::pair<SpaceId,SubspaceId>> & subspaces);
 TensorSignature(unsigned int rank);
 TensorSignature();
 
 TensorSignature(const TensorSignature & tens_signature) = default;
 TensorSignature & operator=(const TensorSignature & tens_signature) = default;
 TensorSignature(TensorSignature && tens_signature) noexcept = default;
 TensorSignature & operator=(TensorSignature && tens_signature) noexcept = default;
 virtual ~TensorSignature() = default;
 
 void printIt() const;
 void printItFile(std::ofstream & output_file) const;
 
 unsigned int getRank() const;
 
 SpaceId getDimSpaceId(unsigned int dim_id) const;
 SubspaceId getDimSubspaceId(unsigned int dim_id) const;
 std::pair<SpaceId,SubspaceId> getDimSpaceAttr(unsigned int dim_id) const;
 
 bool isCongruentTo(const TensorSignature & another) const;
 
 void resetDimension(unsigned int dim_id, std::pair<SpaceId,SubspaceId> subspace);
 
 void deleteDimension(unsigned int dim_id);
 
 void appendDimension(std::pair<SpaceId,SubspaceId> subspace = {SOME_SPACE,0});
 
private:
 
 std::vector<std::pair<SpaceId,SubspaceId>> subspaces_; //tensor signature
};
 
} //namespace numerics
 
} //namespace exatn
 
#endif //EXATN_NUMERICS_TENSOR_SIGNATURE_HPP_