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tensor: name treatment in apply_permutation_algebra

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Jiri Pittner
2025-11-13 17:57:26 +01:00
parent 883b8565c0
commit c7c21ee1a8
3 changed files with 49 additions and 11 deletions
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2
tensor.h
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@@ -225,6 +225,7 @@ public:
NRMat<T> matrix() const {return NRMat<T>(data,data.size()/groupsizes[0],groupsizes[0],0);}; //reinterpret as matrix with column index being the tensor's leftmost index group (typically the unwound single index)
bool is_named() const {if(names.size()==0) return false; if(names.size()!=myrank) laerror("bad number of index names"); return true;};
bool is_uniquely_named() const; //no repeated names
bool is_flat() const {for(int i=0; i<shape.size(); ++i) if(shape[i].number>1) return false; return true;};
bool is_compressed() const {for(int i=0; i<shape.size(); ++i) if(shape[i].number>1&&shape[i].symmetry!=0) return true; return false;};
bool has_symmetry() const {for(int i=0; i<shape.size(); ++i) if(shape[i].symmetry!=0) return true; return false;};
@@ -264,6 +265,7 @@ public:
int findflatindex(const INDEXNAME nam) const;
INDEX findindex(const INDEXNAME nam) const;
NRVec<INDEX> findindexlist(const NRVec<INDEXNAME> &names) const;
void renameindex(const INDEXNAME namfrom, const INDEXNAME nameto) {int i=findflatindex(namfrom); names[i]=nameto;};
inline Tensor& operator+=(const Tensor &rhs)
{