jiri/LA_library
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

const version of loopover and grouploopoevr in tensor class

Browse Source
This commit is contained in:
Jiri Pittner
2025-10-23 16:15:42 +02:00
parent cd09d93c27
commit 3baced9adb
2 changed files with 94 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tensor.h
View File

@@ -49,8 +49,6 @@
//@@@conversions to/from fourindex, optional negarive rande for beta spin handling
//@@@ optional distinguish covariant and contravariant check in contraction
//
//maybe const loopover and grouploopover to avoid problems with shallowly copied tensors
//
//@@@?general permutation of individual indices - check the indices in sym groups remain adjacent, calculate result's shape, loopover the result and permute using unwind_callback
//
//
@@ -224,7 +222,9 @@ public:
inline void randomize(const typename LA_traits<T>::normtype &x) {data.randomize(x);};
void loopover(void (*callback)(const SUPERINDEX &, T *)); //loop over all elements
void constloopover(void (*callback)(const SUPERINDEX &, const T *)) const; //loop over all elements
void grouploopover(void (*callback)(const GROUPINDEX &, T *)); //loop over all elements disregarding the internal structure of index groups
void constgrouploopover(void (*callback)(const GROUPINDEX &, const T *)) const; //loop over all elements disregarding the internal structure of index groups
Tensor permute_index_groups(const NRPerm<int> &p) const; //rearrange the tensor storage permuting index groups as a whole
Tensor unwind_index(int group, int index) const; //separate an index from a group and expand it to full range as the least significant one (the leftmost one)