ITensor / ITensor/BlockSparseArrays.jl
[BUG] Mixed scalar and block indexing is broken
Open
Nobody has claimed this yet.
bug
- Dominant language
- Julia
- Stars
- 3
- Forks
- 3
- Avg merge
- 14m
- Merged PRs (30d)
- 3
Description
These slicing operations are broken:
using BlockArrays: Block
using BlockSparseArrays: BlockSparseArray
a = BlockSparseArray{Float64}([2, 2], [2, 2])
a[1, Block(1)]
a[1, Block.(1:2)]
however the following appear to work:
a[1:1, Block(1)]
a[1:1, Block.(1:2)]
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the two failing indexing expressions and comparing them with the working range-based expressions in the issue. Trace the BlockSparseArray indexing entry point and determine the intended result for mixed scalar and block indexing; done means the scalar forms behave consistently with the corresponding range forms.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- data
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100