Fix empty Tridiagonal broadcast
#1324
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jishnub
added
arrays
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #1324 +/- ##
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+ Coverage 93.73% 93.74% +0.01%
==========================================
Files 34 34
Lines 15750 15750
==========================================
+ Hits 14763 14765 +2
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dkarrasch
approved these changes
Apr 30, 2025
jishnub
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that referenced
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May 12, 2025
Fixes
```julia
julia> T = Tridiagonal(1:0, 1:0, 1:0)
0×0 Tridiagonal{Int64, UnitRange{Int64}}
julia> T .+ T
ERROR: ArgumentError: invalid GenericMemory size: the number of elements is either negative or too large for system address width
```
After this,
```julia
julia> T .+ T
0×0 Tridiagonal{Int64, Vector{Int64}}
```
The changes are minor, but the largish diff is because of adding a loop
to the tests, and additional indentation as a consequence.
(cherry picked from commit dccd6f8)
jishnub
added a commit
that referenced
this pull request
May 26, 2025
Backported PRs: - [x] #1209 <!-- Remove `LinearAlgebra` qualifications in `cholesky.jl` --> - [x] #1230 <!-- Avoid materializing `diag` in `Diagonal` `kron` --> - [x] #1240 <!-- Reduce `stable_muladdmul` branches in `generic matvecmul!` --> - [x] #1247 <!-- fix dispatch to herk --> - [x] #1255 <!-- use smaller matrix size in `peakflops` on 32-bit --> - [x] #1310 <!-- Only `@noinline` error path in `matmul_size_check` --> - [x] #1267 <!-- Refine column ranges in `_isbanded_impl` --> - [x] #1320 <!-- Copy matrices in `triu`/`tril` if no zero exists for the `eltype` --> - [x] #1324 <!-- Fix empty `Tridiagonal` broadcast --> - [x] #1327 <!-- `iszero` check in hessenberg setindex --> - [x] #1326 <!-- Fix multiplication with empty `HessenbergQ` --> - [x] #1332 <!-- Unwrap triangular matrices in broadcast --> - [x] #1337 <!-- Change `1:size` to `axes` in bidiag mul --> - [x] #1342 <!-- `Char` uplo in `Bidiagonal` constructor --> - [x] #1344 <!-- Update the docstring of ldiv! --> - [x] #1335 <!-- Test: prune old LA based on ENV variable --> - [x] #1346 <!-- Fix scaling unit triangular matrices --> - [x] #1355 <!-- Add compat notice for `diagview` --> - [x] #1349 <!-- Prune `LinearAlgebra` module in ambiguity test --> Contains multiple commits, manual intervention needed: - [x] #1238 <!-- Ensure positive-definite matrix in lapack posv test --> - [x] #1298 <!-- Add `diagm` example --> - [x] #1312 <!-- WIP: Try use method deletion instead of custom sysimage --> - [x] #1333 <!-- Make `fillstored!` public --> - [x] #1331 <!-- Document SingularException throw for inv(::AbstractMatrix) --> - [x] #1350 <!-- Fix copy for partly initialized unit triangular --> Non-merged PRs with backport label: - [x] #1352 <!-- log for dense diagonal matrix with negative elements --> - [ ] #1305 <!-- Bounds-checking in triangular indexing branches --> --------- Co-authored-by: Mateus Araújo <[email protected]> Co-authored-by: Jeff Bezanson <[email protected]> Co-authored-by: Steven G. Johnson <[email protected]> Co-authored-by: WalterMadelim <[email protected]> Co-authored-by: Kristoffer Carlsson <[email protected]> Co-authored-by: Daniel Karrasch <[email protected]> Co-authored-by: Michael Abbott <[email protected]>
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Fixes
After this,
The changes are minor, but the largish diff is because of adding a loop to the tests, and additional indentation as a consequence.