P1673R13 `<linalg>`: Linear Algebra
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- Dominant language
- C++
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Description
WG21-P1673R13 <linalg>: Linear Algebra
WG21-P3050R2 Optimize linalg::conjugated For Noncomplex Value Types
WG21-P3222R0 Add Transposed Special Cases For Padded mdspan Layouts
WG21-P3371R5 Make The Rank-1, Rank-2, Rank-k, And Rank-2k Updates Consistent With The BLAS
LWG-4136 Specify behavior of [linalg] Hermitian algorithms on diagonal with nonzero imaginary part
LWG-4137 Fix Mandates, Preconditions, and Complexity elements of [linalg] algorithms
LWG-4302 Problematic vector_sum_of_squares wording
LWG-4315 Insufficient specification of vector_two_norm and matrix_frob_norm
LWG-4514 Missing absolute value of init in vector_two_norm and matrix_frob_norm
Feature-test macro:
#define __cpp_lib_linalg 202511L
My VS-PR-738409 taught the IDE about this new extensionless header.
Note: We are not yet accepting PRs for C++26 features.
Contributor guide
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
The issue names no repository files, tests, or entry points. Start by reviewing the listed WG21 papers and the status of C++26 feature acceptance; completion would require determining the STL scope for , its __cpp_lib_linalg macro, and the associated specification changes before implementation can begin.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100