chore: propagate blas/base/ndarray/* modernization fixes to sibling packages

[Planeshifter]

Propagating fixes merged to develop between 2026-04-22 17:30 PDT and 2026-04-23 03:05 PDT to sibling packages.

Description

This pull request:

• Propagates two independent mechanical fixes identified across the chore: modernize examples and benchmarks series (16 commits on 2026-04-22/23, representative SHA 1f183560) and the chore: follow-up fixes commit (40db61db) to the sibling packages the source commits did not reach.

blas/base/ndarray/* README identity-check form (eb98b400)

Propagates the ( z === y ) identity-check form introduced in 1f183560 to the five remaining output-ndarray README examples that still use the var bool = ( y === z ); pattern. Affected packages: blas/base/ndarray/caxpy, blas/base/ndarray/zaxpy, blas/base/ndarray/ccopy, blas/base/ndarray/zcopy, and blas/base/ndarray/dswap. Purely mechanical one-line edits with no behavioral changes.

• lib/node_modules/@stdlib/blas/base/ndarray/caxpy/README.md
• lib/node_modules/@stdlib/blas/base/ndarray/zaxpy/README.md
• lib/node_modules/@stdlib/blas/base/ndarray/ccopy/README.md
• lib/node_modules/@stdlib/blas/base/ndarray/zcopy/README.md
• lib/node_modules/@stdlib/blas/base/ndarray/dswap/README.md

blas/base/ndarray/*axpy scalar2ndarray test modernization (03235e5c)

Propagates the modernization from commit 1f183560 to the test/test.js files missed in the original series: blas/base/ndarray/{daxpy,saxpy,caxpy,zaxpy,gaxpy}/test/test.js. Each file is updated to import scalar2ndarray from ndarray/from-scalar (top-level) instead of the deprecated ndarray/base/from-scalar, and to call it with the options-object form scalar2ndarray( val, { 'dtype': '...' } ) matching the dtype used by the respective package. Behavior is preserved because ndarray/from-scalar defaults to row-major order and alpha is consumed as an ndarray throughout.

• lib/node_modules/@stdlib/blas/base/ndarray/daxpy/test/test.js (float64)
• lib/node_modules/@stdlib/blas/base/ndarray/saxpy/test/test.js (float32)
• lib/node_modules/@stdlib/blas/base/ndarray/caxpy/test/test.js (complex64)
• lib/node_modules/@stdlib/blas/base/ndarray/zaxpy/test/test.js (complex128)
• lib/node_modules/@stdlib/blas/base/ndarray/gaxpy/test/test.js (generic)

Related Issues

No.

Questions

No.

Other

Validation

• Pattern search scoped to blas/base/ndarray/* siblings under the source commits' namespace; no wider sweep.
• Two independent opus validation agents each confirmed every target site has the defect and the source-commit fix applies. No needs-human flags.
• Adaptation agent confirmed self-containment: no package.json updates required (the modernized module is already transitively present via each package's examples/index.js and benchmark/benchmark.js).
• Sonnet style-consistency agent matched the multi-line options-object form ({\n\t\t'dtype': '...'\n\t}) against modernized sibling tests (blas/ext/base/ndarray/dsort, dsortins, dsorthp) and confirmed the README ( z === y ) wording matches scopy, dcopy, daxpy, saxpy.
• Syntax check (node --check) passed on all five modernized test files.

Deliberately excluded

• The broader "modernize ndarray construction via @stdlib/ndarray/vector/<dtype> instead of @stdlib/ndarray/base/ctor" pattern (1,250+ hits repo-wide, 5,700+ hits for the companion @stdlib/random/array/* pattern). These are adaptive transformations whose per-site tailoring (complex vs. float buffers, REPL alias rewrites, docs type signatures) is outside the "direct analog, self-contained" bar for this run.
• The stale /* eslint-disable space-in-parens */ directive removed by 40db61db: cosmetic-only, not user-visible, excluded per the HIGH-SIGNAL filter.
• Sites where cross-package changes would be needed.

Checklist

• Read, understood, and followed the contributing guidelines.

AI Assistance

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

This PR was authored by Claude Code as part of an automated fix-propagation routine. Source-commit pattern extraction, candidate-site enumeration, independent validation, and style-consistency review were all run as sub-agent passes; every proposed patch was cross-verified by two independent opus agents before being applied. A human maintainer will audit before promotion out of draft.

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Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
blas/base/ndarray/caxpy	$\color{green}121/121$ $\color{green}+100.00%$	$\color{green}3/3$ $\color{green}+100.00%$	$\color{green}1/1$ $\color{green}+100.00%$	$\color{green}121/121$ $\color{green}+100.00%$
blas/base/ndarray/ccopy	$\color{green}107/107$ $\color{green}+100.00%$	$\color{green}3/3$ $\color{green}+100.00%$	$\color{green}1/1$ $\color{green}+100.00%$	$\color{green}107/107$ $\color{green}+100.00%$
blas/base/ndarray/daxpy	$\color{green}119/119$ $\color{green}+100.00%$	$\color{green}3/3$ $\color{green}+100.00%$	$\color{green}1/1$ $\color{green}+100.00%$	$\color{green}119/119$ $\color{green}+100.00%$
blas/base/ndarray/dswap	$\color{green}117/117$ $\color{green}+100.00%$	$\color{green}3/3$ $\color{green}+100.00%$	$\color{green}1/1$ $\color{green}+100.00%$	$\color{green}117/117$ $\color{green}+100.00%$
blas/base/ndarray/gaxpy	$\color{green}119/119$ $\color{green}+100.00%$	$\color{green}3/3$ $\color{green}+100.00%$	$\color{green}1/1$ $\color{green}+100.00%$	$\color{green}119/119$ $\color{green}+100.00%$
blas/base/ndarray/saxpy	$\color{green}119/119$ $\color{green}+100.00%$	$\color{green}3/3$ $\color{green}+100.00%$	$\color{green}1/1$ $\color{green}+100.00%$	$\color{green}119/119$ $\color{green}+100.00%$
blas/base/ndarray/zaxpy	$\color{green}121/121$ $\color{green}+100.00%$	$\color{green}3/3$ $\color{green}+100.00%$	$\color{green}1/1$ $\color{green}+100.00%$	$\color{green}121/121$ $\color{green}+100.00%$
blas/base/ndarray/zcopy	$\color{green}107/107$ $\color{green}+100.00%$	$\color{green}3/3$ $\color{green}+100.00%$	$\color{green}1/1$ $\color{green}+100.00%$	$\color{green}107/107$ $\color{green}+100.00%$

The above coverage report was generated for the changes in this PR.

[kgryte]

This change is not necessarily needed and was originally omitted on purpose as tests are a bit trickier to uniformly align, especially as we intentionally need lower level interfaces (e.g., for stride and offset manipulation). This change is harmless, however, so I will accept it and similar changes in this PR.