Merge branch 'jolivet/more-petscdefined' into 'main'

Minor housekeeping

See merge request petsc/petsc!9058

Switch some defined(PETSC_ to PetscDefined(

Merge branch 'jolivet/consolidate-options' into 'main'

Consolidate MAT_HERMITIAN and MAT_SYMMETRIC options

See merge request petsc/petsc!8856

MatDiagonalScale(): consolidate test of input Vecs

Merge branch 'jolivet/safeguard-pchpddm-schur-ci' into 'main'

Housekeeping + more safeguards in PCHPDDM

See merge request petsc/petsc!8859

Housekeeping

Merge branch 'barry/2025-10-18/optimize-aij-ops' into 'main'

Refactor handling of diagonal marking in *AIJ and SELL matrices

See merge request petsc/petsc!8797

Optimizations on Seq_[SB]AIJ operations that use MatGetDiagonalMarkers.

- Replace MatMissingDiagonal() and MatMarkDiagonals_SeqXXX() with MatGetDiagonalMarkers_SeqXXX()

- Mat_SeqXXX->diag is not automatically created during MatAssemblyEnd() saving memory and time

- Replace MatMissingDiagonal() and MatMarkDiagonals_SeqXXX() with MatGetDiagonalMarkers_SeqXXX()

- Mat_SeqXXX->diag is not automatically created during MatAssemblyEnd() saving memory and time

- Accessing Mat_SeqXXX->diag now requires the use of MatGetDiagonalMarkers_SeqXXX() except when the current values are known to be correct; for example during numerical factorizations and solves

- Mat_SeqXXX->diag is now never shared among matrices; hence the free_diag flag is gone. That was always a risky proposition since any of the owning matrices could chang the values thus making them incorrect for other owners.

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Merge branch 'jolivet/clang-format-18' into 'main'

clang-format version 18

See merge request petsc/petsc!6902

Remove multiple parentheses and extra semicolon

git grep -l -E "\(\([a-zA-Z0-9_]+\)\(\*[a-zA-Z0-9_]+\)[, )]" | xargs sed -r -i'' 's#\(\(([a-zA-Z0-9_]+)\)\(\*([a-zA-Z0-9_]+)\)([, )])#\(\(\1\)\*\2\3#g

Remove multiple parentheses and extra semicolon

git grep -l -E "\(\([a-zA-Z0-9_]+\)\(\*[a-zA-Z0-9_]+\)[, )]" | xargs sed -r -i'' 's#\(\(([a-zA-Z0-9_]+)\)\(\*([a-zA-Z0-9_]+)\)([, )])#\(\(\1\)\*\2\3#g'
git grep -l -E "Petsc(.)*\(\(\*[a-zA-Z0-9_]*\)," | xargs sed -r -i'' 's#Petsc([a-zA-Z0-9_]*)\(\(\*([a-zA-Z0-9_]*)\), #Petsc\1(*\2, #g'
git grep -l -E "([\!\&\~\*\(]|\)\)|\([^,\*\(]+\**\))\(([a-zA-Z0-9_]+((\.|->)[a-zA-Z0-9_]+|\[[a-zA-Z0-9_ \%\+\*\-]+\])+)\)" | xargs sed -r -i'' 's#([\!\&\~\*\(]|\)\)|\([^,\*\(]+\**\))\(([a-zA-Z0-9_]+((\.|->)[a-zA-Z0-9_]+|\[[a-zA-Z0-9_ \%\+\*\-]+\])+)\)#\1\2#g'

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checkbadSource: rules for PetscFunctionBegin and derivatives

Merge branch 'jolivet/fix-ubsan' into 'main'

Pacify UBSan

See merge request petsc/petsc!7158

Sys: add PetscSafePointerPlusOffset() to pacify UBSan

Merge branch 'jolivet/rm-first-empty-line' into 'main'

Remove first and last empty lines

See merge request petsc/petsc!6892

Remove first and last empty lines

Merge branch 'jolivet/feature-matcreatesubmatrices-rectangular-sbaij' into 'main'

MatCreateSubMatrices: rectangular blocks with SBAIJ

See merge request petsc/petsc!6841

MatCreateSubMatrices: rectangular blocks with SBAIJ

Merge branch 'jacobf/2023-08-09/linter-detect-static-function-candidates' into 'main'

Linter detect possible static functions

See merge request petsc/petsc!6796

Add static to internal functions

Merge branch 'jolivet/housekeeping' into 'main'

Minor housekeeping

See merge request petsc/petsc!6753

No MatDummy in MatCreateSubMatrices_SeqSBAIJ()

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/fix-minor' into 'release'

PCFIELDSPLIT: fix -ksp_view_pre (+ minor typo)

See merge request petsc/petsc!6613

PCFIELDSPLIT: fix -ksp_view_pre (+ minor typo)