Merge branch 'barry/2025-07-30/fix-matshellsetoperationarg' into 'main'

Complete usage of PetscVoidFn and PetscErrorCodeFn and introduce PetscFortranCallbackFn

See merge request petsc/petsc!8615

Introduce PetscFortranCallbackFn to be used instead of PetscVoidFn for Fortran callback functions

Also fix incorrect use of SNESFunctionFn and SNESJacobianFn in SNES Fortran manual stub

Change use of void (*)(void) and void (**)(void) in the PETSc API to PetscVoidFn * and PetscVoidFn ** or PetscErrorCodeFn * or PetscErrorCodeFn **

Merge branch 'barry/2025-03-20/minor-fortran-cleanup' into 'main'

Minor cleanup of Fortran binding stuff to simplify future maintainance

See merge request petsc/petsc!8218

Minor cleanup of Fortran binding stuff to simplify future maintainance

There is no distinction between F90 and non-F90 code so combine ftn-custom and f90-custom directories and fortranimpl.h and f90

Minor cleanup of Fortran binding stuff to simplify future maintainance

There is no distinction between F90 and non-F90 code so combine ftn-custom and f90-custom directories and fortranimpl.h and f90impl.h files. Also move uses of f90 to ftn when simple

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Merge branch 'barry/2024-04-29/add-fortran-enums' into 'main'

Major updates to Fortran interface

See merge request petsc/petsc!7517

Fortran 90: fully embrace After 34 years!

- deprecate use of 'F90' in Fortran function names
- use Fortran pointers when appropriate
- the new Fortran API is not backward compatible with previous ve

Fortran 90: fully embrace After 34 years!

- deprecate use of 'F90' in Fortran function names
- use Fortran pointers when appropriate
- the new Fortran API is not backward compatible with previous versions!
- also clean up inconsistent PETSc code detected by new Fortran generation tools
- drop use of bfort
- automatically generate all the Fortran PETSc objects, enums etc from the include files
- generate most of the Fortran interface definitions and functions from the source code
- simplify the number and organization of Fortran modules

Co-authored-by: Jose E. Roman <jroman@dsic.upv.es>

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Merge branch 'barry/2024-05-29/minor-fortran-stub-cleanup' into 'main'

More improvements to Fortran stubs and interfaces

See merge request petsc/petsc!7598

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of PETSC_NULL_INTEGER
Pass arrays (and not scalar values) when the argument is expecting an array; this means replace, for example, the argument v with [v]
Use PetscObjectIsNull(obj) to check if the object is NULL, instead of obj == PETSC_NULL_XXX

The compiler will now automatically prevent you from using the wrong argument type for the first three bullets above
This will also require an update sowing with the new sowing branch this MR is using.

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Merge branch 'barry/2023-11-06/doc-manpage-gen-to-python' into 'main'

Convert make allmanualpages to Python

See merge request petsc/petsc!7005

C functions and doctext comments should not be in Fortran directories include ft-custom

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 remote-tracking branch 'origin/release'

Merge branch 'barry/2023-04-11/run-clang-format-on-ftn-custom/release' into 'release'

Format the ftn-custom files with clang-format. Apparently no particular reason we did not format them initially

Merge branch 'barry/2023-04-11/run-clang-format-on-ftn-custom/release' into 'release'

Format the ftn-custom files with clang-format. Apparently no particular reason we did not format them initially

See merge request petsc/petsc!6310

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Format the ftn-custom files with clang-format. Apparently no particular reason we did not format them initially

Merge branch 'barry/2023-03-08/fix-man-pages-detected-by-lint' into 'main'

Fix many manual pages

See merge request petsc/petsc!6162

Fix manual pages based on reports from Jacob's lint tool

Commit-type: documentation

Merge branch 'jacobf/2022-12-10/petscerrorcode-nodiscard' into 'main'

Feature: Non-discardable PetscErrorCode

See merge request petsc/petsc!5923

Make PetscErrorCode a non-discardable enum

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/fix-strict-prototypes' into 'release'

Fix -Wstrict-prototypes

See merge request petsc/petsc!5808

Fix -Wstrict-prototypes

warning: a function declaration without a prototype is deprecated in all versions of C

Merge branch 'barry/2022-08-23/fix-sys-man' into 'main'

Fix up all manual pages in src/sys directory

See merge request petsc/petsc!5559

Fix up all manual pages in src/sys directory

Commit-type: documentation
/spend 10h