Merge branch 'MarDiehl/improve-Fortran-examples' into 'main'

Improve Fortran examples

See merge request petsc/petsc!8698

cleanup suggestions by @BarrySmith

also noticed a few stray functions not marked as external and put them
into modules

place all the include statements at the top

Repeated inclusion in multiple location, e.g. at the start of a
module or function is not needed. This becomes clear if all includes are
outside of the ac

place all the include statements at the top

Repeated inclusion in multiple location, e.g. at the start of a
module or function is not needed. This becomes clear if all includes are
outside of the actual Fortran code.
Added regex to check that with the help of @sbalay

show more ...

Merge branch 'barry/2025-07-01/format-fortran-source-fprettify' into 'main'

format fortran source with fprettify

See merge request petsc/petsc!8514

Run fprettify

Merge branch 'tapashree/dmshellsetcreatefielddecomposition' into 'main'

Add Fortran interface for DMShellSetCreateFieldDecomposition

Closes #165

See merge request petsc/petsc!8436

Adds Fortran interface for DMShellSetCreateFieldDecomposition

- Implemented the Fortran interface for the DMShellSetCreateFieldDecomposition function to enable Fortran users to utilize this function

Adds Fortran interface for DMShellSetCreateFieldDecomposition

- Implemented the Fortran interface for the DMShellSetCreateFieldDecomposition function to enable Fortran users to utilize this functionality.This involved adding a new callback field in the callback structure, creating a C wrapper for the Fortran callback, and providing a Fortran-callable function to register the callback.
- Add a simple test to verify the functionality
- Remove unused comments and variables
Fix issue #165.

Add test for DMShellSetCreateFieldDecomposition

Introduce a simple test for DMShellSetCreateFieldDecomposition fortran interface

Set ierr as intent(out) in fortran interface to avoid error

Consistent formatting of files

removed unnecessary comment in zdmshellf.c

TEST block fix for the new test case

remove unused variables in dm/tests/ex54f

remove dm_view unused option from test block

fix interface declaration for myFileDecomp

fix the ierr type errors

fix ierr type error

add newline at end of files

show more ...