We were missing the manually provided Fortran interface definitions for PetscViewerASCIISynchronizedPrintf()

Reported-by: Randall Mackie

Switch some defined(PETSC_ to PetscDefined(

Merge remote-tracking branch 'origin/release'

Merge branch 'barry/2026-02-14/remove-last-of-source-horizontal-lines' into 'main'

Remove the last of the use of horizontal lines --- as seperators. With modern...

See merge request petsc/petsc!9039

Fix the inconsistent usage of #if [!]defined XXX compared to defined(XXX)

Thanks-to: Pierre Jolivet

An LLM Claude detected the incosnsitency it was not used to remove the inconsistency

CGNS: fix extern function declaration for clanguage=C++

PetscViewerCreate_CGNS needs to be extern "C" to match the declaration
in viewregall.c.

Remove the last of the use of horizontal lines --- as seperators. With modern code development systems they are not needed and just an eye-sore

speaking argument names for manual Fortran interfaces

Names are taken from the manual (following "Get" variant for
Fortran-only "Restore")

- no code exists for DMPlexRestoreFullMeet, so removed it.

speaking argument names for manual Fortran interfaces

Names are taken from the manual (following "Get" variant for
Fortran-only "Restore")

- no code exists for DMPlexRestoreFullMeet, so removed it.
- removed a few remaining F90 suffixes.
- removed 'tmp' argument from PetscViewerBinaryWrite. No idea what it was
used for

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Add automatic generated fortran support for setting and returning contexts

Major cleanup of the code for setting and returning application (previously called user) contexts
- PetscCtx ctx is now t

Add automatic generated fortran support for setting and returning contexts

Major cleanup of the code for setting and returning application (previously called user) contexts
- PetscCtx ctx is now the standard for passing in contexts
- PetscCtxRt ctx is the standard for passing out contexts, including context destroy routines based on PetscCtxDestroyFn

Both of these are typedef to void*

Also removed most use of user and userctx for context arguments now consistently named ctx

Improved documentation on PetscCtx and PetscCtxRt and on how to use contexts (including getting them) from Fortran

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The goal of all the commits in this MR is to unify the destruction of "application" contexts.

This will help with supporting language bindings. For example, for Fortran the application context
would

The goal of all the commits in this MR is to unify the destruction of "application" contexts.

This will help with supporting language bindings. For example, for Fortran the application context
would be a user derived type

Fix prototype of DMShellSetDestroyCtx function argument to use PETSc standard way of doing it with PetscCtxDestroyF.

Also fix PetscViewerGLVisSetFields prototype of destroy function

These two locations were missed when PetscCtxDestroyFn was introduced as the universal function prototype for context destruction in 3.23

Reported-by: Victor Eijkhout

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Fortran: enforce lower case keywords and operators

also fixed occasional capitals in used modules with the help of @prj-

Fortran is always F2003: removed leftovers

remove labeled do loops

labeled do loops confused fprettify, so used it to rectify indentation

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

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Build: print make check command with V=1

checkbadSource: enforce proper style in makefiles

Fix failures in building Matlab interfaces due to different sizes of integer function arguments.

Fix the definition of PetscErrorCodeFn; this reverts API change in !8615

Co-authored-by: Pierre Jolivet <pierre@joliv.et>
Reported-by: Lisandro Dalcin <dalcinl@gmail.com>

PetscViewerGetFormat: add missing check for viewer id

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