Merge branch 'barry/2026-01-13/ftn-generation-for-context-functions' into 'main'

Fortran generation of interface definitions for functions that take and return context variables (void *ctx and PetC

Merge branch 'barry/2026-01-13/ftn-generation-for-context-functions' into 'main'

Fortran generation of interface definitions for functions that take and return context variables (void *ctx and PetCtx ctx)

See merge request petsc/petsc!8956

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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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Merge branch 'MarDiehl/use-bool-instead-of-enum' into 'main'

use bool instead of enum

See merge request petsc/petsc!8528

use standard bool instead of enum

PetscBool is equivalent to _Bool/bool in C

For C standards prior to C23, true = 1 and false = 0 are defined in <stdbool.h>.
For C23, true and false are real keywor

use standard bool instead of enum

PetscBool is equivalent to _Bool/bool in C

For C standards prior to C23, true = 1 and false = 0 are defined in <stdbool.h>.
For C23, true and false are real keywords.

The Fortran equivalent is logical(C_BOOL) with C_BOOL from
ISO_C_binding.

The C and the C++ standard do not specify the size of Booleans, but they
typically have a size of 1 Byte with b00000000 for false and b00000001 for true.
When using compilers from the same vendor, it is sane to assume that
_Bool/bool in C and bool in C++ are fully compatible. But that is not
guaranteed by the standards

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ensure that Fortran Bool is interoperable

The kind C_BOOL for logical from ISO_C_binding only defines the size of
the logical as 1 Byte. It does not define which values (bit patterns) are
used to en

ensure that Fortran Bool is interoperable

The kind C_BOOL for logical from ISO_C_binding only defines the size of
the logical as 1 Byte. It does not define which values (bit patterns) are
used to encode true and false. In stdbool.h from C, true is defined as 1
and false as 0, but these values are not guaranteed by the Fortran standard.

There are (at least) two contemporary Fortran compilers that use a
difference convention: Intel Fortran (ifort and ifx) and NVIDIA Fortran
(nvfortran, former PGI). Both represent true as all bits set, i.e. -1 for
a signed integer or 255 for an unsigned integer.

Intel Fortran can be made interoperable with the "-standard-semantics" or
"-fpscomp logicals". The latter is now set by default to ensure
interoperability while avoiding effects such as modified name mangling
rules and performance degradations due to the former.

NVIDIA Fortran can be made interoperable with the "-Munixlogical" flag.
This is set manually in the "linux-cuda-single-cxx" pipeline. This is
now set by default.

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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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some doc/manual page fixes

Merge branch 'stefanozampini/useless-cast' into 'main'

Remove useless cast

See merge request petsc/petsc!7894

Brain dead fixes for useless casts

Merge branch 'jolivet/clang-format-19' into 'main'

clang-format-19

See merge request petsc/petsc!7644

Remove unneeded parentheses

Merge branch 'barry/2024-09-02/rebased-fix-conversion-warnings' into 'main'

Compiler finds (and forbid) casts from higher precision integers to lower

See merge request petsc/petsc!7806

Add to CI compilers flags '-Wconversion', '-Wno-sign-conversion', '-Wno-float-conversion', '-Wno-implicit-float-conversion']

Also fix the code to repository to compile cleanly with these flags in th

Add to CI compilers flags '-Wconversion', '-Wno-sign-conversion', '-Wno-float-conversion', '-Wno-implicit-float-conversion']

Also fix the code to repository to compile cleanly with these flags in the CI

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Merge branch 'barry/2024-07-01/fix-petscoptionsgetviewer' into 'main'

The use case of PetscOptionsGetViewer() has evolved to no longer be the get/restore model

See merge request petsc/petsc!7667

The use case of PetscOptionsGetViewer() has evolved to no longer be the get/restore model

Hence the code needs to be refactored

Introduce PetscCallNull() and PetscCallMPINull() to simplify PETSC_VI

The use case of PetscOptionsGetViewer() has evolved to no longer be the get/restore model

Hence the code needs to be refactored

Introduce PetscCallNull() and PetscCallMPINull() to simplify PETSC_VIEWER_XXXX_() routines

Reported-by: James Wright
Thanks-to: Jeremy L Thompson

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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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All constructors should do PetscAssertPointer on output object

Reported-by: Blaise Bourdin

Constructors should not initialize the output to NULL upon entry, serves no purpose

Fix some formatting i

All constructors should do PetscAssertPointer on output object

Reported-by: Blaise Bourdin

Constructors should not initialize the output to NULL upon entry, serves no purpose

Fix some formatting in constructors

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Merge branch 'barry/2024-05-17/fix-sowing-object-destroy' into 'main'

Sowing bfort generation of XXXDestroy

See merge request petsc/petsc!7559

Update sowing bfort for automatic generation of XXXDestroy() code

Fix some Fortran stub code to work with generation of XXXDestroy()

Add some runtime tests for XXXCreate() calls

Also update sowing

Update sowing bfort for automatic generation of XXXDestroy() code

Fix some Fortran stub code to work with generation of XXXDestroy()

Add some runtime tests for XXXCreate() calls

Also update sowing and fortranimpl.h to use PETSC_NULLPTR instead of NULL

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Merge branch 'barry/2024-04-26/fix-sowing-viewers' into 'main'

Remove manual Fortran stubs for PetscViewer and PetscObject arguments since now handled by sowing

See merge request petsc/petsc!7511

Update to sowing version that supports PetscViewer and PetscObject

Remove manual Fortran stubs for PetscViewer and PetscObject arguments since now handled by sowing

Also handles the passing of null

Update to sowing version that supports PetscViewer and PetscObject

Remove manual Fortran stubs for PetscViewer and PetscObject arguments since now handled by sowing

Also handles the passing of null objects correctly

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Merge branch 'barry/2024-04-13/fix-sowing-strings' into 'main'

Update PETSc to use sowing bfort that handles string arguments and PETSC_NULL_INT

See merge request petsc/petsc!7480

Update source code removing all unneeded /*@C and associated manual stubs and interfaces