Hello, as a preparation for the Google Summer of Code, Tapashree and I started to work on https://gitlab.com/petsc/petsc/-/issues/194 (interfaces for PetscViewerHDF5Write/ReadAttribute()). Preliminary work is in https://gitlab.com/petsc/petsc/-/commits/MarDiehl/194-add-f90-bindings-for-petscviewerhdf5write-readattribute
When working on it, I realized that my understanding how Fortran interfaces are defined in PETSc faded, so I would need some clarifications on the different components. Is our understanding about the content of the ftn-custom folders correct: Do they only exist in the repository, C-code for functions that are not 1-1 translated to Fortran are defined. This includes for example functions having arrays or strings in their arguments. What are the purposes of the files in the ftn-mod folders? Some seem to combine autogenerated modules (e.g. ksp/ftn-mod/petsckspmod.F90), others make overloaded functions available under a common name (e.g. sys/ftn-mod/petscviewer.h90). But what is "/ksp/ftn-mod/petscksp.h90" doing? best regards, Martin and Tapashree -- KU Leuven Department of Computer Science Department of Materials Engineering Celestijnenlaan 200a 3001 Leuven, Belgium
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