See https://petsc.gitlab.io/-/petsc/-/jobs/5739238224/artifacts/public/html/manual/fortran.html#ch-fortran and https://gitlab.com/petsc/petsc/-/merge_requests/7114
> On Dec 12, 2023, at 3:22 PM, Palmer, Bruce J via petsc-users > <petsc-users@mcs.anl.gov> wrote: > > What do you do with something like a void pointer? I’m looking at the > TaoSetObjectiveAndGradient function and it wants to pass a void *ctx pointer. > You can set this to null, but apparently you have to specify the type. What > type should I use? Is there something called PETSC_NULL_VOID or > PETSC_NULL_CONTEXT or do I use something else? > > From: Matthew Knepley <knep...@gmail.com <mailto:knep...@gmail.com>> > Date: Tuesday, December 12, 2023 at 8:33 AM > To: Palmer, Bruce J <bruce.pal...@pnnl.gov <mailto:bruce.pal...@pnnl.gov>> > Cc: petsc-users@mcs.anl.gov <mailto:petsc-users@mcs.anl.gov> > <petsc-users@mcs.anl.gov <mailto:petsc-users@mcs.anl.gov>> > Subject: Re: [petsc-users] Fortran Interface > > Check twice before you click! This email originated from outside PNNL. > > On Tue, Dec 12, 2023 at 11:27 AM Palmer, Bruce J via petsc-users > <petsc-users@mcs.anl.gov <mailto:petsc-users@mcs.anl.gov>> wrote: > Does documentation for the PETSc fortran interface still exist? I looked at > the web pages for 3.20 (petsc.org/release <http://petsc.org/release>) but if > you go under the tab C/Fortran API, only descriptions for the C interface are > there. > > I think after the most recent changes, the interface was supposed to be very > close to C, so we just document the differences on specific pages, and put > the general stuff here: > > https://petsc.org/release/manual/fortran/ > > Thanks, > > Matt > > Bruce Palmer > > > -- > What most experimenters take for granted before they begin their experiments > is infinitely more interesting than any results to which their experiments > lead. > -- Norbert Wiener > > https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
