SNESGetApplicationContext#

Synopsis#

#include "petscsnes.h"  
PetscErrorCode SNESGetApplicationContext(SNES snes, PeCtx ctx)

Not Collective

Input Parameter#

• snes - SNES context

Output Parameter#

• ctx - user context

Fortran Notes#

This only works when the context is a Fortran derived type (it cannot be a PetscObject) and you must write a Fortran interface definition for this function that tells the Fortran compiler the derived data type that is returned as the ctx argument. For example,

  Interface SNESGetApplicationContext
    Subroutine SNESGetApplicationContext(snes,ctx,ierr)
  #include <petsc/finclude/petscsnes.h>
      use petscsnes
      SNES snes
      type(tUsertype), pointer :: ctx
      PetscErrorCode ierr
    End Subroutine
  End Interface SNESGetApplicationContext

The prototype for ctx must be

  type(tUsertype), pointer :: ctx

See Also#

SNES: Nonlinear Solvers, SNESSetApplicationContext(), SNESSetComputeApplicationContext()

Level#

intermediate

Location#

src/snes/interface/snes.c

Examples#

src/snes/tutorials/ex5f90t.F90
src/snes/tutorials/ex5f90.F90
src/snes/tutorials/ex58.c
src/snes/tutorials/ex73f90t.F90

Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages