#include <petsc/private/fortranimpl.h>
#include <petscviewer.h>

#if defined(PETSC_HAVE_FORTRAN_CAPS)
  #define petscviewersetformat_        PETSCVIEWERSETFORMAT
  #define petscviewerpushformat_       PETSCVIEWERPUSHFORMAT
  #define petscviewerpopformat_        PETSCVIEWERPOPFORMAT
  #define petscviewerandformatcreate_  PETSCVIEWERANDFORMATCREATE
  #define petscviewerandformatdestroy_ PETSCVIEWERANDFORMATDESTROY
  #define petscviewergetsubviewer_     PETSCVIEWERGETSUBVIEWER
  #define petscviewerrestoresubviewer_ PETSCVIEWERRESTORESUBVIEWER
  #define petscviewerflush_            PETSCVIEWERFLUSH
#elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE)
  #define petscviewersetformat_        petscviewersetformat
  #define petscviewerpushformat_       petscviewerpushformat
  #define petscviewerpopformat_        petscviewerpopformat
  #define petscviewerandformatcreate_  petscviewerandformatcreate
  #define petscviewerandformatdestroy_ petscviewerandformatdestroy
  #define petscviewergetsubviewer_     petscviewergetsubviewer
  #define petscviewerrestoresubviewer_ petscviewerrestoresubviewer
  #define petscviewerflush_            petscviewerflush
#endif

PETSC_EXTERN void petscviewerflush_(PetscViewer *viewer, int *ierr)
{
  PetscViewer v;
  PetscPatchDefaultViewers_Fortran(viewer, v);
  *ierr = PetscViewerFlush(v);
}

PETSC_EXTERN void petscviewergetsubviewer_(PetscViewer *vin, MPI_Fint *comm, PetscViewer *outviewer, PetscErrorCode *ierr)
{
  PetscViewer v;
  PetscPatchDefaultViewers_Fortran(vin, v);
  *ierr = PetscViewerGetSubViewer(v, MPI_Comm_f2c(*(comm)), outviewer);
}

PETSC_EXTERN void petscviewerrestoresubviewer_(PetscViewer *vin, MPI_Fint *comm, PetscViewer *outviewer, PetscErrorCode *ierr)
{
  PetscViewer v;
  PetscPatchDefaultViewers_Fortran(vin, v);
  *ierr = PetscViewerRestoreSubViewer(v, MPI_Comm_f2c(*(comm)), outviewer);
}

PETSC_EXTERN void petscviewerandformatcreate_(PetscViewer *vin, PetscViewerFormat *format, PetscViewerAndFormat **vf, PetscErrorCode *ierr)
{
  PetscViewer v;
  PetscPatchDefaultViewers_Fortran(vin, v);
  *ierr = PetscViewerAndFormatCreate(v, *format, vf);
}

PETSC_EXTERN void petscviewerandformatdestroy_(PetscViewerAndFormat **vf, PetscErrorCode *ierr)
{
  *ierr = PetscViewerAndFormatDestroy(vf);
}

PETSC_EXTERN void petscviewerpushformat_(PetscViewer *vin, PetscViewerFormat *format, PetscErrorCode *ierr)
{
  PetscViewer v;
  PetscPatchDefaultViewers_Fortran(vin, v);
  *ierr = PetscViewerPushFormat(v, *format);
}

PETSC_EXTERN void petscviewerpopformat_(PetscViewer *vin, PetscErrorCode *ierr)
{
  PetscViewer v;
  PetscPatchDefaultViewers_Fortran(vin, v);
  *ierr = PetscViewerPopFormat(v);
}