This file is indexed.

/usr/lib/petscdir/3.7.7/x86_64-linux-gnu-real-debug/include/petsc/finclude/petscisdef.h is in libpetsc3.7.7-dbg 3.7.7+dfsg1-2build5.

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!
!
!  Include file for Fortran use of the IS (index set) package in PETSc
!
#if !defined (__PETSCISDEF_H)
#define __PETSCISDEF_H

#include "petsc/finclude/petscsysdef.h"

#if !defined(PETSC_USE_FORTRAN_DATATYPES)
#define IS PetscFortranAddr
#define ISColoring PetscFortranAddr
#define PetscSection PetscFortranAddr
#endif

#define PetscSF PetscFortranAddr
#define PetscLayout PetscFortranAddr

#define ISType PetscEnum
#define ISLocalToGlobalMapping PetscFortranAddr
#define ISGlobalToLocalMappingType PetscEnum
#define ISColoringType PetscEnum

#define ISColoringValue PETSC_IS_COLOR_VALUE_TYPE_F

#define ISGENERAL 'general'
#define ISSTRIDE 'stride'
#define ISBLOCK 'block'
#endif