ISGetIndices#

Returns a pointer to the indices. The user should call ISRestoreIndices() after having looked at the indices. The user should NOT change the indices.

Synopsis#

#include "petscis.h" 
PetscErrorCode ISGetIndices(IS is, const PetscInt *ptr[])

Not Collective

Input Parameter#

  • is - the index set

Output Parameter#

  • ptr - the location to put the pointer to the indices

Fortran Notes#

ISGetIndices() Fortran binding is deprecated (since PETSc 3.19), use ISGetIndicesF90()

See Also#

IS, ISRestoreIndices(), ISGetIndicesF90()

Level#

intermediate

Location#

src/vec/is/is/interface/index.c

Examples#

src/ksp/ksp/tutorials/ex71.c
src/ksp/ksp/tutorials/ex87.c
src/dm/tutorials/ex22.c
src/tao/tutorials/ex3.c
src/snes/tutorials/ex56.c
src/dm/impls/plex/tutorials/ex10.c
src/snes/tutorials/ex77.c
src/ksp/ksp/tutorials/ex76.c
src/snes/tutorials/ex13.c
src/dm/tutorials/swarm_ex3.c

Implementations#

ISGetIndices_Block() in src/vec/is/is/impls/block/block.c
ISGetIndices_General() in src/vec/is/is/impls/general/general.c
ISGetIndices_Stride() in src/vec/is/is/impls/stride/stride.c


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