petsc-3.11.4 2019-09-28
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ISIdentity

Determines whether index set is the identity mapping.

Synopsis

#include "petscis.h" 
PetscErrorCode  ISIdentity(IS is,PetscBool  *ident)
Collective on IS

Input Parmeters

is -the index set

Output Parameters

ident -PETSC_TRUE if an identity, else PETSC_FALSE

See Also

ISSetIdentity()

Level

intermediate

Location

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

Implementations

ISIdentity_Block in src/vec/is/is/impls/block/block.c
ISIdentity_General in src/vec/is/is/impls/general/general.c
ISIdentity_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