PetscObjectDereference#
Indicates to any PetscObject that it is being referenced by one less PetscObject. This decreases the reference count for that object by one.
Synopsis#
#include "petscsys.h"
PetscErrorCode PetscObjectDereference(PetscObject obj)
Collective on obj if reference reaches 0 otherwise Logically Collective
Input Parameter#
obj - the PETSc object; this must be cast with (
PetscObject), for example,PetscObjectDereference((PetscObject)mat);
Notes#
PetscObjectDestroy() sets the obj pointer to NULL after the call, this routine does not.
If obj is NULL this function returns without doing anything.
See Also#
PetscObjectCompose(), PetscObjectReference(), PetscObjectDestroy(), PetscObject
Level#
advanced
Location#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages