petsc-3.9.2 2018-05-20
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PetscObjectQuery

Gets a PETSc object associated with a given object.

Synopsis

#include "petscsys.h"    
PetscErrorCode  PetscObjectQuery(PetscObject obj,const char name[],PetscObject *ptr)
Not Collective

Input Parameters

obj - the PETSc object Thus must be cast with a (PetscObject), for example, PetscObjectCompose((PetscObject)mat,...);
name - name associated with child object
ptr - the other PETSc object associated with the PETSc object, this must be cast with (PetscObject*)

The reference count of neither object is increased in this call

See Also

PetscObjectCompose()

Level

advanced

Location

src/sys/objects/inherit.c

Examples

src/snes/examples/tutorials/ex48.c.html

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