!
!  Program to test PetscRandom, PetscObjectReference() and other PetscObjectXXX functions.
!
#include <petsc/finclude/petscsys.h>
program main
  use petscsys
  implicit none

  PetscErrorCode ierr
  PetscRandom r, q, r2
  PetscScalar rand
  PetscInt ref

  PetscCallA(PetscInitialize(ierr))

  PetscCallA(PetscRandomCreate(PETSC_COMM_WORLD, r, ierr))
  PetscCallA(PetscRandomCreate(PETSC_COMM_WORLD, r2, ierr))
  PetscCallA(PetscRandomSetFromOptions(r, ierr))
  PetscCallA(PetscRandomGetValue(r, rand, ierr))
  print *, 'Random value:', rand

  PetscCallA(PetscObjectReference(r, ierr))
  PetscCallA(PetscObjectGetReference(r, ref, ierr))
  print *, 'Reference value:', ref
  PetscCallA(PetscObjectDereference(r, ierr))

  PetscCallA(PetscObjectCompose(r, 'test', r2, ierr))
  PetscCallA(PetscObjectQuery(r, 'test', q, ierr))
  PetscCheckA(q == r2, PETSC_COMM_SELF, PETSC_ERR_PLIB, 'Object compose/query failed')

  PetscCallA(PetscRandomDestroy(r, ierr))
  PetscCallA(PetscRandomDestroy(r2, ierr))
  PetscCallA(PetscFinalize(ierr))
end

!
!/*TEST
!
!   test:
!     requires: !complex
!
!TEST*/