26 . r - the random number generator object
32 PetscErrorCode PetscRandomDestroy(PetscRandom *r)  in PetscRandomDestroy()  argument
35   if (!*r) PetscFunctionReturn(PETSC_SUCCESS);  in PetscRandomDestroy()
36   PetscValidHeaderSpecific(*r, PETSC_RANDOM_CLASSID, 1);  in PetscRandomDestroy()
37   if (--((PetscObject)*r)->refct > 0) {  in PetscRandomDestroy()
38     *r = NULL;  in PetscRandomDestroy()
41   PetscTryTypeMethod(*r, destroy);  in PetscRandomDestroy()
42   PetscCall(PetscHeaderDestroy(r));  in PetscRandomDestroy()
52 . r - The random number generator context
61 PetscErrorCode PetscRandomGetSeed(PetscRandom r, PetscInt64 *seed)  in PetscRandomGetSeed()  argument
64   PetscValidHeaderSpecific(r, PETSC_RANDOM_CLASSID, 1);  in PetscRandomGetSeed()
67     *seed = (PetscInt64)r->seed;  in PetscRandomGetSeed()
78 + r    - The random number generator context
85       PetscRandomSetSeed(r,a positive integer);
86       PetscRandomSeed(r);
89       PetscRandomSeed(r) without a call to PetscRandomSetSeed() re-initializes
95 PetscErrorCode PetscRandomSetSeed(PetscRandom r, PetscInt64 seed)  in PetscRandomSetSeed()  argument
98   PetscValidHeaderSpecific(r, PETSC_RANDOM_CLASSID, 1);  in PetscRandomSetSeed()
99   r->seed = (unsigned long)seed;  in PetscRandomSetSeed()
203 + r      - the random number generator context
214 PetscErrorCode PetscRandomSetOptionsPrefix(PetscRandom r, const char prefix[])  in PetscRandomSetOptionsPrefix()  argument
217   PetscValidHeaderSpecific(r, PETSC_RANDOM_CLASSID, 1);  in PetscRandomSetOptionsPrefix()
218   PetscCall(PetscObjectSetOptionsPrefix((PetscObject)r, prefix));  in PetscRandomSetOptionsPrefix()
323 . r - the random number generator object
343       PetscRandomCreate(PETSC_COMM_SELF,&r);
344       PetscRandomSetType(r,PETSCRAND48);
345       PetscRandomGetValue(r,&value1);
346       PetscRandomGetValueReal(r,&value2);
347       PetscRandomDestroy(&r);
353 PetscErrorCode PetscRandomCreate(MPI_Comm comm, PetscRandom *r)  in PetscRandomCreate()  argument
359   PetscAssertPointer(r, 2);  in PetscRandomCreate()
370   *r = rr;  in PetscRandomCreate()
380 . r - The random number generator context
386       PetscRandomSetSeed(r,a positive integer);
387       PetscRandomSeed(r);
390       PetscRandomSeed(r) without a call to PetscRandomSetSeed() re-initializes
396 PetscErrorCode PetscRandomSeed(PetscRandom r)  in PetscRandomSeed()  argument
399   PetscValidHeaderSpecific(r, PETSC_RANDOM_CLASSID, 1);  in PetscRandomSeed()
400   PetscValidType(r, 1);  in PetscRandomSeed()
402   PetscUseTypeMethod(r, seed);  in PetscRandomSeed()
403   PetscCall(PetscObjectStateIncrease((PetscObject)r));  in PetscRandomSeed()