[petsc-users] DASetCoordinates

[Randall Mackie]

Thanks, I appreciate your help!

Randy M.

On Wed, Oct 6, 2010 at 2:24 PM, Jed Brown <jed at 59a2.org> wrote:

> On Wed, Oct 6, 2010 at 23:19, Randall Mackie <rlmackie862 at gmail.com>wrote:
>
>> void PETSC_STDCALL dasetcoords_(DMMG **dmmg, PetscErrorCode *ierr)
>>
>
> This is a pointer-pointer, due to the way Fortran passes parameters.
>
>
>>  {
>>  PetscInt i, nlev;
>>
>>  nlev = DMMGGetLevels(*dmmg);
>>
>
> It has to be dereferenced once to get the thing we usually work with in C.
>
>
>>  printf("The number of levels is %d \n",nlev);
>>
>>  for (i=0; i < nlev; i++){
>>
>>   DA da = (DA)dmmg[i]->dm;
>>
>
> You can write DA da = (DA) (*dmmg)[i]->dm;
>
> Jed
>
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