Re: [petsc-users] Passing DMMG struct.

On Nov 22, 2010, at 3:23 PM, Chris Bording wrote:

Hi I am trying to pass the DMMG struct to a function similar to what is in the examples.

extern PetscErrorCode Myfunc(DMMG,Vec);

int main(int argc,char **argv) { DMMG *dmmg; ^^^^^^ Note this ...Vec b;

Myfunc(dmmg,b) }

PetscErrorCode Myfunc(DMMG *dmmg, Vec b) ^^^ add this

{ DA da = (DA)dmmg->dm; ..... }

error: cannot convert ‘_n_DMMG**’ to ‘_n_DMMG*’ for argument ‘1’ to ‘PetscErrorCode Myfunc(_n_DMMG*, _p_Vec*)

So how do I pass a DMMG defined structure into my function?

Thanks Chris