PetscObjectsGetObject
Date: 2013-07-02

    function
       petsc-3.4.2 2013-07-02 obj = PetscObjectsGetObject(name)
    %
    %   Given the name of any PetscObject in the PETSc application return the Matlab interface object
    %
    %  Developer notes: I could not figure out a good way to return a character string from a C program
    %  except by listing it explicitly as the returned type
    %  cname is the class name of the object, pobj is the C address of that object
    [cname,dummy,pobj] = calllib('libpetsc', 'PetscObjectsGetObjectMatlab',name,0);
    %  Create the Matlab object based on the class name
    if (pobj == 0)
      obj = 0;
    else
      obj = eval(['Petsc' cname '(' num2str(pobj) ', ''pobj'')']);
    end