CarpetLib: Change API to obtain pointer to grid function data

Change the API to obtain a pointer to grid function data:
- Use a function "typed_data_pointer" instead of overloading the ()
  operator (because this looks nicer)
- Don't use a virtual function (because this isn't needed)
- Update all uses

1 files changed, 4 insertions, 3 deletions

diff --git a/Carpet/CarpetInterp/src/interp.cc b/Carpet/CarpetInterp/src/interp.cc
index 2a7a62fdb..864dd85d7 100644
--- a/Carpet/CarpetInterp/src/interp.cc
+++ b/Carpet/CarpetInterp/src/interp.cc
@@ -1706,9 +1706,10 @@ namespace CarpetInterp {
           
           int const gi = CCTK_GroupIndexFromVarI (vi);
           int const vi0 = CCTK_FirstVarIndexI (gi);
-          input_arrays[n] =
-            (*arrdata.AT(gi).AT(m).data.AT(vi-vi0))(my_tl, rl, lc, mglevel)->
-            storage();
+          ggf const *const ff = arrdata.AT(gi).AT(m).data.AT(vi-vi0);
+          void const *const ptr =
+            ff->data_pointer(my_tl, rl, lc, mglevel)->storage();
+          input_arrays[n] = ptr;
         }
       } // for input arrays