nanovdb: undef CALL_CUBS at the end of MeshToGrid.cuh (#2284)

TopologyBuilder.cuh and PointsToGrid.cuh both undef CALL_CUBS after
their last use so the macro doesn't leak into whatever gets included
next in the same translation unit. MeshToGrid.cuh was missing this.

Signed-off-by: Efty Sifakis <esifakis@nvidia.com>

Author: sifakis

nanovdb/nanovdb/tools/cuda/MeshToGrid.cuh

@@ -1188,6 +1188,13 @@ MeshToGrid<BuildT, ResourceT>::getHandleAndUDF(const GridBufferT& buffer, const
 
 //-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
+// Undefine utility macro for cub functions
+#ifdef CALL_CUBS
+#undef CALL_CUBS
+#endif
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+
 } // namespace tools::cuda
 
 } // namespace nanovdb

pendingchanges/meshtogridcallcubsundef.txt

@@ -0,0 +1,4 @@
+NanoVDB:
+  Bug Fixes:
+  - Fixed tools::cuda::MeshToGrid leaving the CALL_CUBS macro defined past the end of
+    the header, unlike its sibling CUDA tools.