Const-ify ProbabilityGrid::ToProto (cartographer-project#238)

SirVer · Apr 25, 2017 · 245e356 · 245e356
1 parent af22dc6
commit 245e356
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cartographer/mapping_2d/probability_grid.h b/cartographer/mapping_2d/probability_grid.h
@@ -171,7 +171,7 @@ class ProbabilityGrid {
     }
   }
 
-  proto::ProbabilityGrid ToProto() {
+  proto::ProbabilityGrid ToProto() const {
     proto::ProbabilityGrid result;
     *result.mutable_limits() = cartographer::mapping_2d::ToProto(limits_);
     result.mutable_cells()->Reserve(cells_.size());