involves is const

2009-11-20 14:17:52 +00:00 · 2009-11-20 14:17:52 +00:00 · d234365d53
parent 5f848f272b
commit d234365d53
1 changed files with 1 additions and 1 deletions
--- a/cpp/FactorGraph.h
+++ b/cpp/FactorGraph.h
@ -93,7 +93,7 @@ namespace gtsam {
 		Ordering keys() const;

 		/** Check whether a factor with this variable exists */
-		bool involves(const std::string& key) {
+		bool involves(const std::string& key) const {
 			return !(indices_.find(key)==indices_.end());
 		}