1 files changed, 12 insertions, 0 deletions
diff --git a/src/utils.h b/src/utils.h
index bdf7ddc..e44bdf2 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -29,6 +29,18 @@ namespace utils {
         }
     }
 
+    template<typename F, typename T> std::vector<std::shared_ptr<T>> castPtrs(std::vector<std::shared_ptr<F>> from) {
+        std::vector<std::shared_ptr<T>> Ts;
+        for(std::shared_ptr<F> f : from) {
+            std::shared_ptr<T> t = dynamic_pointer_cast<T>(f);
+            if(t) {
+                Ts.push_back(t);
+            }
+        }
+        return Ts;
+    }
+
+
     template<typename Container> std::string join(Container parts, std::string joiner) {
         std::stringstream out;
         bool isFirst = true;