fix Resource class so that you cant cast a string to a Resource

diff --git a/src/Resource.h b/src/Resource.h
index 7d7924943bfb4f9fe15928ef752d5bede98a7df8..e75b87185dbec898bd88519401380373c6f47f72 100644 (file)
--- a/src/Resource.h
+++ b/src/Resource.h
@@ -29,7 +29,7 @@
 
 class Resource {
 public:
-  Resource(const std::string &file);
+  explicit Resource(const std::string &file);
   Resource();
   virtual ~Resource();