Add optional attribute condition to "copyProperties".

[simgear.git] / simgear / misc / sg_path.hxx

diff --git a/simgear/misc/sg_path.hxx b/simgear/misc/sg_path.hxx
index 6f8968b7d5ffb2db6c66423f7f6225b112e1f367..69dd59442441577b9e3eec73b843ae1febd7fd8c 100644 (file)
--- a/simgear/misc/sg_path.hxx
+++ b/simgear/misc/sg_path.hxx
@@ -166,6 +166,11 @@ public:
      * I.e starts with a directory seperator, or a single character + colon
      */
     bool isAbsolute() const;
+    
+    /**
+     * check for default constructed path
+     */
+    bool isNull() const;
 private:
 
     void fix();