Virtual destrcutor

11 years ago · 6080436e8b
parent 8e9a7abeb9
commit 6080436e8b
1 changed files with 1 additions and 0 deletions
--- a/include/c11log/formatter.h
+++ b/include/c11log/formatter.h
@ -6,6 +6,7 @@ namespace c11log
 class formatter
 {
 public:
+    virtual formatter() {}
    virtual void format(details::log_msg& msg) = 0;
 };
 }