1 files changed, 6 insertions, 0 deletions
diff --git a/error.h b/error.h
index 02aafec..e57267c 100644
--- a/error.h
+++ b/error.h
@@ -17,3 +17,9 @@ public:
 	TypeError(const string &what_arg);
 	TypeError(const char *what_arg);
 };
+
+class FormError : public runtime_error{
+public:
+	FormError(const string &what_arg);
+	FormError(const char *what_arg);
+};