1 files changed, 10 insertions, 0 deletions

diff --git a/include/opkele/exception.h b/include/opkele/exception.h
index c5f5811..9fc9bd3 100644
--- a/include/opkele/exception.h
+++ b/include/opkele/exception.h
@@ -207,2 +207,12 @@ namespace opkele {
 
+    /**
+     * not implemented (think pure virtual) member function executed, signfies
+     * programmer error
+     */
+    class not_implemented : public exception {
+        public:
+            not_implemented(OPKELE_E_PARS)
+                : exception(OPKELE_E_CONS) { }
+    };
+
 }