Add empty query for signals

2011-08-10 21:30:03 +10:00 · 2011-08-10 21:30:03 +10:00 · ec5e9f6c87
commit ec5e9f6c87
parent 9b049861f1
1 changed files with 5 additions and 0 deletions
--- a/signal.hpp
+++ b/signal.hpp
@ -66,6 +66,11 @@ namespace util {
            unsigned int size (void) const
                { return m_children.size (); }

+
+            bool empty (void) const
+                { return m_children.empty (); }
+
+
            /// Execute all callbacks, ignoring the return parameters. Does not combine results.
            void operator () (Args... tail) {
                for (auto i = m_children.begin (), end = m_children.end (); i != end; ++i)