types/tagged: add not-equal operator

2020-10-21 10:22:51 +10:00 · 2020-10-21 10:22:51 +10:00 · 8111074a44
commit 8111074a44
parent 928e2aa2d5
1 changed files with 14 additions and 0 deletions
--- a/types/tagged.hpp
+++ b/types/tagged.hpp
@ -262,4 +262,18 @@ namespace cruft {
            ) || ...
        );
    }
+
+    template <typename ...ComponentsT>
+    bool operator!= (tagged<ComponentsT...> const &lhs, tagged<ComponentsT...> const &rhs)
+    {
+        if (lhs.tag () != rhs.tag ())
+            return false;
+
+        return (
+            (
+                lhs.template is<ComponentsT> () &&
+                (lhs.template get<ComponentsT> () != rhs.template get<ComponentsT> ())
+            ) || ...
+        );
+    }
 }