1 files changed, 10 insertions, 0 deletions
diff --git a/lib/frame.h b/lib/frame.h
index dfe67c0..5fa6c6b 100644
--- a/lib/frame.h
+++ b/lib/frame.h

@@ -83,6 +83,16 @@ namespace verbly {
      return (id == id_);
    }
+    filter operator!() const
+    {
+      if (!valid_)
+      {
+        throw std::domain_error("Bad access to uninitialized frame");
+      }
+      return (id != id_);
+    }
    // Relationships to other objects
    static const field words;

diff --git a/lib/frame.h b/lib/frame.h index dfe67c0..5fa6c6b 100644 --- a/lib/frame.h +++ b/lib/frame.h
@@ -83,6 +83,16 @@ namespace verbly {
83	return (id == id_);	83	return (id == id_);
84	}	84	}
85		85
		86	filter operator!() const
		87	{
		88	if (!valid_)
		89	{
		90	throw std::domain_error("Bad access to uninitialized frame");
		91	}
		92
		93	return (id != id_);
		94	}
		95
86	// Relationships to other objects	96	// Relationships to other objects
87		97
88	static const field words;	98	static const field words;