Containment measures for ugly sql stuff.

Also made forgetting return value a sin (should've been the case in the first place)

1 files changed, 3 insertions, 0 deletions

diff --git a/signature.cpp b/signature.cpp
index 74c7590..b912198 100644
--- a/signature.cpp
+++ b/signature.cpp
@@ -216,6 +216,9 @@ void signature::dump() const
     if (p) p->dump();
 }
 
+bool signature::valid() const
+{return (bool)p;}
+
 signature signature::clone() const
 {
     return signature(*this);