OPIA score toegevoegd aan stats programma

git-svn-id: svn+ssh://gitlab/srv/svn-repos/pdb-redo/trunk@225 a1961a4f-ab94-4bcc-80e8-33b5a54de466

src/Structure.cpp

@@ -352,7 +352,8 @@ string Atom::property<string>(const string& name) const
 template<>
 int Atom::property<int>(const string& name) const
 {
-	return stoi(mImpl->property(name));
+	auto v = mImpl->property(name);
+	return v.empty() ? 0 : stoi(v);
 }
 
 template<>