fix generator

motis-project · Jul 18, 2024 · 3fe4f20 · 3fe4f20
1 parent b7f98de
commit 3fe4f20
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/include/utl/generator.h b/include/utl/generator.h
@@ -30,6 +30,9 @@ struct generator {
   ~generator() { h_.destroy(); }
 
   explicit operator bool() {
+    if (h_.done()) {
+      return false;
+    }
     fill();
     return !h_.done();
   }