# MutantHub mutant #598: Relational operator mutation at descriptor.cpp:438
# Repository: bitcoin/bitcoin @ 1aafd49077041e874d6b5f114927bc37e5b85d71
# File: src/script/descriptor.cpp:438-438
# Review: APPROVED; outcome: KILLED
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -438,1 +438,1 @@
-    bool IsRange() const override { return m_derive != DeriveType::NON_RANGED; }
+    bool IsRange() const override { return m_derive == DeriveType::NON_RANGED; }