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-rw-r--r--src/entity.hpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/entity.hpp b/src/entity.hpp
index 29777c13..94e6cb62 100644
--- a/src/entity.hpp
+++ b/src/entity.hpp
@@ -30,6 +30,7 @@ struct entity_proto
entity_proto(const entity_proto&);
virtual bool operator==(const entity_proto&) const;
+ bool operator!=(const entity_proto& o) const { return !operator==(o); }
virtual ~entity_proto() noexcept;
entity_type type_of() const noexcept;