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-rw-r--r--src/BlockState.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/BlockState.h b/src/BlockState.h
index 3b0575f0e..ab451236b 100644
--- a/src/BlockState.h
+++ b/src/BlockState.h
@@ -52,6 +52,9 @@ public:
(it's possible to erase a key from aCopyFrom by setting it to empty string in aAdditionalKeysAndValues). */
BlockState(const BlockState & aCopyFrom, const std::map<AString, AString> & aAdditionalKeysAndValues);
+ /** Less-than comparison. */
+ bool operator <(const BlockState & aOther) const;
+
/** Fast equality check. */
bool operator ==(const BlockState & aOther) const;