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-rw-r--r--src/common/Containers/Utilities/MapUtils.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/common/Containers/Utilities/MapUtils.h b/src/common/Containers/Utilities/MapUtils.h
index cb76a9d0579..e4cf6309bef 100644
--- a/src/common/Containers/Utilities/MapUtils.h
+++ b/src/common/Containers/Utilities/MapUtils.h
@@ -65,5 +65,16 @@ void MultimapErasePair(M& multimap, typename M::key_type const& key, typename M:
++itr;
}
}
+
+/**
+ * Map key projection for various std::ranges algorithms
+ */
+inline constexpr auto MapKey = []<typename Pair>(Pair&& pair) constexpr -> decltype(auto) { return (std::forward<Pair>(pair).first); /*Parentheses required for decltype(auto) to deduce a reference*/ };
+
+/**
+ * Map value projection for various std::ranges algorithms
+ */
+inline constexpr auto MapValue = []<typename Pair>(Pair&& pair) constexpr -> decltype(auto) { return (std::forward<Pair>(pair).second); /*Parentheses required for decltype(auto) to deduce a reference*/
+};
}
#endif // TRINITYCORE_MAP_UTILS_H