From 31c7e4b15791fc3bd269e2b0fa509fd941b85ea8 Mon Sep 17 00:00:00 2001
From: merry <git@mary.rs>
Date: Wed, 16 Feb 2022 20:23:36 +0000
Subject: [PATCH] elemental: Add std::hash specialization for
 e_elemental_skillmode (#6619)

Required for e_elemental_skillmode to be used as a key in std::unordered_map.
See also #6591.
---
 src/map/elemental.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/map/elemental.hpp b/src/map/elemental.hpp
index fdd5047aae..7c91ef9540 100644
--- a/src/map/elemental.hpp
+++ b/src/map/elemental.hpp
@@ -26,6 +26,14 @@ enum e_elemental_skillmode : uint8 {
 	EL_SKILLMODE_AGGRESSIVE = 0x4,
 };
 
+#if __cplusplus < 201402L
+namespace std {
+	template <> struct hash<e_elemental_skillmode> {
+		size_t operator() (const e_elemental_skillmode& t) const { return size_t(t); }
+	};
+}
+#endif
+
 ///Enum of Elemental ID
 enum elemental_elementalid  : uint16 {
 	// Sorcerer's Elementals