UUID: specialization of std::hash

1 files changed, 14 insertions, 0 deletions

diff --git a/include/erebos/uuid.h b/include/erebos/uuid.h
index e67677a..d3a3510 100644
--- a/include/erebos/uuid.h
+++ b/include/erebos/uuid.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <array>
+#include <cstring>
 #include <optional>
 #include <string>
 
@@ -24,3 +25,16 @@ struct UUID
 };
 
 }
+
+namespace std
+{
+	template<> struct hash<erebos::UUID>
+	{
+		std::size_t operator()(const erebos::UUID & uuid) const noexcept
+		{
+			std::size_t res;
+			std::memcpy(&res, uuid.uuid.data(), sizeof res);
+			return res;
+		}
+	};
+}