From e59cf7b09e7388d369e8d2bf73501cde79c28708 Mon Sep 17 00:00:00 2001
From: Toni Uhlig <matzeton@googlemail.com>
Date: Thu, 8 Apr 2021 16:43:58 +0200
Subject: Squashed 'EASTL/' content from commit fad5471

git-subtree-dir: EASTL
git-subtree-split: fad54717f8e4ebb13b20095da7efd07a53af0f10
---
 include/EASTL/unordered_set.h | 53 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 include/EASTL/unordered_set.h

(limited to 'include/EASTL/unordered_set.h')

diff --git a/include/EASTL/unordered_set.h b/include/EASTL/unordered_set.h
new file mode 100644
index 0000000..ecd7219
--- /dev/null
+++ b/include/EASTL/unordered_set.h
@@ -0,0 +1,53 @@
+///////////////////////////////////////////////////////////////////////////////
+// Copyright (c) Electronic Arts Inc. All rights reserved.
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef EASTL_UNORDERED_SET_H
+#define EASTL_UNORDERED_SET_H
+
+#include <EASTL/internal/config.h>
+#include <EASTL/hash_set.h>
+
+#if defined(EA_PRAGMA_ONCE_SUPPORTED)
+	#pragma once // Some compilers (e.g. VC++) benefit significantly from using this. We've measured 3-4% build speed improvements in apps as a result.
+#endif
+
+namespace eastl
+{
+
+	/// unordered_set 
+	///
+	/// The original TR1 (technical report 1) used "hash_set" to name a hash
+	/// table backed associative container of unique "Key" type objects.  When
+	/// the container was added to the C++11 standard the committee chose the
+	/// name "unordered_set" to clarify that internally the elements are NOT
+	/// sorted in any particular order.  We provide a template alias here to
+	/// ensure feature parity with the original eastl::hash_set.
+	///
+	#if !defined(EA_COMPILER_NO_TEMPLATE_ALIASES)
+		template <typename Value,
+				  typename Hash = eastl::hash<Value>,
+				  typename Predicate = eastl::equal_to<Value>,
+				  typename Allocator = EASTLAllocatorType,
+				  bool bCacheHashCode = false>
+		using unordered_set = hash_set<Value, Hash, Predicate, Allocator, bCacheHashCode>;
+	#endif
+
+    /// unordered_multiset 
+	///
+	/// Similar template alias as "unordered_set" except the contained elements
+	/// need not be unique. See "hash_multiset" for more details. 
+	///
+	#if !defined(EA_COMPILER_NO_TEMPLATE_ALIASES)
+		template <typename Value,
+				  typename Hash = eastl::hash<Value>,
+				  typename Predicate = eastl::equal_to<Value>,
+				  typename Allocator = EASTLAllocatorType,
+				  bool bCacheHashCode = false>
+		using unordered_multiset = hash_multiset<Value, Hash, Predicate, Allocator, bCacheHashCode>;
+	#endif
+
+} // namespace eastl
+
+#endif // Header include guard
+
-- 
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