From da3fd6d1f9a24f881ef09a170f998b471d054742 Mon Sep 17 00:00:00 2001
From: Egor Yusov <egor.yusov@gmail.com>
Date: Thu, 31 Jan 2019 08:26:41 -0800
Subject: Improved handling unordered_maps

---
 RenderScript/include/EnumMappings.h | 30 +++---------------------------
 1 file changed, 3 insertions(+), 27 deletions(-)

(limited to 'RenderScript/include/EnumMappings.h')

diff --git a/RenderScript/include/EnumMappings.h b/RenderScript/include/EnumMappings.h
index 8bf71b3..7fae1c0 100644
--- a/RenderScript/include/EnumMappings.h
+++ b/RenderScript/include/EnumMappings.h
@@ -23,33 +23,9 @@
 
 #pragma once
 
+#include <unordered_map>
 #include "HashUtils.h"
 
-#define DEFINE_ENUM_HASH(Type)\
-template<>struct hash<Type>                     \
-{                                               \
-    size_t operator()( const Type &x ) const    \
-    {                                           \
-        return hash<int>()(x);                  \
-    }                                           \
-};
-
-namespace std
-{
-    DEFINE_ENUM_HASH( Diligent::RESOURCE_DIMENSION )
-    DEFINE_ENUM_HASH( Diligent::TEXTURE_FORMAT )
-    DEFINE_ENUM_HASH( Diligent::VALUE_TYPE )
-    DEFINE_ENUM_HASH( Diligent::USAGE )
-    // Explicit namespace declaraion is necesseary to avoid 
-    // name conflicts when building for windows store
-    DEFINE_ENUM_HASH( Diligent::BIND_FLAGS )
-    DEFINE_ENUM_HASH( Diligent::CPU_ACCESS_FLAGS )
-    DEFINE_ENUM_HASH( Diligent::COMPARISON_FUNCTION )
-    DEFINE_ENUM_HASH( Diligent::BIND_SHADER_RESOURCES_FLAGS )
-    DEFINE_ENUM_HASH( Diligent::SHADER_TYPE )
-    DEFINE_ENUM_HASH( Diligent::RESOURCE_STATE_TRANSITION_MODE )
-}
-
 namespace Diligent
 {
     template<typename EnumType>
@@ -61,8 +37,8 @@ namespace Diligent
             m_Val2StrMap.insert( std::make_pair( Val, Str ) );
         }
 
-        std::unordered_map< Diligent::HashMapStringKey, EnumType> m_Str2ValMap;
-        std::unordered_map<EnumType, String> m_Val2StrMap;
+        std::unordered_map<HashMapStringKey, EnumType, HashMapStringKey::Hasher> m_Str2ValMap;
+        std::unordered_map<EnumType, String, std::hash<typename std::underlying_type<EnumType>::type>> m_Val2StrMap;
     };
 #define DEFINE_ENUM_ELEMENT_MAPPING(EnumMapping, Elem) EnumMapping.AddMapping(#Elem, Elem)
 
-- 
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