common: add make_unique for C++11

v2: fix windows compilation
v3: fix copyright date

common/build/Utilities/utilities.vcxproj

@@ -123,6 +123,7 @@
     <ClInclude Include="..\..\include\Utilities\General.h" />
     <ClInclude Include="..\..\include\Utilities\HashMap.h" />
     <ClInclude Include="..\..\include\Utilities\MathUtils.h" />
+    <ClInclude Include="..\..\include\Utilities\MakeUnique.h" />
     <ClInclude Include="..\..\include\Utilities\MemcpyFast.h" />
     <ClInclude Include="..\..\include\Utilities\Path.h" />
     <ClInclude Include="..\..\src\Utilities\PrecompiledHeader.h" />

common/build/Utilities/utilities.vcxproj.filters

@@ -162,6 +162,9 @@
     <ClInclude Include="..\..\include\Utilities\MathUtils.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\include\Utilities\MakeUnique.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\include\Utilities\MemcpyFast.h">
       <Filter>Header Files</Filter>
     </ClInclude>

common/include/Utilities/Dependencies.h

@@ -224,6 +224,7 @@ public:
 #include <list>
 #include <algorithm>
 #include <memory>
+#include "MakeUnique.h" // make_unique for C++11
 #include <atomic>
 #include <thread>
 

common/include/Utilities/MakeUnique.h

@@ -0,0 +1,73 @@
+/*  PCSX2 - PS2 Emulator for PCs
+ *  Copyright (C) 2017-2017  PCSX2 Dev Team
+ *
+ *  PCSX2 is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU Lesser General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with PCSX2.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <memory>
+
+// make_unique is quite handy but it requires to enable C++14 support (of
+// course on C++14 compliant compiler)
+//
+// Instead just provide the std++ implementation when only C++11 is enabled
+// File could be dropped when we switch to C++14
+
+#if __cplusplus <= 201103L && !defined(_MSC_VER)
+
+namespace std
+{
+
+template <typename _Tp>
+struct _MakeUniq
+{
+    typedef std::unique_ptr<_Tp> __single_object;
+};
+
+template <typename _Tp>
+struct _MakeUniq<_Tp[]>
+{
+    typedef std::unique_ptr<_Tp[]> __array;
+};
+
+template <typename _Tp, size_t _Bound>
+struct _MakeUniq<_Tp[_Bound]>
+{
+    struct __invalid_type
+    {
+    };
+};
+
+/// std::make_unique for single objects
+template <typename _Tp, typename... _Args>
+inline typename _MakeUniq<_Tp>::__single_object
+make_unique(_Args &&... __args)
+{
+    return std::unique_ptr<_Tp>(new _Tp(std::forward<_Args>(__args)...));
+}
+
+/// std::make_unique for arrays of unknown bound
+template <typename _Tp>
+inline typename _MakeUniq<_Tp>::__array
+make_unique(size_t __num)
+{
+    return std::unique_ptr<_Tp>(new typename remove_extent<_Tp>::type[__num]());
+}
+
+/// Disable std::make_unique for arrays of known bound
+template <typename _Tp, typename... _Args>
+inline typename _MakeUniq<_Tp>::__invalid_type
+make_unique(_Args &&...) = delete;
+}
+
+#endif

common/src/Utilities/CMakeLists.txt

@@ -58,6 +58,7 @@ set(UtilitiesHeaders
 	../../include/Utilities/FixedPointTypes.h
 	../../include/Utilities/General.h
 	../../include/Utilities/HashMap.h
+	../../include/Utilities/MakeUnique.h
 	../../include/Utilities/MemcpyFast.h
 	../../include/Utilities/MemsetFast.inl
 	../../include/Utilities/Path.h