Backends: DX12: Fix warning (#3706). Disable obsolete Tables enums, leave them commented out. Using _MSVC_LANG to enable offsetof() and static_assert() on VS2015.3+

backends/imgui_impl_dx12.h

@@ -16,6 +16,11 @@
 #pragma once
 #include "imgui.h"      // IMGUI_IMPL_API
 
+#ifdef _MSC_VER
+#pragma warning (push)
+#pragma warning (disable: 4471) // a forward declaration of an unscoped enumeration must have an underlying type
+#endif
+
 enum DXGI_FORMAT;
 struct ID3D12Device;
 struct ID3D12DescriptorHeap;
@@ -36,3 +41,8 @@ IMGUI_IMPL_API void     ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3
 // Use if you want to reset your rendering device without losing Dear ImGui state.
 IMGUI_IMPL_API void     ImGui_ImplDX12_InvalidateDeviceObjects();
 IMGUI_IMPL_API bool     ImGui_ImplDX12_CreateDeviceObjects();
+
+#ifdef _MSC_VER
+#pragma warning (pop)
+#endif
+

imgui.h

@@ -59,7 +59,7 @@ Index of this file:
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
 #define IMGUI_VERSION               "1.80 WIP"
-#define IMGUI_VERSION_NUM           17909
+#define IMGUI_VERSION_NUM           17910
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
 #define IMGUI_HAS_TABLE
 
@@ -80,7 +80,7 @@ Index of this file:
 #endif
 #define IM_ARRAYSIZE(_ARR)          ((int)(sizeof(_ARR) / sizeof(*(_ARR))))     // Size of a static C-style array. Don't use on pointers!
 #define IM_UNUSED(_VAR)             ((void)(_VAR))                              // Used to silence "unused variable warnings". Often useful as asserts may be stripped out from final builds.
-#if (__cplusplus >= 201100)
+#if (__cplusplus >= 201100) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201100)
 #define IM_OFFSETOF(_TYPE,_MEMBER)  offsetof(_TYPE, _MEMBER)                    // Offset of _MEMBER within _TYPE. Standardized as offsetof() in C++11
 #else
 #define IM_OFFSETOF(_TYPE,_MEMBER)  ((size_t)&(((_TYPE*)0)->_MEMBER))           // Offset of _MEMBER within _TYPE. Old style macro.
@@ -1106,8 +1106,8 @@ enum ImGuiTableFlags_
 
     // Obsolete names (will be removed soon)
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    , ImGuiTableFlags_ColumnsWidthFixed = ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_ColumnsWidthStretch = ImGuiTableFlags_SizingStretchSame   // WIP Tables 2020/12
-    , ImGuiTableFlags_SizingPolicyFixed = ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_SizingPolicyStretch = ImGuiTableFlags_SizingStretchSame   // WIP Tables 2021/01
+    //, ImGuiTableFlags_ColumnsWidthFixed = ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_ColumnsWidthStretch = ImGuiTableFlags_SizingStretchSame   // WIP Tables 2020/12
+    //, ImGuiTableFlags_SizingPolicyFixed = ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_SizingPolicyStretch = ImGuiTableFlags_SizingStretchSame   // WIP Tables 2021/01
 #endif
 };
 

imgui_demo.cpp

@@ -5552,6 +5552,9 @@ void ImGui::ShowAboutWindow(bool* p_open)
 #ifdef _MSC_VER
         ImGui::Text("define: _MSC_VER=%d", _MSC_VER);
 #endif
+#ifdef _MSVC_LANG
+        ImGui::Text("define: _MSVC_LANG=%d", (int)_MSVC_LANG);
+#endif
 #ifdef __MINGW32__
         ImGui::Text("define: __MINGW32__");
 #endif

imgui_internal.h

@@ -178,7 +178,7 @@ namespace ImStb
 #define IMGUI_DEBUG_LOG_NAV(...)        ((void)0)       // Disable log
 
 // Static Asserts
-#if (__cplusplus >= 201100)
+#if (__cplusplus >= 201100) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201100)
 #define IM_STATIC_ASSERT(_COND)         static_assert(_COND, "")
 #else
 #define IM_STATIC_ASSERT(_COND)         typedef char static_assertion_##__line__[(_COND)?1:-1]