Examples: Metal: Wrap main event loop body in an @autoreleasepool block to ensure allocations get freed even if underlying system event loop gets paused due to app nap (#2910, #2917)

docs/CHANGELOG.txt

@@ -37,6 +37,8 @@ Other Changes:
 - Misc: Added ImGuiMouseCursor_NotAllowed enum so it can be used by more shared widgets. [@rokups]
 - Backends: GLFW, SDL, Win32, OSX, Allegro: Added support for ImGuiMouseCursor_NotAllowed. [@rokups]
 - Backends: GLFW: Added support for the missing mouse cursors newly added in GLFW 3.4+. [@rokups]
+- Examples: Metal: Wrapped main loop in @autoreleasepool block to ensure allocations get freed
+  even if underlying system event loop gets paused due to app nap (#2910, #2917). [@bear24rw]
 
 
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examples/example_glfw_metal/main.mm

@@ -81,6 +81,8 @@ int main(int, char**)
 
     // Main loop
     while (!glfwWindowShouldClose(window))
+    {
+        @autoreleasepool
         {
             // Poll and handle events (inputs, window resize, etc.)
             // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
@@ -154,6 +156,7 @@ int main(int, char**)
             [commandBuffer presentDrawable:drawable];
             [commandBuffer commit];
         }
+    }
 
     // Cleanup
     ImGui_ImplMetal_Shutdown();