From 81e0be856a6273c414c456a64fd28879fe81bf45 Mon Sep 17 00:00:00 2001
From: ocornut <omarcornut@gmail.com>
Date: Wed, 24 Jan 2024 14:27:43 +0100
Subject: [PATCH] Fixed strict-aliasing violation in
 FormatTextureIDForDebugDisplay(). (#7090, #7256)

---
 imgui.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/imgui.cpp b/imgui.cpp
index 75050e355..4cb27b555 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -14787,10 +14787,12 @@ void ImGui::DebugNodeColumns(ImGuiOldColumns* columns)
 
 static void FormatTextureIDForDebugDisplay(char* buf, int buf_size, ImTextureID tex_id)
 {
+    union { void* ptr; int integer; } tex_id_opaque;
+    memcpy(&tex_id_opaque, &tex_id, ImMin(sizeof(void*), sizeof(tex_id)));
     if (sizeof(tex_id) >= sizeof(void*))
-        ImFormatString(buf, buf_size, "0x%p", (void*)*(intptr_t*)(void*)&tex_id);
+        ImFormatString(buf, buf_size, "0x%p", tex_id_opaque.ptr);
     else
-        ImFormatString(buf, buf_size, "0x%04X", *(int*)(void*)&tex_id);
+        ImFormatString(buf, buf_size, "0x%04X", tex_id_opaque.integer);
 }
 
 // [DEBUG] Display contents of ImDrawList