manual application of fix for github.com/ocornut/imgui/issues/5343

removed discontinued notice from README

Author: JetSetIlly

README.md

@@ -4,16 +4,6 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/inkyblackness/imgui-go)](https://goreportcard.com/report/github.com/inkyblackness/imgui-go)
 [![Lint Status](https://github.com/inkyblackness/imgui-go/workflows/golangci-lint/badge.svg)](https://github.com/inkyblackness/imgui-go/actions)
 
-## Discontinued
-**This repository is no longer maintained as per 2022-12-31.
-Please consider using https://github.com/AllenDang/cimgui-go instead.
-That project is an auto-generated wrapper and makes it easier to be at the latest version of *Dear ImGui*.**
-
-**You may also have a look at this fork https://github.com/eliasdaler/imgui-go , the owner intended to
-continue to support it.**
-
----
-
 This library is a [Go](https://www.golang.org) wrapper for **[Dear ImGui](https://github.com/ocornut/imgui)**.
 
 This wrapper started as a special-purpose wrapper for use within InkyBlackness.

imgui/imgui_draw.cpp

@@ -2618,9 +2618,16 @@ void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opa
     ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
     IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
 
+// https://github.com/ocornut/imgui/issues/5343
+#ifdef __GNUC__
+    if (user_rects.Size < 1) {
+        __builtin_unreachable();
+	}
+#endif
+
     ImVector<stbrp_rect> pack_rects;
     pack_rects.resize(user_rects.Size);
-    memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
+    memset(pack_rects.Data, 0, pack_rects.size_in_bytes());
     for (int i = 0; i < user_rects.Size; i++)
     {
         pack_rects[i].w = user_rects[i].Width;