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+# C++ Bugs in SplashKit Online
+
+This document records issues found while testing C++ in SplashKit Online.
+
+## Test Format
+
+For each issue:
+- Feature tested
+- Sample code, files or function used
+- Expected result
+- Actual result
+- Errors or compiler output
+- Notes
+
+---
+
+## Bug 1: splashkit.h fails when included directly and indirectly
+
+**Feature tested:**
+Multi-file C++ project with a user-defined header file
+
+**Files used:**
+`main.cpp`, `game.h`, `game.cpp`
+
+**Sample code:**
+
+`main.cpp`
+```cpp
+#include "splashkit.h"
+#include "game.h"
+
+int main()
+{
+    open_window("Header Test", 800, 600);
+
+    while (!quit_requested())
+    {
+        process_events();
+        clear_screen(COLOR_WHITE);
+
+        draw_scene();
+
+        refresh_screen(60);
+    }
+
+    return 0;
+}
+```
+
+`game.h`
+```cpp
+#ifndef GAME_H
+#define GAME_H
+
+#include "splashkit.h"
+
+void draw_scene();
+
+#endif
+```
+
+`game.cpp`
+```cpp
+#include "game.h"
+
+void draw_scene()
+{
+    fill_circle(COLOR_RED, 400, 300, 50);
+}
+```
+
+**Expected result:**
+The program should compile and run, displaying a red circle in the window.
+
+**Actual result:**
+Compilation fails when `splashkit.h` is included in game.h and also included in `main.cpp`
+
+**Compiler output:**
+```text
+In file included from /code/main.cpp:2:
+In file included from /code/game.h:4:
+In file included from /include/splashkit.h:16:
+/include/splashkit/bundles.h:139:1: error: extraneous closing brace ('}')
+}
+^
+In file included from /code/main.cpp:2:
+In file included from /code/game.h:4:
+In file included from /include/splashkit.h:17:
+/include/splashkit/interface.h:810:1: error: extraneous closing brace ('}')
+}
+^
+In file included from /code/main.cpp:2:
+In file included from /code/game.h:4:
+In file included from /include/splashkit.h:25:
+/include/splashkit/camera.h:335:1: error: extraneous closing brace ('}')
+}
+^
+In file included from /code/main.cpp:2:
+In file included from /code/game.h:4:
+In file included from /include/splashkit.h:26:
+/include/splashkit/random.h:47:1: error: extraneous closing brace ('}')
+}
+^
+4 errors generated.
+```
+
+**Notes:**
+
+A basic single file C++ program including `splashkit.h` directly in `main.cpp` compiled and ran successfully.
+
+The error only appeared after introducing the separate header file `game.h` that also includes `splashkit.h`.
+
+I tested the same multi file program removing `splashkit.h` from either the separate header file `game.h` or `main.cpp` and it compiled and ran successfully.
+
+This suggests an issue with header handling, include order, or malformed C++ headers in SplashKit Online.
+
+## Bug 2: splashkit.h fails on duplicate inclusion
+
+**Feature tested:**
+Repeated header file inclusion
+
+**Files used:**
+`main.cpp`, `game.h`, `game.cpp`
+
+**Sample code:**
+
+`main.cpp`
+```cpp
+#include "splashkit.h"
+#include "splashkit.h"
+#include "game.h"
+
+int main()
+{
+    open_window("Header Test", 800, 600);
+
+    while (!quit_requested())
+    {
+        process_events();
+        clear_screen(COLOR_WHITE);
+
+        draw_scene();
+
+        refresh_screen(60);
+    }
+
+    return 0;
+}
+```
+
+`game.h`
+```cpp
+#ifndef GAME_H
+#define GAME_H
+
+void draw_scene();
+
+#endif
+```
+
+`game.cpp`
+```cpp
+#include "splashkit.h"
+#include "game.h"
+
+void draw_scene()
+{
+    fill_circle(COLOR_RED, 400, 300, 50);
+}
+```
+
+**Expected result:**
+The program should compile and run, displaying a red circle in the window.
+
+**Actual result:**
+Compilation fails when #include `splashkit.h` is duplicated.
+
+**Compiler output:**
+```text
+In file included from /code/main.cpp:2:
+In file included from /include/splashkit.h:16:
+/include/splashkit/bundles.h:139:1: error: extraneous closing brace ('}')
+}
+^
+In file included from /code/main.cpp:2:
+In file included from /include/splashkit.h:17:
+/include/splashkit/interface.h:810:1: error: extraneous closing brace ('}')
+}
+^
+In file included from /code/main.cpp:2:
+In file included from /include/splashkit.h:25:
+/include/splashkit/camera.h:335:1: error: extraneous closing brace ('}')
+}
+^
+In file included from /code/main.cpp:2:
+In file included from /include/splashkit.h:26:
+/include/splashkit/random.h:47:1: error: extraneous closing brace ('}')
+}
+^
+4 errors generated.
+```
+
+**Notes:**
+
+A basic single file C++ program where `splashkit.h` is included once compiles and runs successfully.
+
+The error only appeared after introducing a duplicate `splashkit.h` inclusion.
+
+I also tested duplicate inclusion of the user-defined header file `game.h` and this compiled and ran successfuly because the file has proper header guards.
+
+The issue with duplicate `splashkit.h` inclusion suggests this file itself lacks proper header guards.
+
+## Summary of findings
+
+The issue appears to be specific to `splashkit.h` and/or its nested headers.
+
+Observed behaviour:
+- Including `game.h` multiple times works correctly when standard header guards are used.
+- Including `splashkit.h` multiple times causes compilation failure.
+- Including `splashkit.h` inside the user-defined header game.h whilst also including it in main.cpp causes compilation failure.
+- Including `splashkit.h` once in either main.cpp or the user-defined header file game.h works.
+
+This suggests that `splashkit.h` or one of the nested SplashKit headers is not safely handling repeated or indirect inclusion.
+
+## Additional observation
+
+The demo C++ program available shows a workaround for compilation errors that come from multiple `splashkit.h` inclusions by using a manual include guard.
+
+**It is as follows:**
+
+Create a user-defined header file.
+
+`splashkit_wrap.h`
+```cpp
+#ifndef SPLASHKIT_DONE
+// splashkit.h not safe to include multiple times (to fix)
+#define SPLASHKIT_DONE
+#include "splashkit.h"
+#endif
+```
+
+Use this else where in the project instead of `splashkit.h` directly.
+
+`program.cpp`
+```cpp
+#include "splashkit_wrap.h"
+//rest of code
+```
+
+## What to do next?
+
+- Identify which nested Splashkit header(s) are responsible for the repeated/direct and indirect inclusions failure.
+- Compare behaviour between `splashkit.h` and the workaround header `splashkit_wrap.h` to understand whether the wrapper is avoiding or masking the same issue.
+
+**Possible workaround improvements:**
+- Include user available documentation on the current workaround.
+- Editor UI warning or note that some multi-file header inclusion patterns may currently fail white C++ remains experimental and direct them to above documentation.
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