BeginPopupModal instant crash

[Hrothgor]

I am using a lot of ImGui features, everything work perfectly, but when I try to use Modal it always crash.

Just this simple code crash:

        ImGui::Begin("test");
        if (ImGui::Button("Test"))
            ImGui::OpenPopup("Test?");
        if (ImGui::BeginPopupModal("Test?", NULL, ImGuiWindowFlags_AlwaysAutoResize))
        {
            ImGui::Text("Hello world!");
            if (ImGui::Button("OK", ImVec2(120, 0))) { ImGui::CloseCurrentPopup(); }
            ImGui::EndPopup();
        }
        ImGui::End();

It give me and error when I click the button to open the modal:
const T& ImVector<T>::operator[](int) const [with T = short unsigned int]: Assertion i >= 0 && i < Size' failed.`

Anyone has an idea why ?

[PathogenDavid]

I cannot repro this crash on v1.87 or the current master/docking branches.

It would be helpful if you posted an issue and filled out the entire template and provided a stack trace of the crash since that assert alone is pretty vague.

[Hrothgor]

Thanks for the answer, but I used raylib binding with ImGui, and the problem was from raylib. They updated it, now it works.

[PathogenDavid]

Glad to hear you got things sorted!