Function LowerBound

ImGUI GLFW Tutorial/imgui/imgui.cpp:1873–1893

std::lower_bound but without the bullshit

// std::lower_bound but without the bullshit
static ImGuiStorage::ImGuiStoragePair* LowerBound(ImVector<ImGuiStorage::ImGuiStoragePair>& data, ImGuiID key)
{
    ImGuiStorage::ImGuiStoragePair* first = data.Data;
    ImGuiStorage::ImGuiStoragePair* last = data.Data + data.Size;
    size_t count = (size_t)(last - first);
    while (count > 0)
    {
        size_t count2 = count >> 1;
        ImGuiStorage::ImGuiStoragePair* mid = first + count2;
        if (mid->key < key)
        {
            first = ++mid;
            count -= count2 + 1;
        }
        else
        {
            count = count2;
        }
    }
    return first;
}

// For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
void ImGuiStorage::BuildSortByKey()