Method DebugCheckVersionAndDataLayout

Contrib/imgui/imgui.cpp:8883–8894

Helper function to verify ABI compatibility between caller code and compiled version of Dear ImGui. Verify that the type sizes are matching between the calling file's compilation unit and imgui.cpp's compilation unit If this triggers you have an issue: - Most commonly: mismatched headers and compiled code version. - Or: mismatched configuration #define, compilation settings, packing pragma etc. Th

//   which is way it is required you put them in your imconfig file (and not just before including imgui.h).
//   Otherwise it is possible that different compilation units would see different structure layout
bool ImGui::DebugCheckVersionAndDataLayout(const char* version, size_t sz_io, size_t sz_style, size_t sz_vec2, size_t sz_vec4, size_t sz_vert, size_t sz_idx)
{
    bool error = false;
    if (strcmp(version, IMGUI_VERSION) != 0) { error = true; IM_ASSERT(strcmp(version, IMGUI_VERSION) == 0 && "Mismatched version string!"); }
    if (sz_io != sizeof(ImGuiIO)) { error = true; IM_ASSERT(sz_io == sizeof(ImGuiIO) && "Mismatched struct layout!"); }
    if (sz_style != sizeof(ImGuiStyle)) { error = true; IM_ASSERT(sz_style == sizeof(ImGuiStyle) && "Mismatched struct layout!"); }
    if (sz_vec2 != sizeof(ImVec2)) { error = true; IM_ASSERT(sz_vec2 == sizeof(ImVec2) && "Mismatched struct layout!"); }
    if (sz_vec4 != sizeof(ImVec4)) { error = true; IM_ASSERT(sz_vec4 == sizeof(ImVec4) && "Mismatched struct layout!"); }
    if (sz_vert != sizeof(ImDrawVert)) { error = true; IM_ASSERT(sz_vert == sizeof(ImDrawVert) && "Mismatched struct layout!"); }
    if (sz_idx != sizeof(ImDrawIdx)) { error = true; IM_ASSERT(sz_idx == sizeof(ImDrawIdx) && "Mismatched struct layout!"); }
    return !error;
}

// Until 1.89 (IMGUI_VERSION_NUM < 18814) it was legal to use SetCursorPos() to extend the boundary of a parent (e.g. window or table cell)
// This is causing issues and ambiguity and we need to retire that.