1 files changed, 3 insertions, 1 deletions
diff --git a/spline-widget/functionconfig.h b/spline-widget/functionconfig.h
index 6c039831..5c9eeb2b 100644
--- a/spline-widget/functionconfig.h
+++ b/spline-widget/functionconfig.h
@@ -28,9 +28,11 @@ class SPLINE_WIDGET_EXPORT Map {
 private:
     static constexpr int value_count = 10000;
 
-    struct State {
+    struct State
+    {
         QList<QPointF> input;
         std::vector<float> data;
+        bool operator==(const State& s) const;
     };
 
     int precision() const;