Fix assertion when checking if change in selection

[lyx.git] / src / mathed / InsetMathBox.h

diff --git a/src/mathed/InsetMathBox.h b/src/mathed/InsetMathBox.h
index 2f6ba483d9794bb18a44e3cb712c57eb1982a84b..af166c19c71b5cf75df874a2d8cb8be522393e05 100644 (file)
--- a/src/mathed/InsetMathBox.h
+++ b/src/mathed/InsetMathBox.h
@@ -58,6 +58,8 @@ public:
        ///
        mode_type currentMode() const { return TEXT_MODE; }
        ///
+       marker_type marker(BufferView const *) const { return NO_MARKER; }
+       ///
        void metrics(MetricsInfo & mi, Dimension & dim) const;
        ///
        void draw(PainterInfo & pi, int x, int y) const;
@@ -116,6 +118,8 @@ public:
        ///
        InsetMathBoxed(Buffer * buf);
        ///
+       marker_type marker(BufferView const *) const { return NO_MARKER; }
+       ///
        void validate(LaTeXFeatures & features) const;
        ///
        void metrics(MetricsInfo & mi, Dimension & dim) const;