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-rw-r--r--FL/Fl_Device.H4
1 files changed, 2 insertions, 2 deletions
diff --git a/FL/Fl_Device.H b/FL/Fl_Device.H
index 1091e8e4d..8bf619ada 100644
--- a/FL/Fl_Device.H
+++ b/FL/Fl_Device.H
@@ -388,9 +388,9 @@ protected:
virtual void arc(double x, double y, double r, double start, double end);
// --- implementation is in src/fl_arci.cxx which includes src/cfg_gfx/xxx_arci.cxx
friend void fl_arc(int x, int y, int w, int h, double a1, double a2);
- virtual void arc(int x, int y, int w, int h, double a1, double a2);
+ virtual void arc(int x, int y, int w, int h, double a1, double a2) = 0;
friend void fl_pie(int x, int y, int w, int h, double a1, double a2);
- virtual void pie(int x, int y, int w, int h, double a1, double a2);
+ virtual void pie(int x, int y, int w, int h, double a1, double a2) = 0;
};