X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fcharts%2Fpiechart.c;h=935c6eb0fed9784024c54e571e53936e07c09c7b;hb=204a1ee35aebcc2cf955017070c1a3638cdaee22;hp=c6e6b24f653f04df87090619d2d21a4956853155;hpb=c9aa2a83f27a47bbb33969e6115e99fe049001b4;p=pspp

diff --git a/src/output/charts/piechart.c b/src/output/charts/piechart.c
index c6e6b24f65..935c6eb0fe 100644
--- a/src/output/charts/piechart.c
+++ b/src/output/charts/piechart.c
@@ -26,6 +26,7 @@
 #include <stdio.h>
 
 #include <data/value-labels.h>
+#include <libpspp/cast.h>
 #include <libpspp/str.h>
 #include <output/charts/plot-chart.h>
 #include <output/chart-provider.h>
@@ -80,7 +81,7 @@ static void
 piechart_draw (const struct chart *chart, cairo_t *cr,
                struct chart_geometry *geom)
 {
-  struct piechart *pie = (struct piechart *) chart;
+  const struct piechart *pie = UP_CAST (chart, struct piechart, chart);
   double total_magnitude;
   double left_label, right_label;
   double centre_x, centre_y;
@@ -176,7 +177,7 @@ draw_segment(cairo_t *cr,
 static void
 piechart_destroy (struct chart *chart)
 {
-  struct piechart *pie = (struct piechart *) chart;
+  struct piechart *pie = UP_CAST (chart, struct piechart, chart);
   int i;
 
   free (pie->title);