Fix parsing of some more .tlo files.

[pspp] / src / output / charts / plot-hist-cairo.c

diff --git a/src/output/charts/plot-hist-cairo.c b/src/output/charts/plot-hist-cairo.c
index d196b1572373ed71758f4d7edbda23b398caed56..620fe68c23fb460d70395b7bfbdc8d8abfd0e179 100644 (file)
--- a/src/output/charts/plot-hist-cairo.c
+++ b/src/output/charts/plot-hist-cairo.c
@@ -75,8 +75,8 @@ hist_draw_bar (cairo_t *cr, const struct xrchart_geometry *geom,
   double lower;
   double height;
 
-  assert ( 0 == gsl_histogram_get_range (h, bar, &lower, &upper));
-  assert ( upper >= lower);
+  assert (0 == gsl_histogram_get_range (h, bar, &lower, &upper));
+  assert (upper >= lower);
 
   const double x_pos =
     (lower - geom->axis[SCALE_ABSCISSA].min) * geom->axis[SCALE_ABSCISSA].scale
@@ -118,9 +118,11 @@ xrchart_draw_histogram (const struct chart_item *chart_item, cairo_t *cr,
       return;
     }
 
-  xrchart_write_yscale (cr, geom, 0, gsl_histogram_max_val (h->gsl_hist));
-  xrchart_write_xscale (cr, geom, gsl_histogram_min (h->gsl_hist),
-                       gsl_histogram_max (h->gsl_hist));
+  if (! xrchart_write_yscale (cr, geom, 0, gsl_histogram_max_val (h->gsl_hist)))
+    return;
+  if (! xrchart_write_xscale (cr, geom, gsl_histogram_min (h->gsl_hist),
+                              gsl_histogram_max (h->gsl_hist)))
+    return;
 
 
   /* Draw the ticks and compute if the rendered tick text is wider than the bin */