From: Po Lu <luangruo@yahoo.com>
Date: Thu, 17 Feb 2022 02:32:55 +0000 (+0000)
Subject: Fix SIGFPE on some fonts when calculating their average width on Haiku
X-Git-Tag: emacs-29.0.90~2280
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=99d6536c326a4df3bfb964f421edc2a005deb851;p=emacs.git

Fix SIGFPE on some fonts when calculating their average width on Haiku

* src/haiku_font_support.cc (estimate_font_ascii): Avoid divison
by zero.
---

diff --git a/src/haiku_font_support.cc b/src/haiku_font_support.cc
index 3930cd965f6..549c54d8649 100644
--- a/src/haiku_font_support.cc
+++ b/src/haiku_font_support.cc
@@ -68,7 +68,11 @@ estimate_font_ascii (BFont *font, int *max_width,
 
   *min_width = min;
   *max_width = max;
-  *avg_width = total / count;
+
+  if (count)
+    *avg_width = total / count;
+  else
+    *avg_width = 0;
 }
 
 void