* xdisp.c (message_log_check_duplicate): Return unsigned long, not int.

This is less likely to overflow, and avoids undefined behavior if
overflow does occur.  All callers changed.  Use strtoul to scan
for the unsigned long integer.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index d491d089514..a9f3e3a5b70 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,10 @@
 2011-03-22  Paul Eggert  <eggert@cs.ucla.edu>
 
+        * xdisp.c (message_log_check_duplicate): Return unsigned long, not int.
+        This is less likely to overflow, and avoids undefined behavior if
+        overflow does occur.  All callers changed.  Use strtoul to scan
+        for the unsigned long integer.
+
         * scroll.c (do_scrolling): Work around GCC bug 48228.
         See <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48228>.