Help prevent input method failures in XCreateIC from Nelson

[sxemacs] / src / indent.c

diff --git a/src/indent.c b/src/indent.c
index 290386e..ec802b2 100644 (file)
--- a/src/indent.c
+++ b/src/indent.c
@@ -571,10 +571,15 @@ static int vpix_motion(line_start_cache_dynarr * cache, int start, int end)
        assert(start >= 0);
        assert(end < Dynarr_length(cache));
 
+       if (start<0 || end<0 || end>start) {
+               /* Least bad thing in case of in fatal_failure, where
+                  assert will not terminate this function... */
+               return 0;
+       }
+
        vpix = 0;
        for (i = start; i <= end; i++)
                vpix += Dynarr_atp(cache, i)->height;
-
        return vpix;
 }