(property_change_between_p): Test NULL_INTERVAL_P

in loop, before looking at next->position.

(property_change_between_p): Test NULL_INTERVAL_P
in loop, before looking at next->position.
e050ef74 · Richard M. Stallman · 5843fef3 · e050ef74
Commit e050ef74 authored Aug 14, 1993 by Richard M. Stallman
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src/textprop.c src/textprop.c +2 -0

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--- a/src/textprop.c
+++ b/src/textprop.c
@@ -568,6 +568,8 @@ property_change_between_p (beg, end)
  while (! NULL_INTERVAL_P (next) && intervals_equal (i, next))
    {
      next = next_interval (next);
+      if (NULL_INTERVAL_P (next))
+	return 0;
      if (next->position >= end)
 	return 0;
    }