(INTERVAL_LAST_POS): Don't subtract 1 here.

diff --git a/src/intervals.h b/src/intervals.h
index 38671c1..8d10ffa 100644 (file)
--- a/src/intervals.h
+++ b/src/intervals.h
@@ -80,9 +80,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
                                               - TOTAL_LENGTH ((i)->right) \
                                               - TOTAL_LENGTH ((i)->left)))
 
-/* The absolute index of the last character belonging to I.  Note that
+/* The position of the character just past the end of I.  Note that
    the position cache i->position must be valid for this to work. */
-#define INTERVAL_LAST_POS(i) ((i)->position + LENGTH ((i)) - 1)
+#define INTERVAL_LAST_POS(i) ((i)->position + LENGTH ((i)))
 
 /* The total size of the left subtree of this interval. */
 #define LEFT_TOTAL_LENGTH(i) ((i)->left ? (i)->left->total_length : 0)