From: Bram Moolenaar <Bram@vim.org>
Date: Mon, 24 May 2010 20:06:04 +0000 (+0200)
Subject: And another small fix for persistent undo.
X-Git-Tag: v7.3~353
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9d72807646363a7b1570f42517b308ac2fe8ef65;p=vim

And another small fix for persistent undo.
---

diff --git a/src/undo.c b/src/undo.c
index 35a907fa8..35fa31064 100644
--- a/src/undo.c
+++ b/src/undo.c
@@ -1025,10 +1025,10 @@ u_read_undo(name, hash)
             {
                 /* If we've had to move from the rightmost side of the table,
                  * we have to shift everything to the right by one spot. */
-                if (i < num_read_uhps - 1)
+                if (num_read_uhps - i - 1 > 0)
                 {
                     memmove(uhp_table + i + 2, uhp_table + i + 1,
-                            (num_read_uhps - i) * sizeof(u_header_T *));
+                            (num_read_uhps - i - 1) * sizeof(u_header_T *));
                 }
                 uhp_table[i + 1] = uhp;
                 break;