From b776bf91ff9c32a15958642967a9e7ed309be06e Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Fri, 19 Nov 2010 18:44:59 +0100
Subject: [PATCH] Tighter check on table.sort function compliance (from Lua
 5.2).

---
 src/lib_table.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib_table.c b/src/lib_table.c
index 5a1e0f78..cf39f08c 100644
--- a/src/lib_table.c
+++ b/src/lib_table.c
@@ -225,12 +225,12 @@ static void auxsort(lua_State *L, int l, int u)
     for (;;) {  /* invariant: a[l..i] <= P <= a[j..u] */
       /* repeat ++i until a[i] >= P */
       while (lua_rawgeti(L, 1, ++i), sort_comp(L, -1, -2)) {
-	if (i>u) lj_err_caller(L, LJ_ERR_TABSORT);
+	if (i>=u) lj_err_caller(L, LJ_ERR_TABSORT);
 	lua_pop(L, 1);  /* remove a[i] */
       }
       /* repeat --j until a[j] <= P */
       while (lua_rawgeti(L, 1, --j), sort_comp(L, -3, -1)) {
-	if (j<l) lj_err_caller(L, LJ_ERR_TABSORT);
+	if (j<=l) lj_err_caller(L, LJ_ERR_TABSORT);
 	lua_pop(L, 1);  /* remove a[j] */
       }
       if (j<i) {