From ee39ef0b93d31763d05e54ba99801e3f1a254c0d Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Sat, 10 Sep 2016 19:17:42 +0200
Subject: patch 7.4.2361 Problem:    Checking for last_timer_id to overflow is
 not reliable. (Ozaki             Kiichi) Solution:   Check for the number not
 going up.

---
 src/ex_cmds2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/ex_cmds2.c')

diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
index 8df67536c5..b8d8dca9e0 100644
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -1143,10 +1143,11 @@ free_timer(timer_T *timer)
 create_timer(long msec, int repeat)
 {
     timer_T	*timer = (timer_T *)alloc_clear(sizeof(timer_T));
+    long	prev_id = last_timer_id;
 
     if (timer == NULL)
 	return NULL;
-    if (++last_timer_id < 0)
+    if (++last_timer_id <= prev_id)
 	/* Overflow!  Might cause duplicates... */
 	last_timer_id = 0;
     timer->tr_id = last_timer_id;
-- 
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