# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1429217482 -7200
# Node ID 203888fa7192572d8bc96ee115825311c867fc47
# Parent  d4bb6110de586b3c989a855d1cdad25a691946ea
patch 7.4.702
Problem:    Joining an empty list does uneccessary work.
Solution:   Let join() return early. (Marco Hinz)

diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -6780,6 +6780,8 @@ list_join(gap, l, sep, echo_style, copyI
     join_T	*p;
     int		i;
 
+    if (l->lv_len < 1)
+	return OK; /* nothing to do */
     ga_init2(&join_ga, (int)sizeof(join_T), l->lv_len);
     retval = list_join_inner(gap, l, sep, echo_style, copyID, &join_ga);
 
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    702,
+/**/
     701,
 /**/
     700,