From 7bb4e74c38642682cfdd0cb4052adfa5efdd7dd1 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Wed, 9 Dec 2020 12:41:50 +0100
Subject: patch 8.2.2117: some functions use any value as a string

Problem:    Some functions use any value as a string.
Solution:   Check that the value is a non-empty string.
---
 src/mbyte.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'src/mbyte.c')

diff --git a/src/mbyte.c b/src/mbyte.c
index 0abb1648f..a4eff7837 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -5551,13 +5551,8 @@ f_setcellwidths(typval_T *argvars, typval_T *rettv UNUSED)
     void
 f_charclass(typval_T *argvars, typval_T *rettv UNUSED)
 {
-    if (argvars[0].v_type != VAR_STRING
-	    || argvars[0].vval.v_string == NULL
-	    || *argvars[0].vval.v_string == NUL)
-    {
-	emsg(_(e_stringreq));
+    if (check_for_string(&argvars[0]) == FAIL)
 	return;
-    }
     rettv->vval.v_number = mb_get_class(argvars[0].vval.v_string);
 }
 #endif
-- 
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