From: Eric Haszlakiewicz <erh+git@nimenees.com>
Date: Tue, 5 Dec 2017 04:29:36 +0000 (+0000)
Subject: Add cast to int on tolower() to fix warnings about array subscripts.
X-Git-Tag: json-c-0.13-20171207~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e7ec2ffcda6591edb0475da64971b737aa5db6f;p=thirdparty%2Fjson-c.git

Add cast to int on tolower() to fix warnings about array subscripts.
---

diff --git a/json_tokener.c b/json_tokener.c
index 416058d4..620468e4 100644
--- a/json_tokener.c
+++ b/json_tokener.c
@@ -403,7 +403,7 @@ struct json_object* json_tokener_parse_ex(struct json_tokener *tok,
 	{
 		char inf_char = *str;
 		if (!(tok->flags & JSON_TOKENER_STRICT))
-			inf_char = tolower(*str);
+			inf_char = tolower((int)*str);
 		if (inf_char != _json_inf_str[tok->st_pos])
 		{
 			tok->err = json_tokener_error_parse_unexpected;