From dba2b47d45d8b46a960110d1d7d0549d40d17abb Mon Sep 17 00:00:00 2001
From: armink <armink.ztl@gmail.com>
Date: Thu, 14 Mar 2019 20:37:30 +0800
Subject: Sync from master (fc5cfe0a5e5709878f50b904df7c3355078941dd)

---
 include/rtthread.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/rtthread.h')

diff --git a/include/rtthread.h b/include/rtthread.h
index 96ebe1940a..5d3fd3def6 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -497,6 +497,7 @@ void *rt_memcpy(void *dest, const void *src, rt_ubase_t n);
 rt_int32_t rt_strncmp(const char *cs, const char *ct, rt_ubase_t count);
 rt_int32_t rt_strcmp(const char *cs, const char *ct);
 rt_size_t rt_strlen(const char *src);
+rt_size_t rt_strnlen(const char *s, rt_ubase_t maxlen);
 char *rt_strdup(const char *s);
 #if defined(__CC_ARM) || defined(__CLANG_ARM)
 /* leak strdup interface */
-- 
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