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-rw-r--r--wcsmbs/wcsnlen.c22
1 files changed, 4 insertions, 18 deletions
diff --git a/wcsmbs/wcsnlen.c b/wcsmbs/wcsnlen.c
index f3d5fc1fba..d38c7e4953 100644
--- a/wcsmbs/wcsnlen.c
+++ b/wcsmbs/wcsnlen.c
@@ -26,24 +26,10 @@
 size_t
 __wcsnlen (const wchar_t *s, size_t maxlen)
 {
-  size_t len = 0;
-
-  while (maxlen > 0 && s[len] != L'\0')
-    {
-      ++len;
-      if (--maxlen == 0 || s[len] == L'\0')
-	return len;
-      ++len;
-      if (--maxlen == 0 || s[len] == L'\0')
-	return len;
-      ++len;
-      if (--maxlen == 0 || s[len] == L'\0')
-	return len;
-      ++len;
-      --maxlen;
-    }
-
-  return len;
+  const wchar_t *ret = __wmemchr (s, L'\0', maxlen);
+  if (ret)
+    maxlen = ret - s;
+  return maxlen;
 }
 #ifndef WCSNLEN
 weak_alias (__wcsnlen, wcsnlen)