From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Henderson <richard.henderson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: Re: [Qemu-devel] [libfdt][PATCH v2] implement strnlen for systems
 that need it
Date: Fri, 20 Oct 2017 16:44:58 -0700
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To: John Arbuckle <programmingkidx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+@public.gmane.org, devicetree-compiler-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, qemu-ppc-qX2TKyscuCcdnm+yROfE0A@public.gmane.org, qemu-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org

On 10/20/2017 10:55 AM, John Arbuckle wrote:
> +static inline size_t strnlen(const char *string, size_t max_count)
> +{
> +    size_t count;
> +    for (count = 0; count < max_count; count++) {
> +        if (string[count] == '\0') {
> +            break;
> +        }
> +    }
> +    return count;

Not to nitpick, but

  const char *p = memchr(string, 0, max_count);
  return p ? max_count : p - string;


r~