On 11/19/20 8:42 PM, Heinrich Schuchardt wrote: > Hello Michael, > > the strnlen.3 manpage has the following sentence: > > "In doing this, strnlen() looks only at the first maxlen characters in > the string pointed to by s and never beyond s+maxlen." > > This sentence is self-contradictory: > > The last visited character implied by "first maxlen characters" is > s[maxlen-1]. > > Given that "beyond a" does not include "a", the last visited character > implied by "never beyond s+maxlen" is s[maxlen]. > > A consistent sentence would be > > "In doing this, strnlen() looks only at the first maxlen characters in > the string pointed to by s and never beyond s+maxlen-1." > > I would prefer > > "In doing this, strnlen() looks only at the first maxlen characters in > the string pointed to by s and never beyond s[maxlen-1]" Thanks, Heinrich. I changed as you suggested. Cheers, Michael diff --git a/man3/strnlen.3 b/man3/strnlen.3 index 6c4b080fc..d4385af49 100644 --- a/man3/strnlen.3 +++ b/man3/strnlen.3 @@ -54,7 +54,7 @@ looks only at the first characters in the string pointed to by .I s and never beyond -.IR s+maxlen . +.IR s[maxlen\-1] . .SH RETURN VALUE The .BR strnlen () -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
