svn commit: r233147 - stable/8/lib/libc/string
jhellenthal at dataix.net
Mon Mar 19 02:17:30 UTC 2012
On Sun, Mar 18, 2012 at 09:58:12PM -0400, Eitan Adler wrote:
> On Sun, Mar 18, 2012 at 9:52 PM, Jason Hellenthal
> <jhellenthal at dataix.net> wrote:
> > On Mon, Mar 19, 2012 at 01:27:55AM +0000, Eitan Adler wrote:
> >> Author: eadler
> >> Date: Mon Mar 19 01:27:55 2012
> >> New Revision: 233147
> >> URL: http://svn.freebsd.org/changeset/base/233147
> >> Log:
> >> MFC r232503:
> >> POSIX mandates that swab do nothing when len < 0
> >> PR: 140690
> >> Approved by: cperciva
> >> Modified: stable/8/lib/libc/string/swab.c
> >> ==============================================================================
> >> --- stable/8/lib/libc/string/swab.c Mon Mar 19 01:27:30 2012 (r233146)
> >> +++ stable/8/lib/libc/string/swab.c Mon Mar 19 01:27:55 2012 (r233147)
> >> @@ -45,6 +45,8 @@ swab(const void * __restrict from, void
> >> int n;
> >> char *fp, *tp;
> >> + if (len <= 0)
> >> + return;
> > Does this not test to see if it is also equal to 0(zero) ?
> > If I understand the above statement "POSIX mandates that swab do nothing
> > when len < 0" then the above code should be exactly that ... and not
> > testing whether it is equal to zero...
> If the code doesn't check for len <= 0 then it will do something.
To my understanding of the specification it should only return if len is
negative... 0 is not a negative number.
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