strncmp issue

[M. Warner Losh]

In message: <515c64960904292221v1e927ef2vb3ed2940f76d32cf at mail.gmail.com>
            Channa <channa.kad at gmail.com> writes:
: 2009/4/30 Olivier Houchard <mlfbsd at ci0.org>:
: > On Wed, Apr 29, 2009 at 11:46:23AM +0530, Channa wrote:
: >> 2009/4/29 Olivier Houchard <mlfbsd at ci0.org>:
: >> > On Tue, Apr 28, 2009 at 07:32:14PM +0530, Channa wrote:
: >> >> Hi,
: >> >>
: >> >> Thank you very much for your response.
: >> >> I am looking forward for your fix.
: >> >>
: >> >> Thanks & Regards,
: >> >> Channa
: >> >>
: >> >
: >> > Hi,
: >> >
: >> > I just committed a fix to -CURRENT, as rev 191633.
: >> > It basically just checks if the length is 0, instead of len - 1 < 0.
: >> >
: >> > Thanks again,
: >> >
: >> > Olivier
: >> >
: >> >
: >> >
: >>
: >> Hi
: >> Thank you very much. I used your fix and tested again.
: >> When i tested as below :
: >>
: >> TEST 1 :
: >>   ret = strncmp("a", "L", -1);  <----------------- ret is '0'
: >>
: >
: > I'm a bit confused here, when I test this I get 21, which is the intended
: > result. Are you sure you weren't still using the old strncmp() ?
: 
: Hi,
: Yes i am using the latest version of strncmp.S in the CURRENT branch.
: Sorry there was a typo i tested strncmp as
: 
: ret = strncmp("a","b",-1)  <------ ret value is still '0'
: 
: I am still getting the return value as zero, it should be -1.

Yes.  We should get the following results:

      strncmp("a", "b", 0);	  0
      strncmp("a", "b", *);	  < 0

where * is any other number :)

Warner