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* A small bug in strrchr
@ 2012-05-26 21:05 Richard Pennington
  2012-05-26 22:06 ` Rich Felker
  0 siblings, 1 reply; 5+ messages in thread
From: Richard Pennington @ 2012-05-26 21:05 UTC (permalink / raw)
  To: musl

Hi,

I found a small bug in strrchr(). 

strrchr("string", '\0') does not return a pointer to the trailing nul byte.

Here is the corrected version:


#include <string.h>

void *__memrchr(const void *, int, size_t);

char *strrchr(const char *s, int c)
{
        return __memrchr(s, c, strlen(s) + 1);
}

(I added the + 1)

-Rich



^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: A small bug in strrchr
  2012-05-26 21:05 A small bug in strrchr Richard Pennington
@ 2012-05-26 22:06 ` Rich Felker
  2012-05-26 22:12   ` Richard Pennington
  0 siblings, 1 reply; 5+ messages in thread
From: Rich Felker @ 2012-05-26 22:06 UTC (permalink / raw)
  To: musl

On Sat, May 26, 2012 at 04:05:28PM -0500, Richard Pennington wrote:
> Hi,
> 
> I found a small bug in strrchr(). 
> [...]

Thanks! Much appreciated; I just fixed this and the other two issues
in git.

In the future, could you please send proposed fixes/improvements as
unified diff ("diff -u" or simply "git diff") instead of just pasting
the new file? It makes it a lot easier to tell what's being changed.

Rich


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: A small bug in strrchr
  2012-05-26 22:06 ` Rich Felker
@ 2012-05-26 22:12   ` Richard Pennington
  2012-05-26 22:40     ` Szabolcs Nagy
  0 siblings, 1 reply; 5+ messages in thread
From: Richard Pennington @ 2012-05-26 22:12 UTC (permalink / raw)
  To: musl

On Saturday, May 26, 2012 06:06:13 PM Rich Felker wrote:
[snip]
> In the future, could you please send proposed fixes/improvements as
> unified diff ("diff -u" or simply "git diff") instead of just pasting
> the new file? It makes it a lot easier to tell what's being changed.

I will diff from now on. I was working pretty quickly today and was a little 
lazy.

-Rich


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: A small bug in strrchr
  2012-05-26 22:12   ` Richard Pennington
@ 2012-05-26 22:40     ` Szabolcs Nagy
  2012-05-26 22:50       ` Richard Pennington
  0 siblings, 1 reply; 5+ messages in thread
From: Szabolcs Nagy @ 2012-05-26 22:40 UTC (permalink / raw)
  To: musl

i wonder how you found the bugs

are you using posixtest or you have your own set of tests?


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: A small bug in strrchr
  2012-05-26 22:40     ` Szabolcs Nagy
@ 2012-05-26 22:50       ` Richard Pennington
  0 siblings, 0 replies; 5+ messages in thread
From: Richard Pennington @ 2012-05-26 22:50 UTC (permalink / raw)
  To: musl; +Cc: musl



On May 26, 2012, at 5:40 PM, Szabolcs Nagy <nsz@port70.net> wrote:

> i wonder how you found the bugs
> 
> are you using posixtest or you have your own set of tests?

I caught these with my own set of tests. They're pretty simple right now, but I'm adding to them as I go along. 

-Rich

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2012-05-26 22:50 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-05-26 21:05 A small bug in strrchr Richard Pennington
2012-05-26 22:06 ` Rich Felker
2012-05-26 22:12   ` Richard Pennington
2012-05-26 22:40     ` Szabolcs Nagy
2012-05-26 22:50       ` Richard Pennington

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