rand() man-page ambiguous or bug in glibc?
Michael Kerrisk
mtk.lists@gmail.com
Sun Jul 20 16:27:00 GMT 2008
Eus wrote:
> Dear Michael,
>
> On Tue, Apr 29, 2008 at 4:29 PM, "Michael Kerrisk" <mtk.manpages@googlemail.com> wrote:
>
>> Folkert,
>>
>> I already responded to the earlier version of this report, and
>> described to you the fix for the man page (the evidence of your
>> program is correct; the man page was badly worded). I'm not sure why
>> you are sending this message again?!
>
> If you do not mind, would you please resend the described fix to this mailing list?
> It will certainly help me and others who would like to make the man pages better.
>
> Thank you very much.
>
>> Cheers,
>>
>> Michael
>
> Best regards,
> Eus
>
>
>
>
here it is
---------- Forwarded message ----------
From: Michael Kerrisk <mtk.manpages@googlemail.com>
Date: Mon, Apr 28, 2008 at 10:28 PM
Subject: Re: rand() man-page ambiguous or bug in glibc?
To: Folkert van Heusden <folkert@vanheusden.com>
Cc: glibc-sc@gnu.org, mtk.manpages@gmail.com, udovdh@xs4all.nl
Hello Folkert,
What interest does the glibc steering committee have in this bug report?
On Mon, Apr 28, 2008 at 8:00 PM, Folkert van Heusden
<folkert@vanheusden.com> wrote:
> Hi,
>
> The man-page says:
> The rand() function returns a pseudo-random integer between 0
> and RAND_MAX.
> "Between" says me that neither 0 or RAND_MAX should be returned but a
> simple test-program tells me otherwise.
Yes -- it is indeed poorly worded.
> #include <stdio.h>
> #include <stdlib.h>
> int main(int argc, char *argv[]){for(;;){long long int dummy=rand(); if
> (dummy == 0 || dummy == RAND_MAX)printf("value is %d\n", dummy);} return
> 0;}
At this time, I'm not taking entries for the IOCCC...
Anyway, I have changed the text to say:
"returns an integer in the range [0, RAND_MAX]"
More information about the Libc-help
mailing list