Re: &array[0] vs array
On Thu, Mar 30, 2017 at 09:04:35AM -0400, Ruben Safir wrote: > On 03/29/2017 08:30 PM, Tobin C. Harding wrote: > > Does the kernel community have a preference when using the address of > > the first element of an an array? > > > > 1. addr = &array[0] > > 2. addr = array; > > > > $ grep '\&.*\[0\]' | wc -l > > 10077 > > > > style (1) is clearly used, I was not able to grep for instances where > > style (2) is used. > > maybe there is a another reason why 2 is not used. > the second form is used - just not quite as often with the below quick (and probably incomplete) coccinelle script you can find a few hundred occurences of the second form in linux-next virtual report @v2@ identifier array,addr; type T; position p; @@ ( * T array[]; | * T array[] = ...; ) ... * addr = array@p @script:python@ p << v2.p; @@ print "%s:%s" % (p[0].file,p[0].line) If its really obvious that its an array that you are manipulating maybe the second version is fine - if its not so obvious the first version makes it clear - and as readability is a key issue for any complex code I suspect that readability explains the preference. thx! hofrat ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: &array[0] vs array
On 03/29/2017 08:30 PM, Tobin C. Harding wrote: > Does the kernel community have a preference when using the address of > the first element of an an array? > > 1. addr = &array[0] > 2. addr = array; > > $ grep '\&.*\[0\]' | wc -l > 10077 > > style (1) is clearly used, I was not able to grep for instances where > style (2) is used. maybe there is a another reason why 2 is not used. -- So many immigrant groups have swept through our town that Brooklyn, like Atlantis, reaches mythological proportions in the mind of the world - RI Safir 1998 http://www.mrbrklyn.com DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002 http://www.nylxs.com - Leadership Development in Free Software http://www2.mrbrklyn.com/resources - Unpublished Archive http://www.coinhangout.com - coins! http://www.brooklyn-living.com Being so tracked is for FARM ANIMALS and and extermination camps, but incompatible with living as a free human being. -RI Safir 2013 ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Error while sending a mail from mutt
> How do I see what arguments are being sent by mutt to sendmail. In ~/.muttrc, where it says set sendmail=... Replace the argument with your custom script which logs all arguments passed to it. > Is there any quicker way by which I can get mutt working fine. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Error while sending a mail from mutt
On Wed, Mar 29, 2017 at 10:32 PM, AYAN KUMAR HALDER wrote: > Hi, > > I am trying to send a mail using mutt. I am getting the error as follows :- > > SMTP session failed: 501 5.5.4 > > I understand the error meant that a valid mail transaction protocol > was used with invalid arguments. Please let me know how do I debug > this issue further. > > Regards, > Ayan Kumar Halder > > ___ > Kernelnewbies mailing list > Kernelnewbies@kernelnewbies.org > https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies I've set up mutt to use Gmail using the instructions given here: https://dev.mutt.org/trac/wiki/UseCases/Gmail https://wiki.archlinux.org/index.php/mutt#Summary Hope this helps. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Error while sending a mail from mutt
On Thu, Mar 30, 2017 at 3:15 AM, Okash Khawaja wrote: > >> On 29 Mar 2017, at 21:19, Jim Davis wrote: >> >> On Wed, Mar 29, 2017 at 12:32 PM, AYAN KUMAR HALDER >> wrote: >>> Hi, >>> >>> I am trying to send a mail using mutt. I am getting the error as follows :- >>> >>> SMTP session failed: 501 5.5.4 >>> >>> I understand the error meant that a valid mail transaction protocol >>> was used with invalid arguments. Please let me know how do I debug >>> this issue further. >> >> Mutt usually invokes some other program to send mail -- on my >> workstation, for instance, that other program is /usr/sbin/sendmail: >> >> [jim@krebstar ~]$ mutt -v | grep '^SENDMAIL' >> SENDMAIL="/usr/sbin/sendmail" >> >> so to debug a similar problem on my workstation I'd first look to see >> where sendmail (or whatever program your mutt installation uses) logs >> its messages. >> >> That used to be in /var/log/maillog or such; nowadays you might have >> to run journalctl instead. >> >> For example, if I try >> >> mutt postmas...@example.com > >> on my workstation, then >> >> journalctl | grep sendmail >> >> tells me >> >> Mar 29 12:59:06 krebstar.arl.arizona.edu sendmail[27263]: >> v2TJx61J027263: to=postmas...@example.com, ctladdr=jim (1000/1000), >> delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30294, >> relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection >> refused by [127.0.0.1] >> >> which reminds me I don't actually have the sendmail service running. > > You can check ~/.muttrc file to see what it is using to send emails. If it is > using sendmail or esmtp, then in .muttrc file where it specifies sending > program you can append -X /path/to/log/file. That will output the whole SMTP > dialog to that log file. In my case, I get the following error messages in /var/log/mail.log Mar 30 15:39:55 ayankh-X553SA postfix/sendmail[24765]: fatal: usage: sendmail [options] Mar 30 15:40:17 ayankh-X553SA postfix/sendmail[24891]: fatal: usage: sendmail [options] How do I see what arguments are being sent by mutt to sendmail. Is there any quicker way by which I can get mutt working fine. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
