All of lore.kernel.org
 help / color / mirror / Atom feed
From: Michal Nazarewicz <mina86@tlen.pl>
To: Nanakos Chrysostomos <linuxcprog@wired-net.gr>
Cc: phoenixxz <vim.xxz@gmail.com>, linux-c-programming@vger.kernel.org
Subject: Re: float
Date: Fri, 08 Jan 2010 18:11:48 +0100	[thread overview]
Message-ID: <87hbqwwmgb.fsf@erwin.mina86.com> (raw)
In-Reply-To: <4B476184.9070407@wired-net.gr> (Nanakos Chrysostomos's message of "Fri, 08 Jan 2010 18:47:00 +0200")

> On 8/1/2010 18:30, phoenixxz wrote:
>> float i=1.34;
>> printf("%f",i);
>>
>> ->> 0
>> why?

Nanakos Chrysostomos <linuxcprog@wired-net.gr> writes:
> printf("%lf",i);

%lf is actually invalid format (though glibc will gladly treat it the
 same way it treats %f).  When passing a float value to a function with
 variable number of arguments it is promoted to double.

-- 
Best regards,                                         _     _
 .o. | Liege of Serenly Enlightened Majesty of      o' \,=./ `o
 ..o | Computer Science,  Michal "mina86" Nazarewicz   (o o)
 ooo +--<mina86*tlen.pl>--<jid:mina86*jabber.org>--ooO--(_)--Ooo--

  reply	other threads:[~2010-01-08 17:11 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-08 16:30 float phoenixxz
2010-01-08  4:42 ` float Bryan Christ
2010-01-08 16:45   ` float Fawad Lateef
2010-01-08 16:40 ` float Nanakos Chrysostomos
2010-01-08 16:44 ` float Fawad Lateef
2010-01-08 16:47 ` float Nanakos Chrysostomos
2010-01-08 17:11   ` Michal Nazarewicz [this message]
2010-01-08 17:19     ` float Nanakos Chrysostomos
2010-01-08 17:21     ` float Nanakos Chrysostomos
2010-01-08 17:43       ` float Michal Nazarewicz
2010-01-08 18:00 ` float andrej.gelenberg
2010-01-08 22:05 ` float Glynn Clements
  -- strict thread matches above, loose matches on Subject: below --
2011-01-11  7:38 float ratheesh k
2011-01-11  7:46 ` float Thomas Weber
2011-01-11  7:56   ` float Amit Virdi
2011-01-11  7:55 ` float Uriel Corfa
2011-01-11  8:01   ` float Thomas Weber
2011-01-11  8:34     ` float ratheesh k
2011-01-11  8:57       ` float Thomas Weber
2011-01-11  8:38 ` float Andrej Gelenberg

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87hbqwwmgb.fsf@erwin.mina86.com \
    --to=mina86@tlen.pl \
    --cc=linux-c-programming@vger.kernel.org \
    --cc=linuxcprog@wired-net.gr \
    --cc=vim.xxz@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.