public inbox for glibc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "madcoder at debian dot org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sources.redhat.com
Subject: [Bug libc/4342] New: scanf %lg problem with hex numbers
Date: Tue, 10 Apr 2007 21:22:00 -0000	[thread overview]
Message-ID: <20070410222210.4342.madcoder@debian.org> (raw)

scanf makes exponents specifiers mandatory whereas it should not. The code to 
reproduce the problem is:



#include <stdio.h>

int
main (void)
{
    double d = -999;
    int  ret;

    ret =  sscanf ("0x100", "%lg", &d);
    printf ("%d %g\n", ret, d);

    ret =  sscanf ("0x100p0", "%lg", &d);
    printf ("%d %g\n", ret, d);

    return 0;
}


expected output would be:
1 256
1 256

it gives currently:
0 -999
1 256

-- 
           Summary: scanf %lg problem with hex numbers
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: madcoder at debian dot org
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=4342

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.


             reply	other threads:[~2007-04-10 21:22 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-10 21:22 madcoder at debian dot org [this message]
2007-04-23 12:45 ` [Bug libc/4342] " jakub at redhat dot com
2007-04-27 19:29 ` drepper at redhat dot com
2007-07-12 15:14 ` cvs-commit at gcc dot gnu dot org

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=20070410222210.4342.madcoder@debian.org \
    --to=sourceware-bugzilla@sourceware.org \
    --cc=glibc-bugs@sources.redhat.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).