Launchpad has imported 6 comments from the remote bug at http://sourceware.org/bugzilla/show_bug.cgi?id=4858.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2007-07-27T18:47:33+00:00 Wirawan Purwanto wrote: Please use the following testcase: #include <stdio.h> int main(int argc, char *argv[], char *env[]) { printf("%#.4g\n", 912.98); return 0; } This code should print "913.0", but instead it only prints "913." . It lacks the trailing zeros, which should be there according to the standard C specs. I believe that this bug is reproducible on the stock version of glibc 2.6 . I have established the bug by building the 2.6 library on my local machine, then linking the program above against the newly built libc.a . Reply at: https://bugs.launchpad.net/glibc/+bug/128355/comments/2 ------------------------------------------------------------------------ On 2007-07-27T20:10:07+00:00 Jakub Jelinek wrote: This is a regression caused by the BZ#4070 fix, particularly the + else if (__builtin_expect (spec == 'g' && type == 'f' && info->alt, + 0)) + /* This is a special case: the rounded number is 1.0, + the format is 'g' or 'G', and the alternative format + is selected. This means the result must be "1.". */ + --added_zeros; hunk. It is IMHO only valid when the the integral part is all nines (or empty), i.e. when we'll need more int digits, but we don't know this at this point. For the "%#.0g", 0.956 case which got fixes that is true and similarly for "%#.4g", 999.98, but not for this "%#.4g", 912.98. Reply at: https://bugs.launchpad.net/glibc/+bug/128355/comments/4 ------------------------------------------------------------------------ On 2007-07-29T00:26:36+00:00 Drepper-fsp wrote: Fixed in cvs. Reply at: https://bugs.launchpad.net/glibc/+bug/128355/comments/5 ------------------------------------------------------------------------ On 2007-07-31T02:06:08+00:00 Drepper-fsp wrote: *** Bug 4869 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/glibc/+bug/128355/comments/7 ------------------------------------------------------------------------ On 2007-07-31T12:43:00+00:00 Cvs-commit wrote: Subject: Bug 4858 CVSROOT: /cvs/glibc Module name: libc Branch: glibc-2_6-branch Changes by: [email protected] 2007-07-31 12:42:39 Modified files: . : ChangeLog stdio-common : printf_fp.c tfformat.c Log message: 2007-07-31 Jakub Jelinek <[email protected]> * stdio-common/tfformat.c (sprint_doubles): Add 12 new tests. 2007-07-28 Ulrich Drepper <[email protected]> [BZ #4858] * stdio-common/printf_fp.c (___printf_fp): Fix special case of #.0g and value rounded to 1.0. * stdio-common/tfformat.c (sprint_doubles): Add two new tests. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/libc/ChangeLog.diff?cvsroot=glibc&only_with_tag=glibc-2_6-branch&r1=1.10640.2.1&r2=1.10640.2.2 http://sourceware.org/cgi-bin/cvsweb.cgi/libc/stdio-common/printf_fp.c.diff?cvsroot=glibc&only_with_tag=glibc-2_6-branch&r1=1.63&r2=1.63.2.1 http://sourceware.org/cgi-bin/cvsweb.cgi/libc/stdio-common/tfformat.c.diff?cvsroot=glibc&only_with_tag=glibc-2_6-branch&r1=1.10&r2=1.10.2.1 Reply at: https://bugs.launchpad.net/glibc/+bug/128355/comments/8 ------------------------------------------------------------------------ On 2007-07-31T12:44:40+00:00 Cvs-commit wrote: Subject: Bug 4858 CVSROOT: /cvs/glibc Module name: libc Branch: glibc-2_5-branch Changes by: [email protected] 2007-07-31 12:44:28 Modified files: . : ChangeLog stdio-common : printf_fp.c tfformat.c Log message: 2007-07-31 Jakub Jelinek <[email protected]> * stdio-common/tfformat.c (sprint_doubles): Add 12 new tests. 2007-07-28 Ulrich Drepper <[email protected]> [BZ #4858] * stdio-common/printf_fp.c (___printf_fp): Fix special case of #.0g and value rounded to 1.0. * stdio-common/tfformat.c (sprint_doubles): Add two new tests. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/libc/ChangeLog.diff?cvsroot=glibc&only_with_tag=glibc-2_5-branch&r1=1.10362.2.96&r2=1.10362.2.97 http://sourceware.org/cgi-bin/cvsweb.cgi/libc/stdio-common/printf_fp.c.diff?cvsroot=glibc&only_with_tag=glibc-2_5-branch&r1=1.58.2.3&r2=1.58.2.4 http://sourceware.org/cgi-bin/cvsweb.cgi/libc/stdio-common/tfformat.c.diff?cvsroot=glibc&only_with_tag=glibc-2_5-branch&r1=1.7.8.2&r2=1.7.8.3 Reply at: https://bugs.launchpad.net/glibc/+bug/128355/comments/9 ** Changed in: glibc Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/128355 Title: libc6 printf "alternate format" %#.g prints wrong number of digits -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
