[Bug 207918] C++ ostream operator << broken for unsigned long long when using showbase with octal format
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Tue May 9 17:02:14 UTC 2017
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207918
--- Comment #13 from commit-hook at freebsd.org ---
A commit references this bug:
Author: dim
Date: Tue May 9 17:01:25 UTC 2017
New revision: 318032
URL: https://svnweb.freebsd.org/changeset/base/318032
Log:
MFC r317888:
Pull in r302362 from upstream libc++ trunk (by me):
Ensure showbase does not overflow do_put buffers
Summary:
In https://bugs.freebsd.org/207918, Daniel McRobb describes how using
std::showbase with ostreams can cause truncation of unsigned long long
when output format is octal. In fact, this can even happen with
unsigned int and unsigned long.
To ensure this does not happen, add one additional character to the
do_put buffers if std::showbase is on. Also add a test case.
Reviewers: EricWF, mclow.lists
Reviewed By: EricWF
Subscribers: cfe-commits, emaste
Differential Revision: https://reviews.llvm.org/D32670
PR: 207918
Changes:
_U stable/11/
stable/11/contrib/libc++/include/locale
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