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* [Bug libc/15366] New: Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS
@ 2013-04-13 0:32 richard at metafoo dot co.uk
2013-04-13 1:25 ` [Bug libc/15366] " ppluzhnikov at google dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: richard at metafoo dot co.uk @ 2013-04-13 0:32 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=15366
Bug #: 15366
Summary: Per C11 and C++11, <stdint.h> should not look at
__STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: unassigned@sourceware.org
ReportedBy: richard@metafoo.co.uk
CC: drepper.fsp@gmail.com
Classification: Unclassified
glibc's <stdint.h> follows C99, which says that in C++, certain macros should
only be defined if __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS is defined.
However, the C++ committee decided that they didn't want this behavior, and
explicitly overruled this in the C++11 standard (the first to provide
<stdint.h>). Consequently C11 removed these rules. glibc has not been updated
to follow the C11 rules, and still checks for those macros being defined in C++
mode.
C++ implementations are currently working around this by wrapping glibc's
<stdint.h> with one which defines these macros first. These workarounds should
not be necessary; glibc should simply not be checking for these macros. Fix
would be to remove these lines from sysdeps/generic/stdint.h:
/* The ISO C99 standard specifies that in C++ implementations these
macros should only be defined if explicitly requested. */
#if !defined __cplusplus || defined __STDC_LIMIT_MACROS
... plus the corresponding #endif and the corresponding lines for
__STDC_CONSTANT_MACROS.
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* [Bug libc/15366] Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS
2013-04-13 0:32 [Bug libc/15366] New: Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS richard at metafoo dot co.uk
@ 2013-04-13 1:25 ` ppluzhnikov at google dot com
2013-04-15 22:58 ` ppluzhnikov at google dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: ppluzhnikov at google dot com @ 2013-04-13 1:25 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=15366
Paul Pluzhnikov <ppluzhnikov at google dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ppluzhnikov at google dot
| |com
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libc/15366] Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS
2013-04-13 0:32 [Bug libc/15366] New: Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS richard at metafoo dot co.uk
2013-04-13 1:25 ` [Bug libc/15366] " ppluzhnikov at google dot com
@ 2013-04-15 22:58 ` ppluzhnikov at google dot com
2013-04-15 23:32 ` ppluzhnikov at google dot com
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: ppluzhnikov at google dot com @ 2013-04-15 22:58 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=15366
Paul Pluzhnikov <ppluzhnikov at google dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at sourceware |ppluzhnikov at google dot
|dot org |com
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libc/15366] Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS
2013-04-13 0:32 [Bug libc/15366] New: Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS richard at metafoo dot co.uk
2013-04-13 1:25 ` [Bug libc/15366] " ppluzhnikov at google dot com
2013-04-15 22:58 ` ppluzhnikov at google dot com
@ 2013-04-15 23:32 ` ppluzhnikov at google dot com
2013-05-21 14:17 ` ondra at iuuk dot mff.cuni.cz
2014-06-13 18:26 ` fweimer at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: ppluzhnikov at google dot com @ 2013-04-15 23:32 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=15366
--- Comment #1 from Paul Pluzhnikov <ppluzhnikov at google dot com> 2013-04-15 23:32:47 UTC ---
Google ref: b/8607032
Proposed patch: http://sourceware.org/ml/libc-alpha/2013-04/msg00473.html
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libc/15366] Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS
2013-04-13 0:32 [Bug libc/15366] New: Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS richard at metafoo dot co.uk
` (2 preceding siblings ...)
2013-04-15 23:32 ` ppluzhnikov at google dot com
@ 2013-05-21 14:17 ` ondra at iuuk dot mff.cuni.cz
2014-06-13 18:26 ` fweimer at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: ondra at iuuk dot mff.cuni.cz @ 2013-05-21 14:17 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=15366
OndrejBilka <ondra at iuuk dot mff.cuni.cz> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
CC| |ondra at iuuk dot
| |mff.cuni.cz
Resolution| |FIXED
--- Comment #2 from OndrejBilka <ondra at iuuk dot mff.cuni.cz> 2013-05-21 14:17:33 UTC ---
Was according to http://sourceware.org/ml/libc-alpha/2013-04/msg00677.html
commited.
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* [Bug libc/15366] Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS
2013-04-13 0:32 [Bug libc/15366] New: Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS richard at metafoo dot co.uk
` (3 preceding siblings ...)
2013-05-21 14:17 ` ondra at iuuk dot mff.cuni.cz
@ 2014-06-13 18:26 ` fweimer at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 18:26 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=15366
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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end of thread, other threads:[~2014-06-13 18:26 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2013-04-13 0:32 [Bug libc/15366] New: Per C11 and C++11, <stdint.h> should not look at __STDC_LIMIT_MACROS or __STDC_CONSTANT_MACROS richard at metafoo dot co.uk
2013-04-13 1:25 ` [Bug libc/15366] " ppluzhnikov at google dot com
2013-04-15 22:58 ` ppluzhnikov at google dot com
2013-04-15 23:32 ` ppluzhnikov at google dot com
2013-05-21 14:17 ` ondra at iuuk dot mff.cuni.cz
2014-06-13 18:26 ` fweimer at redhat dot com
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