[Bug libstdc++/33935] New: overloads in C headers

[Bug libstdc++/33935] New: overloads in C headers

[jsm28 at gcc dot gnu dot org]

The C++ standard defines the C headers such as <string.h> and <wchar.h> in
terms of their C++ versions such as <cstring> and <cwchar>, which in turn are
defined in terms of the headers in the C standard.

Thus, <string.h> and <wchar.h> require the function overloads for functions
such as strchr and wcschr that are defined to be in <cstring> and <cwchar>. 
However, libstdc++ defines these only in <cstring> and <cwchar>, not in
<string.h> and <wchar.h>.

libstdc++ needs to wrap the headers provided by the C library, or otherwise
cooperate with glibc and other C library implementations, to get the required
C++ definitions in place.

This is different from bug 6257, and unlike that bug this one appears still to
be a bug with the current C++0x draft.


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           Summary: overloads in C headers
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jsm28 at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33935

[Bug libstdc++/33935] overloads in C headers

[pcarlini at suse dot de]

------- Comment #1 from pcarlini at suse dot de  2007-10-29 01:09 -------
Yes, in some sense the resolution of DR 456 doesn't consider strchr and co.
Some time ago I mentioned that in private email with Howard but then didn't
really pursue it. Will do, maybe at one of the next C++ meetings.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33935

[Bug libstdc++/33935] overloads in C headers

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-12-02 22:25 -------
Confirmed.


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-12-02 22:25:07
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33935

[Bug libstdc++/33935] overloads in C headers

[paolo dot carlini at oracle dot com]

------- Comment #3 from paolo dot carlini at oracle dot com  2009-01-30 12:08 -------
This is really the same as libstdc++/30928.

*** This bug has been marked as a duplicate of 30928 ***


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paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33935

[Bug libstdc++/33935] overloads in C headers

[paolo dot carlini at oracle dot com]

------- Comment #4 from paolo dot carlini at oracle dot com  2010-01-14 20:47 -------
Let's keep this one open instead, as a reminder that the libcs of non-GNU
targets have to provide a mechanism similar to the one used by recent glibcs:

  http://gcc.gnu.org/viewcvs?view=revision&revision=143773

and which we can exploit in the C++ library.


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|DUPLICATE                   |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33935

[Bug libstdc++/33935] overloads in C headers

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33935

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-05-18 10:08:22 UTC ---
*** Bug 49020 has been marked as a duplicate of this bug. ***

[Bug libstdc++/33935] overloads in C headers

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33935

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-05-17 12:22:25 UTC ---
*** Bug 49020 has been marked as a duplicate of this bug. ***