[Bug c++/51282] New: [regression] error: unable to find string literal operator ‘operator"" on string literal concatenation

[Bug c++/51282] New: [regression] error: unable to find string literal operator ‘operator"" on string literal concatenation

[mutz at kde dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51282

             Bug #: 51282
           Summary: [regression] error: unable to find string literal
                    operator ‘operator"" on string literal concatenation
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: mutz@kde.org


Current trunk (well, a few days old):

error: unable to find string literal operator ‘operator"" DIR_SEPARATOR_STRING’

In this line:
  "abc"DIR_SEPARATOR_STRING"hallo.xxx"
where
  #define DIR_SEPARATOR_STRING "/"

This can be fixed by adding whitespace around DIR_SEPARATOR_STRING, but Qt's
SIGNAL/SLOT macros cannot be fixed that way (there, the concatenation of the
string literals appears in the macro definition, and adding extra whitespace
doesn't help there).

[Bug c++/51282] [regression] error: unable to find string literal operator ‘operator"" on string literal concatenation

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51282

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-11-23 11:10:50 UTC ---
dup of PR 50917 ?

[Bug c++/51282] [regression] error: unable to find string literal operator ‘operator"" on string literal concatenation

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51282

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-11-23 11:11:46 UTC ---
in any case, please provide a complete testcase - noone is going to download
and configure Qt to investigate this

http://gcc.gnu.org/bugs/

[Bug c++/51282] [regression] error: unable to find string literal operator ‘operator"" on string literal concatenation

[marc.glisse at normalesup dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51282

Marc Glisse <marc.glisse at normalesup dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marc.glisse at normalesup
                   |                            |dot org

--- Comment #3 from Marc Glisse <marc.glisse at normalesup dot org> 2011-11-23 11:45:32 UTC ---
Is this about:
https://bugreports.qt.nokia.com/browse/QTBUG-22847
?

Adding whitespace does seem to help.

[Bug c++/51282] [regression] error: unable to find string literal operator ‘operator"" on string literal concatenation

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51282

Markus Trippelsdorf <markus at trippelsdorf dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |markus at trippelsdorf dot
                   |                            |de

--- Comment #4 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2011-11-23 12:16:38 UTC ---
Yes the space is mandatory in C++11.
See:
https://groups.google.com/forum/#!topic/comp.std.c++/9nD4Mb8pN1Q/discussion
Or: https://bugzilla.mozilla.org/show_bug.cgi?id=698264#c9

[Bug c++/51282] [regression] error: unable to find string literal operator ‘operator"" on string literal concatenation

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51282

Paolo Carlini <paolo.carlini at oracle dot com> changed:

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

--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-11-23 13:10:19 UTC ---
Thus, if the whitespace is mandatory and -std=c++0x (or -std=c++11) is used on
the command line (submitter doesn't say this explicitly) this PR is invalid.

*** This bug has been marked as a duplicate of bug 50917 ***

[Bug c++/51282] [regression] error: unable to find string literal operator ‘operator"" on string literal concatenation

[mutz at kde dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51282

--- Comment #6 from mutz at kde dot org 2011-11-23 14:35:52 UTC ---
I was confused that I had applied the patch to Qt, but it still failed to
compile. I since learned that the unpatched code was still lurking in the PCH,
so yes, this is invalid.

Sorry, and thanks.