[Bug c++/54891] New: [C++11] lambda-expression and explicit type conversion (cast notation)

[Bug c++/54891] New: [C++11] lambda-expression and explicit type conversion (cast notation)

[ai.azuma at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54891

             Bug #: 54891
           Summary: [C++11] lambda-expression and explicit type conversion
                    (cast notation)
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ai.azuma@gmail.com


Created attachment 28413
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28413
Output of -v option and preprocessed file

The following valid code is rejected by GCC 4.8.0 20121007, 4.7.3 20121006 and
4.6.4 20121005.

/////////////
int main()
{
  (void)[]{};
}
/////////////

For the above code, GCC 4.8.0 20121007 says;

main.cpp: In function 'int main()':
main.cpp:3:4: error: expected primary-expression before 'void'
   (void)[]{};
    ^
main.cpp:3:4: error: expected ')' before 'void'

[Bug c++/54891] [C++11] lambda-expression and explicit type conversion (cast notation)

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54891

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-05-21
             Blocks|                            |54367
     Ever confirmed|0                           |1

[Bug c++/54891] [C++11] lambda-expression and explicit type conversion (cast notation)

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54891

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Mine.

[Bug c++/54891] [C++11] lambda-expression and explicit type conversion (cast notation)

[paolo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54891

--- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Mon Jun 30 18:30:50 2014
New Revision: 212162

URL: https://gcc.gnu.org/viewcvs?rev=212162&root=gcc&view=rev
Log:
/cp
2014-06-30  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/54891
    * parser.c (cp_parser_tokens_start_cast_expression): In C++11
    a '[' can also start a primary-expression.
    (cp_parser_cast_expression): Parse a cast-expression only tentatively
    when cp_parser_tokens_start_cast_expression returns -1.

/testsuite
2014-06-30  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/54891
    * g++.dg/cpp0x/lambda/lambda-cast1.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-cast1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/54891] [C++11] lambda-expression and explicit type conversion (cast notation)

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54891

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED
           Assignee|paolo.carlini at oracle dot com    |unassigned at gcc dot gnu.org
   Target Milestone|---                         |4.10.0

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed for 4.10.0.