[Bug c++/51464] New: [c++0x] ICE with invalid use of []

[Bug c++/51464] New: [c++0x] ICE with invalid use of []

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51464

             Bug #: 51464
           Summary: [c++0x] ICE with invalid use of []
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: reichelt@gcc.gnu.org


The following invalid code snippet triggers an ICE since GCC 4.5.0:

===========================================
template<int = sizeof([])> struct A {};
===========================================

bug.cc:1:23: error: lambda-expression in unevaluated context
bug.cc:1:24: error: definition of 'struct<lambda>' inside template parameter
list
bug.cc:1:24: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in begin_lambda_type, at cp/semantics.c:8609
Please submit a full bug report, [etc.]

[Bug c++/51464] [c++0x] ICE with invalid use of []

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51464

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2011-12-08
         AssignedTo|unassigned at gcc dot       |paolo.carlini at oracle dot
                   |gnu.org                     |com
   Target Milestone|---                         |4.7.0
     Ever Confirmed|0                           |1

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-12-08 11:09:08 UTC ---
On it.

[Bug c++/51464] [c++0x] ICE with invalid use of []

[paolo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51464

--- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2011-12-14 00:36:19 UTC ---
Author: paolo
Date: Wed Dec 14 00:36:15 2011
New Revision: 182320

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182320
Log:
/cp
2011-12-13  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/51464
    * semantics.c (begin_lambda_type): Check begin_class_definition return
    value for error_mark_node.
    * parser.c (cp_parser_lambda_expression): Check begin_lambda_type
    return value for error_mark_node.

/testsuite
2011-12-13  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/51464
    * g++.dg/cpp0x/lambda/lambda-ice6.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ice6.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/cp/semantics.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/51464] [c++0x] ICE with invalid use of []

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51464

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-12-14 00:37:05 UTC ---
Fixed.