[Bug c++/54250] New: Segmentation fault when decltype of a struct field is used in nested lambdas

[Bug c++/54250] New: Segmentation fault when decltype of a struct field is used in nested lambdas

[linesprower at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54250

             Bug #: 54250
           Summary: Segmentation fault when decltype of a struct field is
                    used in nested lambdas
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: linesprower@gmail.com


// this code causes segmentation fault during compilation
// compiled with: g++ -std=c++0x
// compiler version: 4.6.2
// note: uncommenting 'this' fixes the problem

struct T
{
    int a;
    int foo()
    {
        return [&]()->int {
            return [&](decltype(/*this->*/a) _)->int {
                return 1;
            }(a);
        }();
    }
};

int main()
{
    return 0;
}

[Bug c++/54250] Segmentation fault when decltype of a struct field is used in nested lambdas

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54250

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-08-14
     Ever Confirmed|0                           |1

[Bug c++/54250] Segmentation fault when decltype of a struct field is used in nested lambdas

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54250

Daniel Krügler <daniel.kruegler at googlemail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |daniel.kruegler at
                   |                            |googlemail dot com

--- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-08-15 21:15:16 UTC ---
The problem still exists in gcc 4.8.trunk. Version 4.8.0 20120729
(experimental)
delivers:

7|internal compiler error: vector VEC(tree,base) index domain error, in
insert_capture_proxy at cp/semantics.c:8974

[Bug c++/54250] Segmentation fault when decltype of a struct field is used in nested lambdas

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54250

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> ---
This is fixed in mainline and 4.8.2, and I'm adding the testcase and closing
the bug.

[Bug c++/54250] Segmentation fault when decltype of a struct field is used in nested lambdas

[paolo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54250

--- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Tue Mar 18 17:10:23 2014
New Revision: 208658

URL: http://gcc.gnu.org/viewcvs?rev=208658&root=gcc&view=rev
Log:
2014-03-18  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/60305
    * g++.dg/cpp0x/constexpr-ice14.C: New.

2014-03-18  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/54250
    * g++.dg/cpp0x/lambda/lambda-ice12.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-ice14.C
    trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ice12.C
Modified:
    trunk/gcc/testsuite/ChangeLog

[Bug c++/54250] Segmentation fault when decltype of a struct field is used in nested lambdas

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54250

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
      Known to work|                            |4.8.2, 4.9.0
         Resolution|---                         |FIXED

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed.