[Bug c++/14365] New: gdb crashes when checking ctor of lambdas (in is_ctor_or_dtor)

[marco.trevisan at canonical dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14365

             Bug #: 14365
           Summary: gdb crashes when checking ctor of lambdas (in
                    is_ctor_or_dtor)
           Product: gdb
           Version: 7.4
            Status: NEW
          Severity: critical
          Priority: P2
         Component: c++
        AssignedTo: unassigned@sourceware.org
        ReportedBy: marco.trevisan@canonical.com
    Classification: Unclassified


Created attachment 6531
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6531
gdb-fix-crash-when-checking-for-ctor-of-lambda by Thomas Voß

Using GDB to debug this test case: http://pastebin.ubuntu.com/1062024/ causes
it to crash in is_ctor_or_dtor.

Attached here patch by Thomas Voß that fixes it.

This is description:
«It turns out that gdb crashes as it tries to determine whether a field of a
lambda is a or ctor/dtor, given the fields name. Apparently, the field's name
is NULL and I added a check for that, bailing out and returning 0 ("no, this is
neither a dtor nor a ctor"). GDB behaves normally when being run on the test
program mentioned before. Patch is attached, generated with quilt.»

See launchpad bug http://pad.lv/1006860 for reference.

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