[Bug c++/56135] New: [c++11] this incorrectly captured as null in template member function

[arnetheduck at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56135



             Bug #: 56135

           Summary: [c++11] this incorrectly captured as null in template

                    member function

    Classification: Unclassified

           Product: gcc

           Version: 4.7.2

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: c++

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: arnethed...@gmail.com





Created attachment 29298

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29298

Test case showing broken capture of this



When creating a lambda function in a template member function, when capturing

this using [=], this is not captured correctly when the lambda only calls

another template member function reusing the outer template argument.



Qualifying the call with this or not passing on the outer template argument

solves the issue.



In the attached code, I expect this to be captured in all 4 cases, but the

"broken" captures null resulting in the print out:



./test

(nil)

0x7fff1354f2af

0x7fff1354f2af

0x7fff1354f2af



GDB shows the same - this has been captured but with null as value.



clang 3.2 captures this as expected.