[Bug c++/50431] New: lambda bug for array size def

[zhudiqi at 163 dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50431

             Bug #: 50431
           Summary: lambda bug for array size def
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: zhud...@163.com


This code is OK,
OK:
  constexpr auto sz = []()->long { return 100L; };
  int arr1[sz()];

  int arr2[[]()->long { return 100L; }()];

But these code will failed for g++ compiler 4.6.1.

BUG1:
  auto sz = []()->constexpr long { return 100L; };
  int arr[[]()->long { return 100L; }];

BUG2:
  //feature.cpp:51:38: internal compiler error: Segmentation fault
  int arr[[]()->long { return 100L; }];