[Bug c++/69673] New: Can't pass members in lambda capture list

[petschy at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69673

            Bug ID: 69673
           Summary: Can't pass members in lambda capture list
           Product: gcc
           Version: 5.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: petschy at gmail dot com
  Target Milestone: ---

struct A
{
        int i;
};

void foo(A& a)
{
        auto l = [&a.i]() { };
}

void bar(A& a)
{
        auto& i = a.i;
        auto l = [&i]() { };
}

void baz()
{
        A a;
        auto l = [&a.i]() { };
}
---8<---8<---8<---

Only bar() compiles, the other two functions fail : 
g++-5.3.1 -std=c++11 20160204-lambda.cpp
error: expected ‘,’ before ‘.’ token
  auto l = [&a.i]() { };
              ^

Every gcc version I tried failed: 4.7.4, 4.8.4, 4.9.2, 5.3.1, 6.0.0

g++-5.3.1 -v
Using built-in specs.
COLLECT_GCC=g++-5.3.1
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/5.3.1/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --enable-languages=c,c++ --disable-multilib
--program-suffix=-5.3.1 --with-build-config=my-bootstrap-O3-native
Thread model: posix
gcc version 5.3.1 20160204 (GCC)

Regards, Peter