[Bug c++/51213] [C++11][DR 1170] Access control checking has to be done under SFINAE conditions

[mizvekov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51213

--- Comment #19 from Matheus Izvekov <mizvekov at gmail dot com> ---
CWG 1170 is still not correctly implemented as of gcc 4.9.1

The attached test shows just this.

Compile it with
"g++ -std=c++11 -DPUB=0 test.cc" and
"g++ -std=c++11 -DPUB=1 test.cc".

The one with PUB=0 should print 'false', while the one with PUB=1 should print
'true'.

The test works as expected with clang 3.5.