[Bug c++/52212] friend declaration doesn't see previous friend of same function

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52212

--- Comment #7 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-02-12 17:18:38 UTC ---
I'd say that comment 3 and comment 5 are equivalent. Jonathan additionally
provided a way to fix the code.