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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/55232] [C++11] ICE with -Wunused-parameter for unused parameter pack using qualified dependent name
Date: Wed, 07 Nov 2012 14:08:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55232

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-11-07 14:08:42 UTC ---
4.7.3 gives:

t.cc: In instantiation of 'void X<T>::push_back(typename T::value_type ...)
[with T = {vector}; typename T::value_type = <type error>]':
t.cc:17:20:   required from here
t.cc:9:10: warning: unused parameter 'vals#0' [-Wunused-parameter]