[Bug c++/53307] internal crash with variadic templates and decltype

[chesstr at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53307

chesstr at hotmail dot com changed:

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--- Comment #1 from chesstr at hotmail dot com 2012-05-10 17:16:47 UTC ---
Created attachment 27366
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27366
better test case

It turns out, if the length of parameter pack arg3s... is 0 this bug occurs, if
it is not 0 then gcc compiles without any problem.