[Bug c++/49205] Default constructor with pack expansion parameter not detected

[coppro at users dot sourceforge.net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49205

Sean Hunt <coppro at users dot sourceforge.net> changed:

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--- Comment #1 from Sean Hunt <coppro at users dot sourceforge.net> 2011-05-28 00:58:28 UTC ---
While this behavior is erroneous, consensus at clang was that WG21 made an
oversight in allowing this. Template constructors are banned from being copy or
move constructors, and historically this prohibition was not necessary for
default constructors since there was no special handling of them except when
implicit.