[Bug c++/52363] Presence/absence of -pedantic compilation affects run-time behavior

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52363

--- Comment #10 from Jason Merrill <jason at gcc dot gnu.org> 2012-04-18 
15:14:58 UTC ---
std::is_assignable uses SFINAE, so it should always act pedantic, and the
assert should fail.