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Tested on Linux-PPC64. The problem is a tad tricky, since the bug triggered by the testcase is in a constructor that will not be used, but will cause endless meta-recursion via checking convertibility of an incomplete type that will cause further recursion. While there might be ways to fix that in the traits themselves, this is a straightforward fix, for certain tuple-specific values of "straightforward". ;) And hey, the problem and its solution were, once the bug report came in, obvious to the resident tuple-hacker between my chair and my keyboard. :) 2015-10-05 Ville Voutilainen <ville.voutilainen@gmail.com> PR 67844. * include/std/tuple (_TC::_NonNestedTuple): Eagerly reject conversions from tuple types same as the target tuple. * testsuite/20_util/tuple/67844.cc: New.
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