[Bug libstdc++/61947] [4.8/4.9/4.10 Regression] Ambiguous calls when constructing std::tuple

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61947

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Tue Jul 29 17:30:34 2014
New Revision: 213221

URL: https://gcc.gnu.org/viewcvs?rev=213221&root=gcc&view=rev
Log:
    PR libstdc++/61947
    * include/std/tuple (_Head_base): Use allocator_arg_t parameters to
    disambiguate unary constructors.
    (_Tuple_impl): Pass allocator_arg_t arguments.
    * testsuite/20_util/tuple/61947.cc: New.
    * testsuite/20_util/uses_allocator/cons_neg.cc: Adjust dg-error line.

Added:
    trunk/libstdc++-v3/testsuite/20_util/tuple/61947.cc
      - copied, changed from r213220,
trunk/libstdc++-v3/testsuite/20_util/uses_allocator/cons_neg.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/std/tuple
    trunk/libstdc++-v3/testsuite/20_util/uses_allocator/cons_neg.cc