2011-09-11 Daniel Krugler <daniel.kruegler@googlemail.com>
PR libstdc++/50159
* include/std/tuple (tuple_cat): Reimplement according to the
resolution of LWG 1385.
* include/std/type_traits: Define __and_ and __or_ for zero
arguments too; minor tweaks.
* testsuite/20_util/tuple/creation_functions/tuple_cat.cc: New.
* testsuite/20_util/tuple/creation_functions/constexpr.cc: Disable
for now tuple_cat test.
* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error
line numbers.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Likewise.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
Likewise.
* doc/xml/manual/status_cxx200x.xml: Update.
From-SVN: r178770
