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4 Commits

Author SHA1 Message Date
Eric Fiselier
fa5a105971 Fix PR27684 - std::tuple no longer accepts reference to incomplete type in some cases. 
Libc++ has to deduce the 'allocator_arg_t' parameter as 'AllocArgT' for the
following constructor:

  template <class Alloc> tuple(allocator_arg_t, Alloc const&)

Previously libc++ has tried to support tags derived from 'allocator_arg_t' by
using 'is_base_of<AllocArgT, allocator_arg_t>'. However this breaks whenever a
2-tuple contains a reference to an incomplete type as its first parameter.

See https://llvm.org/bugs/show_bug.cgi?id=27684


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@273334 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-06-21 23:19:13 +00:00
Eric Fiselier
55ad3ac786 [libcxx] Remove the "reduced-arity-initialization" extension from the uses-allocator constructors 
Summary:
A default uses-allocator constructor has been added since that overload was previously provided by the extended constructor.

Since Clang does implicit conversion checking after substitution this constructor has to deduce the allocator_arg_t parameter so that it can prevent the evaluation of "is_default_constructible" if the first argument doesn't match. See http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1391 for more information.

This patch fixes PR24779 (https://llvm.org/bugs/show_bug.cgi?id=24779)

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19006

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@266409 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-15 03:29:40 +00:00
Eric Fiselier
f063052fe1 [libcxx] Mark most tuple tests UNSUPPORTED for c++03 and c++98. 
Summary: No declaration for the type `tuple` is given in c++03 or c++98 modes. Mark all tests that use the actual `tuple` type as UNSUPPORTED.

Reviewers: jroelofs, mclow.lists, danalbert

Reviewed By: danalbert

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D5956

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@229808 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-02-19 02:10:42 +00:00
Eric Fiselier
a90c6dd460 Move test into test/std subdirectory. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-12-20 01:40:03 +00:00