Michael Park 3762fe69d2 Implement LWG 2904. ...

Summary:
- Removed the move-constructibe requirement from copy-assignable.
- Updated `__assign_alt` such that we direct initialize if
  `_Tp` can be `nothrow`-constructible from `_Arg`, or `_Tp`'s
  move construction can throw. Otherwise, construct a temporary and move it.
- Updated the tests to remove the pre-LWG2904 path.

Depends on D32671.

Reviewers: EricWF, CaseyCarter

Reviewed By: EricWF

Differential Revision: https://reviews.llvm.org/D33965

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@304891 91177308-0d34-0410-b5e6-96231b3b80d8

2017-06-07 10:22:43 +00:00

..

variant.bad_variant_access

Add markup for libc++ dylib availability

2017-05-04 17:08:54 +00:00

variant.general

Add <variant> tests but disable them for libc++

2016-11-23 01:02:51 +00:00

variant.get

Add markup for libc++ dylib availability

2017-05-04 17:08:54 +00:00

variant.hash

Worked around GCC bug 56480. Explicit specialization in a different namespace.

2017-03-23 06:21:24 +00:00

variant.helpers

Implement C++17 <variant>. Patch from Michael Park!

2016-12-02 23:00:05 +00:00

variant.monostate

Add <variant> tests but disable them for libc++

2016-11-23 01:02:51 +00:00

variant.monostate.relops

Implement C++17 <variant>. Patch from Michael Park!

2016-12-02 23:00:05 +00:00

variant.relops

Implement C++17 <variant>. Patch from Michael Park!

2016-12-02 23:00:05 +00:00

variant.synopsis

Add <variant> tests but disable them for libc++

2016-11-23 01:02:51 +00:00

variant.variant

Implement LWG 2904.

2017-06-07 10:22:43 +00:00

variant.visit

Fix std::visit for the zero variants case.

2017-05-11 07:17:12 +00:00