commit dc992be21047a4c456b7a757d323534f694c6dbe
author redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> Wed Jun 20 19:34:53 2018 +0000
committer redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> Wed Jun 20 19:34:53 2018 +0000
tree 48fbab8f2d64a4655d84cfcf5ba470a5926751bd
parent 77de2054684ceffa636be74b9918a9c5edc4d8f5

PR libstdc++/70966 make pmr::new_delete_resource() immortal

Construct the program-wide resource objects using placement new. This
means they have dynamic storage duration and won't be destroyed during
termination.

	PR libstdc++/70966
	* include/experimental/memory_resource (__resource_adaptor_imp): Add
	static assertions to enforce requirements on pointer types.
	(__resource_adaptor_imp::get_allocator()): Add noexcept.
	(new_delete_resource, null_memory_resource): Return address of an
	object with dynamic storage duration.
	(__null_memory_resource): Remove.
	* testsuite/experimental/memory_resource/70966.cc: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@261818 138bc75d-0d04-0410-961f-82ee72b054a4