[PATCH] D22255: [libcxx] Create __is_alloc_constructible<Alloc, Type, Args...> trait which checks the validity of allocator_traits construction.

[Eric Fiselier via cfe-commits]

EricWF created this revision.
EricWF added a reviewer: mclow.lists.
EricWF added a subscriber: cfe-commits.

Example Usage: To check the `EmplaceConstructible` Container requirement you would ask:

`__is_alloc_constructible<allocator_type&, value_type, Args...>::value` 

http://reviews.llvm.org/D22255

Files:
  include/memory
  include/type_traits

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