[v3] add max_size and rebind to __alloc_traits

[Jonathan Wakely <jwakely dot gcc at gmail dot com>]

2011-10-04  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/ext/alloc_traits.h (__alloc_traits::max_size): Define.
	(__alloc_traits::rebind): Define.
	* include/bits/stl_vector.h: Use them.
	* testsuite/util/testsuite_allocator.h (SimpleAllocator): Define.
	* testsuite/23_containers/vector/allocator/minimal.cc: New.
	* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc:
	Adjust dg-error line numbers.
	* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc:
	Likewise.
	* testsuite/23_containers/vector/requirements/dr438/
	constructor_1_neg.cc: Likewise.
	* testsuite/23_containers/vector/requirements/dr438/
	constructor_2_neg.cc: Likewise.

This adds some more members to the alloc_traits compatibility layer
and uses them in std::vector.  This allows std::vector to be used with
a minimal C++11 allocator, as shown in the example in
[allocator.requirements] (N.B. LWG 2065 will add the equality
operators.)  That minimal allocator has been added to the testsuite.

Tested x86_64-linux, committed to trunk.

Attachment: atr.txt
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