allocator.h (allocator_arg_t, [...]): Add.

2010-09-27  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/allocator.h (allocator_arg_t, allocator_arg,
	uses_allocator): Add.
	* testsuite/20_util/uses_allocator/value.cc: New.
	* testsuite/20_util/uses_allocator/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/uses_allocator/requirements/
	explicit_instantiation.cc: Likewise.
	* include/bits/stl_queue.h (uses_allocator<queue>,
	uses_allocator<priority_queue>): Add.
	* include/bits/stl_stack.h (uses_allocator<stack>): Likewise.

	* include/bits/stl_pair.h (piecewise_construct): Add.
	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Adjust dg-error
	line number.

From-SVN: r164654