mt_allocator.h (__mt_alloc::deallocate): Check for null pointer.

mt_allocator.h (__mt_alloc::deallocate): Check for null pointer.

2004-10-14  Benjamin Kosnik  <bkoz@redhat.com>

	* include/ext/mt_allocator.h (__mt_alloc::deallocate): Check for
	null pointer.
	* include/ext/pool_allocator.h (debug_allocator::deallocate):
	Check pointer value.
	* include/ext/debug_allocator.h (debug_allocator::deallocate):
	Throw exceptions, don't abort.
	* include/ext/array_allocator.h
	(array_allocator_base::deallocate): Remove unused parameters.
	* testsuite/testsuite_allocator.h (check_deallocate_null): New.
	* testsuite/ext/mt_allocator/check_deallocate_null.cc: New.
	* testsuite/ext/mt_allocator/check_deallocate_null_thread.cc: New.
	* testsuite/ext/array_allocator/check_deallocate_null.cc: New.
	* testsuite/ext/debug_allocator/check_deallocate_null.cc: New.
	* testsuite/ext/malloc_allocator/check_deallocate_null.cc: New.
	* testsuite/ext/new_allocator/check_deallocate_null.cc: New.
	* testsuite/ext/pool_allocator/check_deallocate_null.cc: New.

	* testsuite/testsuite_allocator.h (check_new): Add instance argument.
	* testsuite/ext/array_allocator/check_new.cc: New.

From-SVN: r89060