bitmap_allocator.h: Qualify ::operator delete.

bitmap_allocator.h: Qualify ::operator delete.

2004-10-15  Paolo Carlini  <pcarlini@suse.de>

	* include/ext/bitmap_allocator.h: Qualify ::operator delete.
	* src/bitmap_allocator.cc: Likewise.
	* src/mt_allocator.cc: Use ::operator delete, not delete,
	consistently with ::operator new.

	* include/ext/bitmap_allocator.h (deallocate): Check for null
	pointer.
	* testsuite/ext/bitmap_allocator/check_deallocate_null.cc: New.
	* testsuite/testsuite_allocator.h (check_deallocate_null): Add test.

From-SVN: r89089