shared_ptr.h: Default copy ctor and assignment.

shared_ptr.h: Default copy ctor and assignment.

2012-01-03  Chase Douglas  <chase.douglas@canonical.com>
	    Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/bits/shared_ptr.h: Default copy ctor and assignment.
	* include/bits/shared_ptr_base.h: Likewise.
	* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Adjust dg-error
	line numbers.
	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Likewise.

Co-Authored-By: Jonathan Wakely <jwakely.gcc@gmail.com>
From-SVN: r182859