2014-01-28 Jonathan Wakely <jwakely@redhat.com>
Kyle Lippincott <spectral@google.com>
PR libstdc++/59656
* include/bits/shared_ptr.h (shared_ptr): Add new non-throwing
constructor and grant friendship to weak_ptr.
(weak_ptr::lock()): Use new constructor.
* include/bits/shared_ptr_base.h
(_Sp_counted_base::_M_add_ref_lock_nothrow()): Declare new function
and define specializations.
(__shared_count): Add new non-throwing constructor.
(__shared_ptr): Add new non-throwing constructor and grant friendship
to __weak_ptr.
(__weak_ptr::lock()): Use new constructor.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Adjust dg-error.
* testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.
Co-Authored-By: Kyle Lippincott <spectral@google.com>
From-SVN: r207180
