[Bug libstdc++/68825] testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc fails to compile on powerpc64

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68825

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Dec 10 14:32:16 2015
New Revision: 231516

URL: https://gcc.gnu.org/viewcvs?rev=231516&root=gcc&view=rev
Log:
Fix dejagnu directives in shared_ptr test

        PR libstdc++/68825
        * include/experimental/bits/shared_ptr.h (__shared_ptr, __weak_ptr,
        experimental::shared_ptr, experimental::weak_ptr): Constrain
        assignment operators.
        * testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc:
        Change to a compile-only test and change dg-excess-errors to dg-error.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/experimental/bits/shared_ptr.h
   
trunk/libstdc++-v3/testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc