[Bug c++/48582] [C++0x] [DR 342] Template non-type arguments doesn't accept null pointer constant value

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48582

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-08-28 15:38:33 UTC ---
Author: jason
Date: Sun Aug 28 15:38:29 2011
New Revision: 178144

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=178144
Log:
    Core DR 342
    PR c++/48582
    * pt.c (check_valid_ptrmem_cst_expr): A null member pointer value
    is valid in C++11.
    (convert_nontype_argument): Likewise.  Implicitly convert nullptr
    and do constant folding.
    * mangle.c (write_template_arg_literal): Mangle null member
    pointer values as 0.
    * call.c (null_member_pointer_value_p): New.
    * cp-tree.h: Declare it.

Added:
    trunk/gcc/testsuite/g++.dg/abi/mangle50.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/mangle.c
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog