[Bug c++/51489] constexpr not working consistently

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51489

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-12-19 
05:57:58 UTC ---
Author: jason
Date: Mon Dec 19 05:57:52 2011
New Revision: 182470

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182470
Log:
    PR c++/51489
    * semantics.c (cxx_eval_outermost_constant_expr): Check for
    conversion from pointer to integer here.
    (cxx_eval_constant_expression) [NOP_EXPR]: Not here.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-ptrsub.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/semantics.c
    trunk/gcc/testsuite/ChangeLog