[Bug c++/49172] [C++0x][constexpr] References should be declarable with constexpr

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49172

--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-22 
04:18:08 UTC ---
Author: jason
Date: Wed Jun 22 04:18:02 2011
New Revision: 175284

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175284
Log:
    PR c++/49172
    * decl.c (cp_finish_decl): Adjust init_const_expr_p for refs.
    (grokdeclarator): constexpr doesn't apply const for refs.
    * parser.c (cp_parser_initializer_clause): Don't call
    maybe_constant_value here.
    * call.c (initialize_reference): Handle constexpr.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-ref1.C
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-ref2.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-ice2.C