[Bug c++/52748] [C++11] N3276 changes to decltype

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52748

--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2013-03-17 02:37:21 UTC ---
Author: jason
Date: Sun Mar 17 02:37:09 2013
New Revision: 196736

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196736
Log:
    N3276
    PR c++/52748
    * cp-tree.h (tsubst_flags): Add tf_decltype.
    * call.c (build_cxx_call): Don't build a temporary if it's set.
    (build_over_call): Make sure it's only passed to build_cxx_call.
    * parser.c (cp_parser_primary_expression): Add decltype_p parm.
    (cp_parser_unary_expression): Likewise.
    (cp_parser_cast_expression): Likewise.
    (cp_parser_binary_expression): Likewise.
    (cp_parser_assignment_expression): Likewise.
    (cp_parser_postfix_expression): Likewise.  Pass tf_decltype.
    (cp_parser_explicit_instantiation): Add decltype_p.  Force a
    temporary for a call on the LHS of a comma.
    (cp_parser_decltype): Pass true to decltype_p parms.
    * pt.c (tsubst) [DECLTYPE_TYPE]: Pass tf_decltype.
    (tsubst_copy_and_build): Pass tf_decltype down only for
    CALL_EXPR and the RHS of COMPOUND_EXPR.
    * tree.c (build_cplus_new): Call complete_type_or_maybe_complain.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/decltype-call1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/parser.c
    trunk/gcc/cp/pt.c
    trunk/gcc/cp/tree.c