2007-07-27 Douglas Gregor <doug.gregor@gmail.com>

	* typeck.c (structural_comptypes): Compare DECLTYPE_TYPE nodes.
	* cp-tree.def (DECLTYPE_TYPE): New.
	* error.c (dump_type): Dump DECLTYPE_TYPE nodes.
	(dump_type_prefix): Ditto.
	(dump_type_suffix): Ditto.
	* tree.c (DECLTYPE_TYPE): Walk DECLTYPE_TYPE nodes.
	* mangle.c (write_type): Handle DECLTYPE_TYPE.
	* cp-tree.h (IS_AGGR_TYPE): DECLTYPE_TYPE nodes can be aggregate
	types.
	(DECLTYPE_TYPE_EXPR): New.
	(DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P): New.
	(finish_declared_type): Declare.
	* cxx-pretty-print.c (pp_cxx_type_specifier_seq): Print
	DECLTYPE_TYPE nodes.
	(pp_cxx_type_id): Ditto.
	* pt.c (for_each_template_parm_r): Walk DECLTYPE_TYPE children.
	(tsubst): Substitute into a DECLTYPE_TYPE node.
	(tsubst_copy): Ditto.
	(unify): Cannot deduce anything from TYPEOF_TYPE or DECLTYPE_TYPE
	nodes.
	(dependent_type_p_r): DECLTYPE_TYPE types are always dependent.
	* semantics.c (finish_typeof): TYPEOF_TYPE types need to use
	structural equality (because we can't hash the expressions).
	(finish_declared_type): New.
	* lex.c (reswords): Add "decltype" keyword.
	* parser.c cp_lexer_next_token_is_decl_specifier_keyword
	(cp_parser_postfix_expression): Add member_access_only_p to
	restrict postfix expression to member access expressions.
	(cp_parser_unary_expression): Update call to
	cp_parser_postfix_expression to reflect new parameter.
	(cp_parser_declared_type): New.
	(cp_parser_simple_type_specifier): Parse decltype types.

2007-07-27  Douglas Gregor  <doug.gregor@gmail.com>
	
       * c-common.h (enum rid): Add RID_DECLTYPE, update RID_LAST_CXX0X.

2007-07-27  Douglas Gregor  <doug.gregor@gmail.com>

	* g++.dg/cpp0x/decltype1.C: New.
	* g++.dg/cpp0x/decltype2.C: New.
	* g++.dg/cpp0x/decltype3.C: New.
	* g++.dg/cpp0x/decltype4.C: New.
	* g++.dg/cpp0x/decltype5.C: New.
	* g++.dg/cpp0x/decltype6.C: New.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@126991 138bc75d-0d04-0410-961f-82ee72b054a4

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