changelog

gcc-2.95.3 Linux下最常用的C编译器

	(cat_namespace_levels): Remove.
	* decl2.c: Include splay-tree.h and varray.h.
	(priority_info_s): New structure.
	(finish_vtable_vardecl): Change prototype.  Adjust for new calling
	conventions.
	(prune_vtable_vardecl): Likewise.
	(finish_sigtable_vardecl): Likewise.
	(setup_initp): Remove.
	(do_dtors): Remove.
	(do_ctors): Remove.
	(start_static_storage_duration_function): New function.
	(generate_inits_for_priority): Likewise.
	(finish_static_storage_duration_function): Likewise.
	(get_priority_info): Likewise.
	(do_static_initialization): Likewise.
	(do_static_destruction): Likewise.
	(do_static_initialization_and_destruction): Likewise.
	(generate_ctor_or_dtor_function): Likewise.
	(generate_ctor_and_dtor_functions_for_priority): Likewise.
	(pending_statics): Make it a varray.
	(pending_statics_used): New variable.
	(saved_inlines): Make it a varray.
	(saved_inlines_used): New variable.
	(finish_static_data_member): Change method of updating
	pending_statics. 
	(mark_inline_for_output): Remove #if 0'd code.  Change method of
	updating saved_inlines.
	(walk_vtables): Remove.
	(walk_sigtables): Likewise.
	(import_export_decl): Use DECL_TINFO_FN_P.
	(pending_templates): Remove declaration.
	(maybe_templates): Likewise.
	(static_aggregates_initp): Likewise.
	(setup_initp): Likewise.
	(finish_objects): Simplify.
	(INITIALIZE_P_IDENTIFIER): New macro.
	(PRIORITY_IDENTIFIER): New macro.
	(SSDF_IDENTIFIER): New macro.
	(initialize_p_decl): New variable.
	(priority_decl): Likewise.
	(ssdf_decl): Likewise.
	(priority_info_map): Likewise.
	(finish_file): Recode output of static intializers and other
	file-scope finalization tasks.
	* error.c (OB_END_TEMPLATE_ID): New macro.
	(dump_type_real): Use it.
	(dump_decl): Likewise.
	(dump_function_name): Likewise.
	* lex.c (set_typedecl_interface_info): Adjust for new walk_globals
	interface.
	(check_newline): Use walk_globals, not walk_vtables.
	* pt.c (pending_tempalte_expansions): Remove.
	(set_vardecl_interface_info): Likewise.
	(pending_templates): Make static.
	(maybe_templates): Likewise.
	(instantiate_class_template): Adjust call to finish_struct_1.
	(instantiate_pending_templates): New function.
	* rtti.c (get_tinfo_fn): Use SET_DECL_TINFO_FN_P.
	* tree.c (static_aggregates_initp): Remove.
	(cp_valid_lang_attribute): Don't use it; use DECL_INIT_PRIORITY
	instead.
	* Makefile.in (decl2.o): Depend on varray.h and splay-tree.h.

	* gxx.gperf (RETURN): Rename to RETURN_KEYWORD to avoid clashes
	with the RTL code RETURN.
	* hash.h: Regenerated.
	* lex.c (reinit_parse_for_block): Use RETURN_KEYWORD.
	* parse.y: Replace RETURN with RETURN_KEYWORD throughout.
	* parse.c: Regenerated.
	* pt.c: Include varray.h.  Include rtl.h since varray.h requires
	it.
	(inline_parm_levels): New variable.
	(inline_parm_levels_used): Likewise.
	(maybe_begin_member_template_processing): Update them.
	(maybe_end_member_template_processing): Use them, rather than
	guessing how many levels to pop.
	
	* decl.c (make_typename_type): Tighten error-checking.

1999-04-20  Mark Mitchell  <[e-mail]>

	* cp-tree.h (build_binary_op): Remove unneeded parameter.
	* class.c (build_vrable_entry_ref): Adjust call to
	build_binary_op.
	* decl.c (expand_static_init): Likewise.
	(grokdeclarator): Likewise.
	(finish_function): Likewise.
	* decl2.c (delete_sanity): Likewise.
	(do_dtors): Likewise.
	(do_ctors): Likewise.
	* error.c (dump_type_suffix): Likewise.
	* expr.c (cplus_expand_expr): Likewise.
	* init.c (resolve_offset_ref): Likewise.
	(build_new): Likewise.
	(build_new_1): Likewise.
	(build_vec_delete_1): Likewise.
	(expand_vec_init_catch_clause): Likewise.
	(build_delete): Likewise.
	* pt.c (tsubst): Likewise.
	* rtti.c (synthesize_tinfo_fn): Likewise.
	* search.c (expand_upcast_fixups): Likewise.
	(expand_direct_vtbls_init): Likewise.
	* typeck.c (get_member_function_from_ptrfunc): Likewise.
	(build_binary_op_nodefault): Likewise.
	(point_int_sum): Likewise.
	(pointer_diff): Likewise.
	(build_unary_op): Likewise.
	(build_modify_expr): Likewise.
	(get_delta_difference): Likewise.
	(build_ptrmemfunc): Likewise.
	(expand_ptrmemfunc_cst): Likewise.
	
1999-04-20  Jason Merrill  <[e-mail]>

	* decl.c (grokfndecl): Always call cplus_decl_attributes.
	* decl2.c (grokfield): Pass attrlist to grokdeclarator.

1999-04-19  Mark Mitchell  <[e-mail]>

	* cp-tree.h (finish_static_data_member_decl): New function.
	* decl2.c (finish_static_data_member_decl): Split out from ...
	(grokfield): Here.
	* pt.c (instantiate_class_template): Use it here instead of 
	trying to fake it.
	(tsubst_decl): Don't set DECL_ASSEMBLER_NAME;
	finish_static_data_member_decl will do that.  Explicit set
	DECL_EXTERNAL to match non-template processing.
	
1999-04-18  Mark Mitchell  <[e-mail]>

	* cp-tree.h (finish_class_definition): Add parameter.
	* parse.y (structsp): Use it.  Don't call pop_scope here.
	* parse.c: Regenerated.
	* semantics.c (finish_class_definition): Pop it here.

1999-04-17  Mark Mitchell  <[e-mail]>

	* decl.c (xref_tag): Revise handling of nested template
	declarations.
	* pt.c (check_explicit_specialization): Tweak handling of friend
	templates in template classes.
	(tsubst_friend_class): Handle friend declarations for nested
	member template classes.
	
1999-04-16  Mark Mitchell  <[e-mail]>

	* class.c (finish_struct): Remove unused variable.
	(pushclass): Likewise.
	(invalidate_class_lookup_cache): Likewise.
	* cp-tree.def (TYPENAME_TYPE): Improve documentation.
	* decl.c (build_typename_type): Make sure TYPENAME_TYPE_FULLNAME
	doesn't get obliterated.
	(make_typename_type): Handle template classes correctly.

	* cp-tree.h (TREE_NONLOCAL_FLAG): Remove.
	(storetags): Declare.
	* class.c (finish_struct): Don't use TREE_NONLOCAL_FLAG.
	(pushclass): Likewise.  Use storetags to install tag declarations,
	not pushtag.
	(invalidate_class_lookup_cache): Don't use TREE_NONLOCAL_FLAG.
	* decl.c (storetags): Make it global.
	(push_class_binding): Set INHERITED_VALUE_BINDING_P for an
	implicit typename declaration.
	(pushtag): Tidy.  Don't use TREE_NONLOCAL_FLAG.
	* method.c (hack_identifier): Likewise.
	* search.c (lookup_member): Likewise.
	
	* decl.c (warn_about_implicit_typename_lookup): New function.
	(lookup_name_real): Use it.  Rework handling of implicit typename
	extension.

1999-04-15  Mark Mitchell  <[e-mail]>

	* cp-tree.h (lookup_nested_field): Remove.
	* class.c (push_nested_class): Handle UNION_TYPEs.
	(pop_nested_class): Likewise.
	* decl.c (lookup_name_real): Don't call lookup_nested_field.
	(start_decl): Use push_nested_class, not just pushclass.
	(cp_finish_decl): Use pop_nested_class, not just popclass.
	* search.c (lookup_nested_field): Remove.
	
	* cp-tree.h (lang_type): Add documentation.
	* decl2.c (handle_class_head): Create template declarations here,
	as appropriate.
	* parse.y (class_head): Return whether or not we entered a new
	scope, as well as the type named.
	(named_class_head): Likewise.
	(named_complex_class_head_sans_basetype): Likewise.
	(structsp): Adjust accordingly.  Pop scope when required.
	* parse.c: Regenerated.
	* pt.c (check_default_tmpl_args): Robustify.
	(redeclare_class_template): Likewise.
	(instantiate_class_template): An instantiation of an
	anonymous union is itself an anonymous union.
	* semantics.c (begin_class_definition): Don't create template
	declarations here.
	
1999-04-15  Jason Merrill  <[e-mail]>

	* parse.y (after_type_declarator_intern): New nonterminal.
	(after_type_declarator): Use it.
	(direct_after_type_declarator): Likewise.  Move above 
	nonnested_type to fix reduce/reduce conflict resolution.
	(declmods): Reducing from just 'attributes' has EMPTY precedence.
	* Makefile.in (CONFLICTS): Update.

	* decl.c (define_label): Downgrade error for jumping over a
	non-POD decl to pedwarn.

1999-04-14  Mark Mitchell  <[e-mail]>

	* cp-tree.h (popclass): Change declaration.
	(pop_nested_class): Likewise.
	(poplevel_class): Remove declaration.
	* call.c (convert_default_argument): Pass no arguments to
	popclass.
	* class.c (finish_struct_1): Likewise.
	(finish_struct): Likewise.
	(popclass): Remove argument.  Simplify code accordingly.
	(pop_nested_class): Likewise.
	* decl.c (poplevel_class): Declare it here, and make it static.
	(poplevel): Handle class scopes.
	(poplevel_class): Don't take an rgument.  Simplify.
	(pop_everything): Pass no arguments to pop_nested_class.
	(cp_finish_decl): Pass no arguments to popclass.
	(grokdeclarator): Pass no arguments to pop_nested_class.
	(finish_function): Likewise.
	* decl2.c (grokfield): Likewise.
	(pop_scope): Pass no arguments to popclass.
	* lex.c (do_pending_defargs): Pass no arguments to pop_nested_class.
	* pt.c (instantiate_class_template): Move call to pushclass, and
	document.  Pass no arguments to popclass.
	(regenerate_decl_from_template): Likewise.
	
1999-04-14  Jason Merrill  <[e-mail]>

	* typeck.c (build_unary_op): Handle taking the address of a unique
	bound non-static member function.

1999-04-13  Martin von Loewis  <[e-mail]>

	* lang-options.h (-Wdeprecated): New flag.
	* decl2.c (warn_deprecated): New flag.
	(lang_decode_option): Deprecated this-is-variable,
	external-templates, alt-external-templates.
	Support -Wdeprecated.
	* errfn.c (cp_deprecated): New function.

1999-04-13  Jason Merrill  <[e-mail]>

	* decl2.c (setup_initp): Compare DECL_ASSEMBLER_NAME instead
	of the decls themselves.

	* pt.c (tsubst_function_type): Copy attributes over.

	* tree.c (cp_valid_lang_attribute): New fn.  Handle init_priority
	and com_interface.
	* cp-tree.h: Add prototype.
	* decl.c (init_decl_processing): Set valid_lang_attribute.

1999-04-13  Mark Mitchell  <[e-mail]>

	* class.c (finish_struct_1): Look at the const-ness of the field's
	type, not the TREE_READONLY-ness of the declaration.
	* method.c (synthesize_method): Likewise.
	* pt.c (tsubst_decl): Call c_apply_type_quals_to_decl when
	creating new declarations.

1999-04-13  Mike Stump  <[e-mail]>

	* decl2.c (import_export_decl): Because vtables always reference
	virtual functions, even if they are inlined, don't allow
	-fno-implement-inlines to not emit them, instead, emit them with
	the vtable.
	* decl.c (start_function): Likewise.

1999-04-12  Jason Merrill  <[e-mail]>

	* cp-tree.h (struct lang_type): Add com_interface.
	(CLASSTYPE_COM_INTERFACE): New macro.
	* class.c (set_rtti_entry): COM interface classes have no RTTI
	entries in their vtables; adjust.
	(add_virtual_function, finish_base_struct, skip_rtti_stuff,
	modify_one_vtable, fixup_vtable_deltas1, override_one_vtable,
	finish_struct_1): Likewise.
	* decl2.c (mark_vtable_entries): Likewise.
	* rtti.c (build_headof, get_tinfo_fn_dynamic): Likewise.
	* search.c (get_abstract_virtuals_1, get_abstract_virtuals,
	expand_upcast_fixups): Likewise.
	* tree.c (debug_binfo): Likewise.

	* cp-tree.h (COMPARE_NO_ATTRIBUTES): New macro.
	* typeck.c (comptypes): If we get it, ignore attributes.
	* class.c (instantiate_type): Use BASELINK_P.  Change complain
	parameter to flags; 2 means ignore attributes.
	* call.c (build_op_delete_call): Pass it.

	* decl.c (xref_tag): Only complain once about using a typedef-name
	with 'struct'.  Downgrade to pedwarn.

	* decl.c (grokdeclarator): Allow [] syntax for zero-length array.

	* parse.y (absdcl_intern): New nonterminal.
	(absdcl, direct_abstract_declarator): Use it.

	* pt.c (lookup_template_class): Look through implict typename.

1999-04-11  Mark Mitchell  <[e-mail]>

	* friend.c (add_friend): Deal gracefully with error_mark_node.
	* method.c (build_overload_value): Handle pointers-to-members as
	template parameters.

	* decl.c (push_binding): Fix typo in comment.

1999-04-10  Mark Mitchell  <[e-mail]>

	* error.c (dump_type_real): If a typename is a template-id, put
	out the template arguments.
	(dump_expr): Handle TEMPLATE_ID_EXPR.
	* pt.c (lookup_template_class): Now that full arguments are
	available everywhere, remove code that tried to guess them.

1999-04-09  Mark Mitchell  <[e-mail]>

	* decl.c (make_typename_type): Complain if we don't find a type
	when trying to make a typename type for a non-template type.

1999-04-09  Jason Merrill  <[e-mail]>

	* decl.c (start_decl): Pass attributes to grokdeclarator.
	(grokdeclarator): Handle attributes on constructor-syntax
	initializers.

1999-04-08  Mark Mitchell  <[e-mail]>

	* error.c (dump_expr): Don't crash on INDIRECT_REFs whose operands
	don't have types.

	* search.c (template_self_reference_p): Tweak.

1999-04-07  Mark Mitchell  <[e-mail]>

	* init.c (build_offset_ref): Don't build yet another weird data
	structure to describe overloaded functions.

1999-04-06  Mark Mitchell  <[e-mail]>

	* cp-tree.h (BASELINK_P): New macro.
	(SET_BASELINK_P): Likewise.
	* init.c (build_member_call): Remove needless assignment in if
	statement.
	* search.c (lookup_field_r): Fix handling when we are looking