changelog.1

gcc-2.95.3 Linux下最常用的C编译器

Thu Jul 20 01:43:10 1995  Mike Stump  <[e-mail]>

	* init.c (expand_aggr_init): Assume LOOKUP_ONLYCONVERTING if init
	is not a parameter list (TREE_LIST).
	(expand_default_init): If LOOKUP_ONLYCONVERTING is set, then set
	LOOKUP_NO_CONVERSION so that we don't allow two-level conversions,
	but don't set it otherwise.

Wed Jul 19 20:32:01 1995  Mike Stump  <[e-mail]>

	* init.c (expand_default_init): Don't allow two-level conversions
	during construction.

Wed Jul 19 18:06:37 1995  Mike Stump  <[e-mail]>

	* gc.c (build_headof): The type of dyncasting to a pointer to cv
	void, should be pointer to cv void.

Wed Jul 19 17:25:43 1995  Mike Stump  <[e-mail]>

	* gc.c (build_dynamic_cast): Allow casting in const.

Wed Jul 19 16:34:27 1995  Mike Stump  <[e-mail]>

	* typeck.c (build_const_cast): If we are passed error_mark_node,
	return it.

Wed Jul 19 15:24:48 1995  Brendan Kehoe  <[e-mail]>

	* class.c (push_nested_class): Make sure TYPE is non-nil.

	* cvt.c (type_promotes_to): Watch for error_mark_node on the
	incoming TYPE.

Wed Jul 19 13:23:12 1995  Gerald Baumgartner  <[e-mail]>

	* cp-tree.h (SIGTABLE_VT_OFF_NAME): Renamed from SIGTABLE_OFFSET_NAME.
	(SIGTABLE_VB_OFF_NAME): New macro.
	(vt_off_identifier): Renamed from offset_identifier.
	(vb_off_identifier): Added extern declaration.

	* decl.c (vt_off_identifier): Renamed from offset identifier.
	(vb_off_identifier): New variable to hold the identifier for the
	sigtable field vb_off.
	(init_decl_processing): Initialize vb_off_identifier.
	Renamed vt_off_identifier from offset_identifier.
	* sig.c (build_signature_method_call): Renamed offset_identifier and
	local variable offset to vt_off_identifer and vt_off, respecitively.
	* sig.c (build_signature_table_constructor): Renamed offset to vt_off.

	* decl.c (init_decl_processing): Add vb_off field to
	sigtable_entry_type.  Reorder fields so that pfn gets properly
	aligned at a 64 bit boundary on the Alpha.
	* sig.c (build_signature_table_constructor): Build the constructor
	according to the new layout.  Set the vb_off field to -1 for now.

	* decl.c (init_decl_processing): Align sigtable_entry_type on word
	boundaries instead of double word boundaries to save space.

Tue Jul 18 16:58:37 1995  Mike Stump  <[e-mail]>

	* cvt.c (cp_convert): Always call build_cplus_new for a ctor.

Tue Jul 18 14:24:53 1995  Brendan Kehoe  <[e-mail]>

	* parse.y (opt.component_decl_list): Only forbid private/protected
	in anonymous unions.  We need to make this know when the type is
	defined for an object, to not give the error.

Mon Jul 17 14:22:44 1995  Brendan Kehoe  <[e-mail]>

	* parse.y (opt.component_decl_list): Don't allow access control
	as private or protected for union members.

Sun Jul 16 14:01:00 1995  Jim Wilson  <[e-mail]>

	* lex.c (check_newline): For 'p' case, move goto skipline line to
	before end brace for 'pragma'.

Fri Jul  7 13:55:58 1995  Mike Stump  <[e-mail]>

	* g++.1: Tiny updates.

Fri Jul  7 13:05:20 1995  Mike Stump  <[e-mail]>

	* decl.c (cp_finish_decl): Only destruct local static variables if
	they are constructed, and only construct the first time control
	passes completely through its declaration (if not initialized with a
	constant-expression).
	(expand_static_init): Likewise.

Wed Jul  5 14:05:04 1995  Brendan Kehoe  <[e-mail]>

	* typeck.c (comptypes, case OFFSET_REF): If either offset basetype
	is a TEMPLATE_TYPE_PARM, give a match.

Fri Jun 30 15:42:57 1995  Mike Stump  <[e-mail]>

	* method.c (build_overload_value): Handle encoding of null pointer
	constants (or any pointer with a constant numeric value) for
	templates.

Fri Jun 30 13:45:51 1995  Brendan Kehoe  <[e-mail]>

	* call.c (convert_harshness): Add QUAL_CODE when we're faced with
	const vs non-const for void conversions.

Fri Jun 30 10:19:52 1995  Mike Stump  <[e-mail]>

	* except.c (expand_start_all_catch): Fix problem with finding an
	outer nested try block when there is no code to separate it from an
	inner try block.

Fri Jun 30 02:22:26 1995  Mike Stump  <[e-mail]>

	* search.c (dfs_pushdecls): Consume 2 or 3 orders of magnitude less
	memory please when virtual bases are used.

Thu Jun 29 19:03:47 1995  Mike Stump  <[e-mail]>

	* class.c (build_vbase_path): Avoid testing things that cannot be
	null to see if they are null.
	* cvt.c (convert_pointer_to_vbase): Remove code that doesn't work.
	* decl.c (finish_function): Pass a type into the new
	convert_pointer_to_vbase instead of a binfo.
	* search.c (convert_pointer_to_vbase): Rewritten to use get_vbase
	and convert_pointer_to_real.
	(expand_indirect_vtbls_init): Use convert_pointer_to_vbase instead
	of the more cryptic call to get_vbase.

Thu Jun 29 09:35:05 1995  Mike Stump  <[e-mail]>

	* decl.c (BOOL_TYPE_SIZE): Fix broken SLOW_BYTE_ACCESS check.

Thu Jun 29 03:43:55 1995  Jason Merrill  <[e-mail]>

	* pt.c (instantiate_template): Don't strip 'this' twice.

	* pt.c (coerce_template_parms): Allow null pointer constants.

	* decl.c (revert_static_member_fn): But only if DECL_ARGUMENTS is
	set.

Wed Jun 28 18:39:03 1995  Jason Merrill  <[e-mail]>

	* decl.c (revert_static_member_fn): Also remove 'this' from
	DECL_ARGUMENTS.
	* decl2.c (check_classfn): Don't revert this function until we get a
	match.

Wed Jun 28 14:07:27 1995  Brendan Kehoe  <[e-mail]>

	* parse.y (component_decl): Clear PREFIX_ATTRIBUTES here.

Wed Jun 28 11:05:13 1995  Mike Stump  <[e-mail]>

	* decl2.c (finish_file): Handle global vector news.
	* init.c (build_new): Encode vector news so that later we will know
	how many elements there are.

Mon Jun 26 13:38:06 1995  Jason Merrill  <[e-mail]>

	* expr.c (cplus_expand_expr): Don't mess with temp slots.

	* decl2.c (warn_if_unknown_interface): Don't crash if tinst_for_decl
	returns null.

	* decl2.c (check_classfn): Use revert_static_member_fn.
	* decl.c (revert_static_member_fn): Diagnose static member functions
	declared const or volatile.

	* decl2.c (grokfield): Check for missing default args here, too.
	(check_default_args): Function to do the checking.
	* decl.c (pushdecl): Use it.

	* decl.c (pushdecl): Don't warn about shadowing a member of `this'
	if there is no `this'.

Sun Jun 25 11:34:25 1995  Jason Merrill  <[e-mail]>

	* call.c (build_method_call): Downgrade 'called before definition'
	to a warning, as it ought to go away after Monterey.

Sat Jun 24 14:18:42 1995  Jason Merrill  <[e-mail]>

	* pt.c (coerce_template_parms): Don't do extra checking on pointer
	to member arguments.

	* class.c (finish_struct): const and reference members don't prevent
	a class from being an aggregate.

	* class.c (finish_struct): Signatures are always aggregates.

Fri Jun 23 17:20:29 1995  Jason Merrill  <[e-mail]>

	* decl2.c (check_classfn): Improve error message.

	* pt.c (tsubst): Handle PROMOTE_PROTOTYPES.

Thu Jun 22 01:50:42 1995  Jason Merrill  <[e-mail]>

	* typeck.c (comptypes): Don't ignore method quals.

	* class.c (finish_struct): Non-abstract virtuals are always USED.

	* decl.c (build_ptrmemfunc_type): The underlying union type isn't
	IS_AGGR_TYPE, either.
	* class.c (finish_struct): Use CLASSTYPE_NON_AGGREGATE instead.
	* cp-tree.h: Likewise.

	* cp-tree.h (lang_type): Add aggregate.
	(CLASSTYPE_AGGREGATE): New macro.
	(TYPE_NON_AGGREGATE_CLASS): Likewise.
	* class.c (finish_struct): Determine whether a class is an
	aggregate.
	* decl.c (cp_finish_decl): Check TYPE_NON_AGGREGATE_CLASS instead of
	TYPE_NEEDS_CONSTRUCTING.
	* typeck2.c (digest_init): Check TYPE_NON_AGGREGATE_CLASS for
	subobjects, too.

	* pt.c (tsubst, PARM_TYPE): Propagate DECL_ARTIFICIAL.

	* decl.c (start_function): For pre-parsed functions, layout all of
	the parm decls again.
	(grokvardecl): TREE_PUBLIC depends on DECL_THIS_EXTERN, not
	DECL_EXTERNAL.

	* pt.c (coerce_template_parms): Improve checking for invalid
	template parms.

Wed Jun 21 12:01:16 1995  Brendan Kehoe  <[e-mail]>

	* decl.c (grokdeclarator): Forbid declaration of a static member
	with the same name as its enclosing class.

Mon Jun 19 10:28:14 1995  Jason Merrill  <[e-mail]>

	* decl.c (finish_function): Clear current_class_decl.

	* typeck.c (build_conditional_expr): Use convert (boolean_type_node
	instead of truthvalue_conversion.

	* class.c (finish_struct): A data member with the same name as the
	class doesn't suppress constructors.

Fri Jun 16 18:11:39 1995  Gerald Baumgartner  <[e-mail]>

	* decl.c (start_function): If current_class_decl is a signature
	pointer, don't dereference it but set C_C_D to current_class_decl.

Fri Jun 16 17:06:28 1995  Jason Merrill  <[e-mail]>

	* decl.c (duplicate_decls): Complain about virtual functions
	redeclared to be inline.

Fri Jun 16 13:20:38 1995  Mike Stump  <[e-mail]>

	* decl.c (get_unique_name): New routine to name unnamed namespaces.
	(push_namespace): Use get_unique_name for naming unnamed namespaces.

Thu Jun 15 15:00:41 1995  Jason Merrill  <[e-mail]>

	* parse.y: Call cplus_decl_attributes with prefix_attributes where
	appropriate.

Wed Jun 14 19:24:49 1995  Mike Stump  <[e-mail]>

	* search.c (get_vbase): New routine to switch hierarchies from the
	CLASSTYPE_VBASECLASSES to the normal one.
	(expand_indirect_vtbls_init): Use get_vbase to figure out how we
	want to convert to a vbase pointer.

Mon Jun 12 17:50:30 1995  Jason Merrill  <[e-mail]>

	* pt.c (instantiate_class_template): Add the new instantiation to
	template_classes.
	(do_pending_expansions): Call instantiate_member_templates on all of
	the classes in template_classes.

Mon Jun 12 12:36:59 1995  Mike Stump  <[e-mail]>

	* decl.c (complete_array_type): Fill in the TYPE_DOMAIN of our
	TYPE_MAIN_VARIANT if it is not filled in.
	* init.c (build_delete): If the TYPE_DOMAIN is not set, give an
	error instead of core dumping.

Mon Jun 12 10:41:40 1995  Jason Merrill  <[e-mail]>

	* call.c (can_convert): Also check for distance > 0.
	(can_convert_arg): Likewise.
	(user_harshness): Likewise.

Fri Jun  9 19:17:21 1995  Jason Merrill  <[e-mail]>

	* g++.c (MATH_LIBRARY): Provide default.
	(main): Always link with the math library if we link with libstdc++.

	* decl.c (start_function): Complain about redefinition of a function
	even when the pending_inline version is compiled after the other
	version.

Thu Jun  8 15:44:38 1995  Jason Merrill  <[e-mail]>

	* gc.c (build_dynamic_cast): Build up a reference to a parameter of
	aggregate type.

Wed Jun  7 15:31:57 1995  Brendan Kehoe  <[e-mail]>

	* init.c (build_vec_delete): Resolve an offset ref before we try to
	use it.

Wed Jun  7 14:19:32 1995  Jason Merrill  <[e-mail]>

	* typeck.c (build_modify_expr): If the class lacks a constructor or
	assignment operator, return error_mark_node.
	(common_type): Use build_cplus_array_type.

Tue Jun  6 09:41:27 1995  Mike Stump  <[e-mail]>

	* class.c (dont_allow_type_definitions): New variable set when types
	cannot be defined.
	(finish_struct): Use it.
	* cp-tree.h (dont_allow_type_definitions): Define it.
	* parse.y (primary, handler_seq): Set it.

Mon Jun  5 18:49:38 1995  Mike Stump  <[e-mail]>

	* method.c (build_opfncall): Use DECL_CHAIN, not TREE_CHAIN for
	results from lookup_fnfields.  Always give warning/error on bad
	code.

Mon Jun  5 11:39:37 1995  Brendan Kehoe  <[e-mail]>

	* init.c (member_init_ok_or_else): Don't allow initialization of
	an ancestor's member from within a constructor.

Mon Jun  5 11:20:34 1995  Gerald Baumgartner  <[e-mail]>

	* sig.c (build_signature_table_constructor): Use DECL_CONTEXT
	instead of DECL_CLASS_CONTEXT for calculating the vfield offset so
	abstract virtual functions are handled correctly.

	* sig.c (build_signature_table_constructor): Store the correct
	delta in signature table entries.  It does not yet work for
	classes with virtual base classes as implementations of signatures.
	(build_signature_method_call): Add the delta to the object_ptr
	before generating the function call.

	* call.c (build_method_call): Make instance_ptr the signature
	pointer itself instead of dereferencing the optr.
	* sig.c (build_signature_method_call): Dereference the optr for the
	direct and virtual calls.

	* sig.c (build_signature_table_constructor): Make the tag for