changelog

gcc-2.95.3 Linux下最常用的C编译器

	not squangling.

1999-06-04  Jason Merrill  <[e-mail]>

	* semantics.c (finish_if_stmt_cond): Copy cond to permanent_obstack.
	(finish_while_stmt_cond, finish_do_stmt, finish_for_cond): Likewise.

1999-05-30  Mark Mitchell  <[e-mail]>

	* lex.c (make_lang_type): Create TYPE_BINFO for
	TEMPLATE_TYPE_PARMs just like for non-template types.

1999-05-28  Nathan Sidwell  <[e-mail]>

	* decl.c (complete_array_type): Allocate off same obstack. Fix
	DO_DEFAULT comment to match reality.

1999-05-22  Mark Mitchell  <[e-mail]>

	* tree.c (mapcar): Handle NON_LVALUE_EXPR.

1999-05-21  Mark Mitchell  <[e-mail]>

	* typeck.c (build_ptrmemfunc): Handle PTRMEM_CSTs carefully to
	reveal optimization opportunities.

1999-05-20  Mark Mitchell  <[e-mail]>

	* decl.c (grokdeclarator): Don't treat [] as indicating a
	zero-sized array in a typedef.

	* call.c (build_object_call): Don't look at DECL_NAME for a type.
	(pt.c): Or CP_TYPE_QUALS for an ERROR_MARK.
	(typeck.c): Or TYPE_MAIN_VARIANT for a type.

1999-05-20  Jason Merrill  <[e-mail]>

	* tree.c (lvalue_p_1): A NOP_EXPR can be an lvalue.
	(build_cplus_new): Make sure that what we return is of the right type.

1999-05-20  Mark Mitchell  <[e-mail]>

	* cp-tree.h (make_ptrmem_cst): New function.
	* expr.c (cplus_expand_constant): Split out from ...
	(cplus_expand_expr): Here.  Use cplus_expand_constant.
	(init_cplus_expand): Set lang_expand_constant.
	* pt.c (convert_nontype_argument): Use make_ptrmem_cst.
	* tree.c (make_ptrmem_cst): Define.
	* typeck.c (unary_complex_lvalue): Use make_ptrmem_cst.
	* typeck2.c (initializer_constant_valid_p): Use make_ptrmem_cst.

1999-05-19  Mark Mitchell  <[e-mail]>

	* decl2.c (start_static_storage_duration_function): Fix comment.
	(finish_file): Create static storage duration functions lazily.

Wed May 19 02:50:53 1999  Arvind Sankar <[e-mail]>

	* gxxint.texi: Fix typo.

1999-05-18  Jason Merrill  <[e-mail]>

	* call.c (joust): Compare the types of the conv ops, not the
	target types of the conversions.

Tue May 18 00:21:34 1999  Zack Weinberg  <[e-mail]>

	* lang-specs.h: Define __GNUC__ and __GNUC_MINOR__ only if -no-gcc
	was not given.

1999-05-17  Mark Mitchell  <[e-mail]>

	* cp-tree.def (TEMPLATE_ID_EXPR): Update documentation.
	* decl.c (grokfndecl): Don't allow inline declarations of friend
	template specializations, or friend template specializations with
	default arguments.
	* pt.c (tsubst): Handle substitution into array types that does
	not yield a fixed upper bound, even when not processing a
	template.
	(tsubst_copy): Deal with the fact that the second operand to a
	TEMPLATE_ID_EXPR may be NULL_TREE, a TREE_LIST, or a TREE_VEC.
	* search.c (marked_pushdecls_p): Don't descend into
	TEMPLATE_TYPE_PARMs and the like.
	(unmarked_pushdecls_p): Likewise.
	
	* call.c (build_over_call): Don't throw away
	initializations/copies of empty classes; use MODIFY_EXPR and
	INIT_EXPR as for non-empty classes.
	* class.c (finish_struct_1): Put the padding byte for an empty
	class on the TYPE_NONCOPIED_PARTS list for the class.

1999-05-16  Mark Mitchell  <[e-mail]>

	* decl2.c (build_expr_from_tree): Handle COMPONENT_REFs that
	indicate a reference to a field that is a qualified name.

1999-05-16  Jason Merrill  <[e-mail]>

	* decl2.c (finish_objects): Don't use .?tors.* if we don't have
	ASM_OUTPUT_CONSTRUCTOR.

	* friend.c (do_friend): Add attrlist arg.  Remove support for
	getting a non-decl as 'decl'.
	* decl.c (grokfndecl): Remove attrlist arg.  Don't set attrs or
	rtl.
	(grokdeclarator): Adjust.
	* cp-tree.h: Adjust.

1999-05-16  Mark Mitchell  <[e-mail]>

	* cp-tree.h (permanent_p): New function.
	* init.c (build_new_1): Use mapcar, not copy_node, to copy a
	possibly complex tree node.
	* tree.c (mapcar): Adjust comments, and follow coding standards in
	conditional.
	(permanent_p): New function.

1999-05-13  Per Bothner  <[e-mail]>

	* class.c (push_lang_context):  Turn off DECL_IGNORED_P for
	primitive Java types, if we actually see `extern "Java"'.

1999-05-10 18:21 -0400  Zack Weinberg  <[e-mail]>

	* lang-specs.h: Pass -$ to the preprocessor.

1999-05-10  Jason Merrill  <[e-mail]>

	* init.c (build_offset_ref): Wrap baselinks in OFFSET_REF, too.
	Don't bother wrapping an OFFSET_TYPE around unknown_type_node.
	(resolve_offset_ref): Don't handle a raw baselink.
	* cvt.c (build_expr_type_conversion): Likewise.
	* typeck.c (decay_conversion, build_c_cast, convert_for_assignment,
	convert_for_initialization): Likewise.
	* class.c (instantiate_type): Handle seeing a baselink under an
	OFFSET_REF.
	* error.c (dump_expr): Likewise.	
	* pt.c (for_each_template_parm): Likewise.
	(resolve_overloaded_unification): Likewise.
	* tree.c (is_overloaded_fn, really_overloaded_fn): Likewise.
	* typeck.c (expr_sizeof): Also complain about other permutations
	of overloaded functions.

1999-05-07  Jason Merrill  <[e-mail]>

	* init.c (resolve_offset_ref): Don't return a raw method.
	Use BASELINK_P.
	* typeck.c (decay_conversion): Don't handle a raw method.
	Resolve all OFFSET_REFs.
	(get_member_function_from_ptrfunc): 0 is a valid vtable index.
	(build_binary_op_nodefault): Handle resolving overloaded fns.  Use
	same_type_p for pmf bits.  Don't use build_binary_op to compare
	raw pointers to methods.
	(convert_for_assignment): Check for OFFSET_REF, not OFFSET_TYPE,
	to decide when to call resolve_offset_ref.
	(build_c_cast, convert_for_initialization): Likewise.
	* cvt.c (build_expr_type_conversion): Likewise.

1999-05-06  Nathan Sidwell  <[e-mail]>

	* call.c (build_new_method_call): Use TYPE_MAIN_VARIANT of class.

1999-05-05  Mark Mitchell  <[e-mail]>

	* decl2.c (start_objects): Don't let static constructors and
	destructors get inlined.

	* parse.y (nested_name_specifier): Make sure ordinary types are
	complete, just like template types.
	* parse.c: Regenerated.

	* pt.c (check_explicit_specialization): Improve error messages.

1999-05-04  Martin von L鰓is  <[e-mail]>

	* typeck.c (string_conv_p): Use same_type_p to check whether we
	try to convert between char and wchar_t.

1999-05-03  Mark Mitchell  <[e-mail]>

	* search.c (lookup_field_r): Set the TREE_TYPE of an ambiguous
	lookup to error_mark_node here.
	(lookup_member): Revise documentation.  Add comments.  Don't set
	the TREE_TYPE to error_mark_node here, and don't build up an extra
	TREE_LIST for ambiguous lookups.
	(setup_class_bindings): Adjust accordingly.
	(push_class_decls): Revise out-of-date comments.
	
	* typeck.c (build_const_cast): Tighten checks for legality.

1999-05-02  Martin von L鰓is  <[e-mail]>

	* init.c (build_member_call): Lookup names coming from
	namespace-scoped LOOKUP_EXPR.

1999-05-03  Jim Blandy  <[e-mail]>

	* gxxint.texi: Add documentation for 'I'.

1999-05-02  Martin von L鰓is  <[e-mail]>

	* tinfo.cc (operator==): Qualify type_info with std::.

1999-05-02  Mark Mitchell  <[e-mail]>

	* cp-tree.h (lang_decl_flags): Remove comdat.  Updated dummy.
	(DECL_COMDAT): Remove definition.

1999-05-01  Mark Mitchell  <[e-mail]>

	* decl.c (wrapup_globals_for_namespace): Fix thinko in previous
	change.

1999-04-30  Mark Mitchell  <[e-mail]>

	* class.c (build_vtable): Use build_lang_decl when building
	vtables, not just build_decl.
	(prepare_fresh_vtable): Likewise.
	* decl.c (wrapup_globals_for_namespace): Mark vtables as
	DECL_EXTERNAL when calling wrapup_global_declarations.
	* decl2.c (priority_info_s): Add initializations_p and
	destructions_p members.
	(finish_vtable_vardecl): Use TREE_SYMBOL_REFERENCED, not TREE_USED,
	when deciding what vtables to write out.
	(ssdf_decls): New variable.
	(ssdf_decls_used): Likewise.
	(start_static_storage_duration_function): Deal with being called
	multiple times.  Avoid inlining this function.
	(generate_inits_for_priority): Deal with reuse of priority map.
	(get_priority_info): Clear initializations_p and destructions_p.
	(do_static_initialization): Tweak comment.
	(do_static_destruction): Likewise.  Fix condition on sentries for
	destruction. 
	(generate_ctor_or_dtor_function): Call all of the static storage
	duration functions.
	(generate_ctor_or_dtor_function_for_priority): Check
	initializations_p and destructions_p to see what priorities need
	initialization functions.
	(finish_file): Rework to generate multiple static storage duration
	functions, rather than just one.
	
	* typeck.c (build_const_cast): Tweak last change to handle
	templates correctly.

	* typeck.c (build_const_cast): Disallow use of const_cast to
	anything but a pointer or reference type.

1999-04-30  Nathan Sidwell  <[e-mail]>

	* decl.c (cp_finish_decl): Don't permit arrays of abstract or
	signature type.

1999-04-29  Mark Mitchell  <[e-mail]>

	* decl2.c (do_static_destruction): Remove obsolete FIXME comment.
	(finish_file): Indent comments properly.

1999-04-29  Richard Henderson  <[e-mail]>

	* decl2.c (do_static_initialization): Call do_pending_stack_adjust.
	(do_static_destruction): Likewise.

1999-04-29  Nathan Sidwell  <[e-mail]>

	* cp-tree.h (TYPE_NOTHROW_P): New macro.
	* decl2.c (delete_sanity): Warn on deleting void *.
	* init.c (build_new_1): Use TYPE_NOTHROW_P.
	* typeck.c (c_expand_return): cp_pedwarn on returning NULL from
	throwing operator new.

1999-04-28  Nathan Sidwell  <[e-mail]>

	* cp-tree.h (build_component_addr): Remove prototype.
	* typeck.c (build_component_addr): Make static. Remove MSG
	argument.
	(build_component_addr): Remove MSG parameter, clean up
	comment.
	(build_x_function_call): Use cp_error.
	(build_unary_op): Adjust call of build_component_addr.
	
1999-04-28  Mark Mitchell  <[e-mail]>

	* pt.c (tsubst_friend_class): Check for NULL.

Wed Apr 28 11:42:22 1999  Andreas Schwab  <[e-mail]>

	* search.c (binfo_for_vtable): Initialize bfvi.var.

1999-04-27  Nathan Sidwell  <[e-mail]>

	* rtti.c (build_x_typeid): Check rtti is enabled.

1999-04-26  Mark Mitchell  <[e-mail]>

	* search.c (is_subobject_of_p): Make sure we're looking at the
	right baseclasses.

1999-04-26  Marc Espie  <[e-mail]>

	* Make-lang.in (cplib2.ready): Don't depend on phony targets.

1999-04-23  Mark Mitchell  <[e-mail]>

	* decl2.c (finish_file): Tweak handling of extern inlines so that
	they are not unnecessarily put out.

	* search.c (is_subobject_of_p): Handle TEMPLATE_TYPE_PARMs and
	such as base classes.

1999-04-22  Brendan Kehoe  <[e-mail]>

	* tree.c (build_exception_variant): Fix typo: use the chain of U,
	not trying V, while cycling through U.

1999-04-22  Mark Mitchell  <[e-mail]>

	* cp-tree.h (lang_decl_flags): Remove returns_first_arg and
	preserves_first_arg.  Enlarge dummy accordingly.
	(DECL_TINFO_FN_P): New macro.
	(SET_DECL_TINFO_FN_P): Likeiwse.
	(DECL_RETURNS_FIRST_ARG): Remove.
	(DECL_PRESERVES_THIS): Likewise.
	(DECL_INIT_PRIORITY): New macro.
	(finish_struct_1): Change prototype.
	(cat_namespace_levels): Remove prototype.
	(vtable_decl_p): New prototype.
	(vtype_decl_p): Likewise.
	(sigtable_decl_p): Likewise.
	(walk_globals_pred): New typedef.
	(walk_globals_fn): Likewise.
	(walk_globals): New prototype.
	(walk_namespaces_fn): New typedef.
	(walk_namespaces): New prototype.
	(wrapup_globals_for_namespace): Likewise.
	(walk_vtables): Remove prototype.
	(walk_sigtables): Likewise.
	(instantiate_pending_templates): New prototype.
	* class.c (finish_struct_1): Don't return a value.
	* decl.h (pending_statics): Remove declaration.
	* decl.c (walk_namespaces_r): New function.
	(walk_globals_r): Likewise.
	(vtable_decl_p): Likewise.
	(vtype_decl_p): Likewise.
	(sigtable_decl_p): Likewise.
	(walk_namespaces): Likewise.
	(walk_globals_data): New type.
	(walk_globals): New function.
	(wrapup_globals_for_namespace): Likewise.
	(expand_static_init): Remove assertion.  Remove redundancy in
	conditional.  Don't put static data members in static_aggregates
	Tidy.
	(finish_function): Remove redundancy in conditional.  Don't set
	DECL_RETURNS_FIRST_ARG.