1 /* Separate lexical analyzer for GNU C++.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
4 Hacked by Michael Tiemann (tiemann@cygnus.com)
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
24 /* This file is the lexical analyzer for GNU C++. */
28 #include "coretypes.h"
41 static int interface_strcmp (const char *);
42 static void init_cp_pragma (void);
44 static tree parse_strconst_pragma (const char *, int);
45 static void handle_pragma_vtable (cpp_reader *);
46 static void handle_pragma_unit (cpp_reader *);
47 static void handle_pragma_interface (cpp_reader *);
48 static void handle_pragma_implementation (cpp_reader *);
49 static void handle_pragma_java_exceptions (cpp_reader *);
51 static void init_operators (void);
52 static void copy_lang_type (tree);
54 /* A constraint that can be tested at compile time. */
55 #define CONSTRAINT(name, expr) extern int constraint_##name [(expr) ? 1 : -1]
57 /* Functions and data structures for #pragma interface.
59 `#pragma implementation' means that the main file being compiled
60 is considered to implement (provide) the classes that appear in
61 its main body. I.e., if this is file "foo.cc", and class `bar'
62 is defined in "foo.cc", then we say that "foo.cc implements bar".
64 All main input files "implement" themselves automagically.
66 `#pragma interface' means that unless this file (of the form "foo.h"
67 is not presently being included by file "foo.cc", the
68 CLASSTYPE_INTERFACE_ONLY bit gets set. The effect is that none
69 of the vtables nor any of the inline functions defined in foo.h
72 There are cases when we want to link files such as "defs.h" and
73 "main.cc". In this case, we give "defs.h" a `#pragma interface',
74 and "main.cc" has `#pragma implementation "defs.h"'. */
79 struct impl_files *next;
82 static struct impl_files *impl_file_chain;
85 int interface_only; /* whether or not current file is only for
86 interface definitions. */
87 int interface_unknown; /* whether or not we know this class
88 to behave according to #pragma interface. */
97 /* A mapping from tree codes to operator name information. */
98 operator_name_info_t operator_name_info[(int) LAST_CPLUS_TREE_CODE];
99 /* Similar, but for assignment operators. */
100 operator_name_info_t assignment_operator_name_info[(int) LAST_CPLUS_TREE_CODE];
102 /* Initialize data structures that keep track of operator names. */
104 #define DEF_OPERATOR(NAME, C, M, AR, AP) \
105 CONSTRAINT (C, sizeof "operator " + sizeof NAME <= 256);
106 #include "operators.def"
110 init_operators (void)
114 struct operator_name_info_t *oni;
116 #define DEF_OPERATOR(NAME, CODE, MANGLING, ARITY, ASSN_P) \
117 sprintf (buffer, ISALPHA (NAME[0]) ? "operator %s" : "operator%s", NAME); \
118 identifier = get_identifier (buffer); \
119 IDENTIFIER_OPNAME_P (identifier) = 1; \
122 ? &assignment_operator_name_info[(int) CODE] \
123 : &operator_name_info[(int) CODE]); \
124 oni->identifier = identifier; \
126 oni->mangled_name = MANGLING; \
129 #include "operators.def"
132 operator_name_info[(int) ERROR_MARK].identifier
133 = get_identifier ("<invalid operator>");
135 /* Handle some special cases. These operators are not defined in
136 the language, but can be produced internally. We may need them
137 for error-reporting. (Eventually, we should ensure that this
138 does not happen. Error messages involving these operators will
139 be confusing to users.) */
141 operator_name_info [(int) INIT_EXPR].name
142 = operator_name_info [(int) MODIFY_EXPR].name;
143 operator_name_info [(int) EXACT_DIV_EXPR].name = "(ceiling /)";
144 operator_name_info [(int) CEIL_DIV_EXPR].name = "(ceiling /)";
145 operator_name_info [(int) FLOOR_DIV_EXPR].name = "(floor /)";
146 operator_name_info [(int) ROUND_DIV_EXPR].name = "(round /)";
147 operator_name_info [(int) CEIL_MOD_EXPR].name = "(ceiling %)";
148 operator_name_info [(int) FLOOR_MOD_EXPR].name = "(floor %)";
149 operator_name_info [(int) ROUND_MOD_EXPR].name = "(round %)";
150 operator_name_info [(int) ABS_EXPR].name = "abs";
151 operator_name_info [(int) TRUTH_AND_EXPR].name = "strict &&";
152 operator_name_info [(int) TRUTH_OR_EXPR].name = "strict ||";
153 operator_name_info [(int) RANGE_EXPR].name = "...";
154 operator_name_info [(int) CONVERT_EXPR].name = "+";
156 assignment_operator_name_info [(int) EXACT_DIV_EXPR].name
158 assignment_operator_name_info [(int) CEIL_DIV_EXPR].name
160 assignment_operator_name_info [(int) FLOOR_DIV_EXPR].name
162 assignment_operator_name_info [(int) ROUND_DIV_EXPR].name
164 assignment_operator_name_info [(int) CEIL_MOD_EXPR].name
166 assignment_operator_name_info [(int) FLOOR_MOD_EXPR].name
168 assignment_operator_name_info [(int) ROUND_MOD_EXPR].name
172 /* The reserved keyword table. */
175 const char *const word;
176 ENUM_BITFIELD(rid) const rid : 16;
177 const unsigned int disable : 16;
180 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
182 #define D_EXT 0x01 /* GCC extension */
183 #define D_ASM 0x02 /* in C99, but has a switch to turn it off */
185 CONSTRAINT(ridbits_fit, RID_LAST_MODIFIER < sizeof(unsigned long) * CHAR_BIT);
187 static const struct resword reswords[] =
189 { "_Complex", RID_COMPLEX, 0 },
190 { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
191 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
192 { "__alignof", RID_ALIGNOF, 0 },
193 { "__alignof__", RID_ALIGNOF, 0 },
194 { "__asm", RID_ASM, 0 },
195 { "__asm__", RID_ASM, 0 },
196 { "__attribute", RID_ATTRIBUTE, 0 },
197 { "__attribute__", RID_ATTRIBUTE, 0 },
198 { "__builtin_offsetof", RID_OFFSETOF, 0 },
199 { "__builtin_va_arg", RID_VA_ARG, 0 },
200 { "__complex", RID_COMPLEX, 0 },
201 { "__complex__", RID_COMPLEX, 0 },
202 { "__const", RID_CONST, 0 },
203 { "__const__", RID_CONST, 0 },
204 { "__extension__", RID_EXTENSION, 0 },
205 { "__func__", RID_C99_FUNCTION_NAME, 0 },
206 { "__imag", RID_IMAGPART, 0 },
207 { "__imag__", RID_IMAGPART, 0 },
208 { "__inline", RID_INLINE, 0 },
209 { "__inline__", RID_INLINE, 0 },
210 { "__label__", RID_LABEL, 0 },
211 { "__null", RID_NULL, 0 },
212 { "__real", RID_REALPART, 0 },
213 { "__real__", RID_REALPART, 0 },
214 { "__restrict", RID_RESTRICT, 0 },
215 { "__restrict__", RID_RESTRICT, 0 },
216 { "__signed", RID_SIGNED, 0 },
217 { "__signed__", RID_SIGNED, 0 },
218 { "__thread", RID_THREAD, 0 },
219 { "__typeof", RID_TYPEOF, 0 },
220 { "__typeof__", RID_TYPEOF, 0 },
221 { "__volatile", RID_VOLATILE, 0 },
222 { "__volatile__", RID_VOLATILE, 0 },
223 { "asm", RID_ASM, D_ASM },
224 { "auto", RID_AUTO, 0 },
225 { "bool", RID_BOOL, 0 },
226 { "break", RID_BREAK, 0 },
227 { "case", RID_CASE, 0 },
228 { "catch", RID_CATCH, 0 },
229 { "char", RID_CHAR, 0 },
230 { "class", RID_CLASS, 0 },
231 { "const", RID_CONST, 0 },
232 { "const_cast", RID_CONSTCAST, 0 },
233 { "continue", RID_CONTINUE, 0 },
234 { "default", RID_DEFAULT, 0 },
235 { "delete", RID_DELETE, 0 },
237 { "double", RID_DOUBLE, 0 },
238 { "dynamic_cast", RID_DYNCAST, 0 },
239 { "else", RID_ELSE, 0 },
240 { "enum", RID_ENUM, 0 },
241 { "explicit", RID_EXPLICIT, 0 },
242 { "export", RID_EXPORT, 0 },
243 { "extern", RID_EXTERN, 0 },
244 { "false", RID_FALSE, 0 },
245 { "float", RID_FLOAT, 0 },
246 { "for", RID_FOR, 0 },
247 { "friend", RID_FRIEND, 0 },
248 { "goto", RID_GOTO, 0 },
250 { "inline", RID_INLINE, 0 },
251 { "int", RID_INT, 0 },
252 { "long", RID_LONG, 0 },
253 { "mutable", RID_MUTABLE, 0 },
254 { "namespace", RID_NAMESPACE, 0 },
255 { "new", RID_NEW, 0 },
256 { "operator", RID_OPERATOR, 0 },
257 { "private", RID_PRIVATE, 0 },
258 { "protected", RID_PROTECTED, 0 },
259 { "public", RID_PUBLIC, 0 },
260 { "register", RID_REGISTER, 0 },
261 { "reinterpret_cast", RID_REINTCAST, 0 },
262 { "return", RID_RETURN, 0 },
263 { "short", RID_SHORT, 0 },
264 { "signed", RID_SIGNED, 0 },
265 { "sizeof", RID_SIZEOF, 0 },
266 { "static", RID_STATIC, 0 },
267 { "static_cast", RID_STATCAST, 0 },
268 { "struct", RID_STRUCT, 0 },
269 { "switch", RID_SWITCH, 0 },
270 { "template", RID_TEMPLATE, 0 },
271 { "this", RID_THIS, 0 },
272 { "throw", RID_THROW, 0 },
273 { "true", RID_TRUE, 0 },
274 { "try", RID_TRY, 0 },
275 { "typedef", RID_TYPEDEF, 0 },
276 { "typename", RID_TYPENAME, 0 },
277 { "typeid", RID_TYPEID, 0 },
278 { "typeof", RID_TYPEOF, D_ASM|D_EXT },
279 { "union", RID_UNION, 0 },
280 { "unsigned", RID_UNSIGNED, 0 },
281 { "using", RID_USING, 0 },
282 { "virtual", RID_VIRTUAL, 0 },
283 { "void", RID_VOID, 0 },
284 { "volatile", RID_VOLATILE, 0 },
285 { "wchar_t", RID_WCHAR, 0 },
286 { "while", RID_WHILE, 0 },
295 int mask = ((flag_no_asm ? D_ASM : 0)
296 | (flag_no_gnu_keywords ? D_EXT : 0));
298 ridpointers = ggc_calloc ((int) RID_MAX, sizeof (tree));
299 for (i = 0; i < ARRAY_SIZE (reswords); i++)
301 id = get_identifier (reswords[i].word);
302 C_RID_CODE (id) = reswords[i].rid;
303 ridpointers [(int) reswords[i].rid] = id;
304 if (! (reswords[i].disable & mask))
305 C_IS_RESERVED_WORD (id) = 1;
310 init_cp_pragma (void)
312 c_register_pragma (0, "vtable", handle_pragma_vtable);
313 c_register_pragma (0, "unit", handle_pragma_unit);
314 c_register_pragma (0, "interface", handle_pragma_interface);
315 c_register_pragma (0, "implementation", handle_pragma_implementation);
316 c_register_pragma ("GCC", "interface", handle_pragma_interface);
317 c_register_pragma ("GCC", "implementation", handle_pragma_implementation);
318 c_register_pragma ("GCC", "java_exceptions", handle_pragma_java_exceptions);
321 /* Initialize the C++ front end. This function is very sensitive to
322 the exact order that things are done here. It would be nice if the
323 initialization done by this routine were moved to its subroutines,
324 and the ordering dependencies clarified and reduced. */
328 static const enum tree_code stmt_codes[] = {
333 INIT_STATEMENT_CODES (stmt_codes);
335 /* We cannot just assign to input_filename because it has already
336 been initialized and will be used later as an N_BINCL for stabs+
338 #ifdef USE_MAPPED_LOCATION
339 push_srcloc (BUILTINS_LOCATION);
341 push_srcloc ("<built-in>", 0);
346 init_cp_semantics ();
351 current_function_decl = NULL;
353 class_type_node = ridpointers[(int) RID_CLASS];
355 cxx_init_decl_processing ();
357 /* Create the built-in __null node. It is important that this is
359 null_node = make_node (INTEGER_CST);
360 TREE_TYPE (null_node) = c_common_type_for_size (POINTER_SIZE, 0);
361 ridpointers[RID_NULL] = null_node;
363 interface_unknown = 1;
365 /* The fact that G++ uses COMDAT for many entities (inline
366 functions, template instantiations, virtual tables, etc.) mean
367 that it is fundamentally unreliable to try to make decisions
368 about whether or not to output a particular entity until the end
369 of the compilation. However, the inliner requires that functions
370 be provided to the back end if they are to be inlined.
371 Therefore, we always use unit-at-a-time mode; in that mode, we
372 can provide entities to the back end and it will decide what to
373 emit based on what is actually needed. */
374 flag_unit_at_a_time = 1;
376 if (c_common_init () == false)
390 /* Helper function to load global variables with interface
394 extract_interface_info (void)
396 struct c_fileinfo *finfo;
398 finfo = get_fileinfo (input_filename);
399 interface_only = finfo->interface_only;
400 interface_unknown = finfo->interface_unknown;
403 /* Return nonzero if S is not considered part of an
404 INTERFACE/IMPLEMENTATION pair. Otherwise, return 0. */
407 interface_strcmp (const char* s)
409 /* Set the interface/implementation bits for this scope. */
410 struct impl_files *ifiles;
413 for (ifiles = impl_file_chain; ifiles; ifiles = ifiles->next)
415 const char *t1 = ifiles->filename;
418 if (*s1 != *t1 || *s1 == 0)
421 while (*s1 == *t1 && *s1 != 0)
428 /* Don't get faked out by xxx.yyy.cc vs xxx.zzz.cc. */
429 if (strchr (s1, '.') || strchr (t1, '.'))
432 if (*s1 == '\0' || s1[-1] != '.' || t1[-1] != '.')
445 /* Parse a #pragma whose sole argument is a string constant.
446 If OPT is true, the argument is optional. */
448 parse_strconst_pragma (const char* name, int opt)
457 if (c_lex (&x) != CPP_EOF)
458 warning ("junk at end of #pragma %s", name);
462 if (t == CPP_EOF && opt)
465 error ("invalid #pragma %s", name);
470 handle_pragma_vtable (cpp_reader* dfile ATTRIBUTE_UNUSED )
472 parse_strconst_pragma ("vtable", 0);
473 sorry ("#pragma vtable no longer supported");
477 handle_pragma_unit (cpp_reader* dfile ATTRIBUTE_UNUSED )
479 /* Validate syntax, but don't do anything. */
480 parse_strconst_pragma ("unit", 0);
484 handle_pragma_interface (cpp_reader* dfile ATTRIBUTE_UNUSED )
486 tree fname = parse_strconst_pragma ("interface", 1);
487 struct c_fileinfo *finfo;
488 const char *main_filename;
490 if (fname == (tree)-1)
493 main_filename = lbasename (input_filename);
495 main_filename = TREE_STRING_POINTER (fname);
497 finfo = get_fileinfo (input_filename);
499 if (impl_file_chain == 0)
501 /* If this is zero at this point, then we are
502 auto-implementing. */
503 if (main_input_filename == 0)
504 main_input_filename = input_filename;
507 interface_only = interface_strcmp (main_filename);
508 /* If MULTIPLE_SYMBOL_SPACES is set, we cannot assume that we can see
509 a definition in another file. */
510 if (!MULTIPLE_SYMBOL_SPACES || !interface_only)
511 interface_unknown = 0;
513 finfo->interface_only = interface_only;
514 finfo->interface_unknown = interface_unknown;
517 /* Note that we have seen a #pragma implementation for the key MAIN_FILENAME.
518 We used to only allow this at toplevel, but that restriction was buggy
519 in older compilers and it seems reasonable to allow it in the headers
520 themselves, too. It only needs to precede the matching #p interface.
522 We don't touch interface_only or interface_unknown; the user must specify
523 a matching #p interface for this to have any effect. */
526 handle_pragma_implementation (cpp_reader* dfile ATTRIBUTE_UNUSED )
528 tree fname = parse_strconst_pragma ("implementation", 1);
529 const char *main_filename;
530 struct impl_files *ifiles = impl_file_chain;
532 if (fname == (tree)-1)
537 if (main_input_filename)
538 main_filename = main_input_filename;
540 main_filename = input_filename;
541 main_filename = lbasename (main_filename);
545 main_filename = TREE_STRING_POINTER (fname);
546 if (cpp_included (parse_in, main_filename))
547 warning ("#pragma implementation for %s appears after file is included",
551 for (; ifiles; ifiles = ifiles->next)
553 if (! strcmp (ifiles->filename, main_filename))
558 ifiles = xmalloc (sizeof (struct impl_files));
559 ifiles->filename = main_filename;
560 ifiles->next = impl_file_chain;
561 impl_file_chain = ifiles;
565 /* Indicate that this file uses Java-personality exception handling. */
567 handle_pragma_java_exceptions (cpp_reader* dfile ATTRIBUTE_UNUSED )
570 if (c_lex (&x) != CPP_EOF)
571 warning ("junk at end of #pragma GCC java_exceptions");
573 choose_personality_routine (lang_java);
576 /* Issue an error message indicating that the lookup of NAME (an
577 IDENTIFIER_NODE) failed. Returns the ERROR_MARK_NODE. */
580 unqualified_name_lookup_error (tree name)
582 if (IDENTIFIER_OPNAME_P (name))
584 if (name != ansi_opname (ERROR_MARK))
585 error ("`%D' not defined", name);
589 error ("`%D' was not declared in this scope", name);
590 /* Prevent repeated error messages by creating a VAR_DECL with
591 this NAME in the innermost block scope. */
592 if (current_function_decl)
595 decl = build_decl (VAR_DECL, name, error_mark_node);
596 DECL_CONTEXT (decl) = current_function_decl;
597 push_local_binding (name, decl, 0);
601 return error_mark_node;
604 /* Like unqualified_name_lookup_error, but NAME is an unqualified-id
605 used as a function. Returns an appropriate expression for
609 unqualified_fn_lookup_error (tree name)
611 if (processing_template_decl)
613 /* In a template, it is invalid to write "f()" or "f(3)" if no
614 declaration of "f" is available. Historically, G++ and most
615 other compilers accepted that usage since they deferred all name
616 lookup until instantiation time rather than doing unqualified
617 name lookup at template definition time; explain to the user what
620 Note that we have the exact wording of the following message in
621 the manual (trouble.texi, node "Name lookup"), so they need to
623 pedwarn ("there are no arguments to `%D' that depend on a template "
624 "parameter, so a declaration of `%D' must be available",
627 if (!flag_permissive)
632 error ("(if you use `-fpermissive', G++ will accept your code, "
633 "but allowing the use of an undeclared name is "
641 return unqualified_name_lookup_error (name);
645 build_lang_decl (enum tree_code code, tree name, tree type)
649 t = build_decl (code, name, type);
650 retrofit_lang_decl (t);
652 /* All nesting of C++ functions is lexical; there is never a "static
653 chain" in the sense of GNU C nested functions. */
654 if (code == FUNCTION_DECL)
655 DECL_NO_STATIC_CHAIN (t) = 1;
660 /* Add DECL_LANG_SPECIFIC info to T. Called from build_lang_decl
661 and pushdecl (for functions generated by the backend). */
664 retrofit_lang_decl (tree t)
666 struct lang_decl *ld;
669 if (CAN_HAVE_FULL_LANG_DECL_P (t))
670 size = sizeof (struct lang_decl);
672 size = sizeof (struct lang_decl_flags);
674 ld = GGC_CNEWVAR (struct lang_decl, size);
676 ld->decl_flags.can_be_full = CAN_HAVE_FULL_LANG_DECL_P (t) ? 1 : 0;
677 ld->decl_flags.u1sel = TREE_CODE (t) == NAMESPACE_DECL ? 1 : 0;
678 ld->decl_flags.u2sel = 0;
679 if (ld->decl_flags.can_be_full)
680 ld->u.f.u3sel = TREE_CODE (t) == FUNCTION_DECL ? 1 : 0;
682 DECL_LANG_SPECIFIC (t) = ld;
683 if (current_lang_name == lang_name_cplusplus
684 || decl_linkage (t) == lk_none)
685 SET_DECL_LANGUAGE (t, lang_cplusplus);
686 else if (current_lang_name == lang_name_c)
687 SET_DECL_LANGUAGE (t, lang_c);
688 else if (current_lang_name == lang_name_java)
689 SET_DECL_LANGUAGE (t, lang_java);
693 #ifdef GATHER_STATISTICS
694 tree_node_counts[(int)lang_decl] += 1;
695 tree_node_sizes[(int)lang_decl] += size;
700 cxx_dup_lang_specific_decl (tree node)
703 struct lang_decl *ld;
705 if (! DECL_LANG_SPECIFIC (node))
708 if (!CAN_HAVE_FULL_LANG_DECL_P (node))
709 size = sizeof (struct lang_decl_flags);
711 size = sizeof (struct lang_decl);
712 ld = GGC_NEWVAR (struct lang_decl, size);
713 memcpy (ld, DECL_LANG_SPECIFIC (node), size);
714 DECL_LANG_SPECIFIC (node) = ld;
716 #ifdef GATHER_STATISTICS
717 tree_node_counts[(int)lang_decl] += 1;
718 tree_node_sizes[(int)lang_decl] += size;
722 /* Copy DECL, including any language-specific parts. */
725 copy_decl (tree decl)
729 copy = copy_node (decl);
730 cxx_dup_lang_specific_decl (copy);
734 /* Replace the shared language-specific parts of NODE with a new copy. */
737 copy_lang_type (tree node)
740 struct lang_type *lt;
742 if (! TYPE_LANG_SPECIFIC (node))
745 if (TYPE_LANG_SPECIFIC (node)->u.h.is_lang_type_class)
746 size = sizeof (struct lang_type);
748 size = sizeof (struct lang_type_ptrmem);
749 lt = GGC_NEWVAR (struct lang_type, size);
750 memcpy (lt, TYPE_LANG_SPECIFIC (node), size);
751 TYPE_LANG_SPECIFIC (node) = lt;
753 #ifdef GATHER_STATISTICS
754 tree_node_counts[(int)lang_type] += 1;
755 tree_node_sizes[(int)lang_type] += size;
759 /* Copy TYPE, including any language-specific parts. */
762 copy_type (tree type)
766 copy = copy_node (type);
767 copy_lang_type (copy);
772 cxx_make_type (enum tree_code code)
774 tree t = make_node (code);
776 /* Create lang_type structure. */
777 if (IS_AGGR_TYPE_CODE (code)
778 || code == BOUND_TEMPLATE_TEMPLATE_PARM)
780 struct lang_type *pi = GGC_CNEW (struct lang_type);
782 TYPE_LANG_SPECIFIC (t) = pi;
783 pi->u.c.h.is_lang_type_class = 1;
785 #ifdef GATHER_STATISTICS
786 tree_node_counts[(int)lang_type] += 1;
787 tree_node_sizes[(int)lang_type] += sizeof (struct lang_type);
791 /* Set up some flags that give proper default behavior. */
792 if (IS_AGGR_TYPE_CODE (code))
794 SET_CLASSTYPE_INTERFACE_UNKNOWN_X (t, interface_unknown);
795 CLASSTYPE_INTERFACE_ONLY (t) = interface_only;
798 /* We use TYPE_ALIAS_SET for the CLASSTYPE_MARKED bits. But,
799 TYPE_ALIAS_SET is initialized to -1 by default, so we must
801 TYPE_ALIAS_SET (t) = 0;
807 make_aggr_type (enum tree_code code)
809 tree t = cxx_make_type (code);
811 if (IS_AGGR_TYPE_CODE (code))
812 SET_IS_AGGR_TYPE (t, 1);
817 /* Return the type-qualifier corresponding to the identifier given by
821 cp_type_qual_from_rid (tree rid)
823 if (rid == ridpointers[(int) RID_CONST])
824 return TYPE_QUAL_CONST;
825 else if (rid == ridpointers[(int) RID_VOLATILE])
826 return TYPE_QUAL_VOLATILE;
827 else if (rid == ridpointers[(int) RID_RESTRICT])
828 return TYPE_QUAL_RESTRICT;
831 return TYPE_UNQUALIFIED;