1 /* Definitions for CPP library.
2 Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
3 Written by Per Bothner, 1994-95.
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published by the
7 Free Software Foundation; either version 2, or (at your option) any
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 In other words, you are welcome to use, share and improve this program.
20 You are forbidden to forbid anyone else to use, share and improve
21 what you give them. Help stamp out software-hoarding! */
22 #ifndef __GCC_CPPLIB__
23 #define __GCC_CPPLIB__
25 #include <sys/types.h>
31 typedef unsigned char U_CHAR;
33 typedef struct cpp_reader cpp_reader;
34 typedef struct cpp_buffer cpp_buffer;
35 typedef struct cpp_options cpp_options;
36 typedef struct hashnode cpp_hashnode;
43 CPP_VSPACE, /* newlines and #line directives */
54 CPP_SEMICOLON,/* ";" */
55 CPP_3DOTS, /* "..." */
57 CPP_ANDAND, /* "&&" */
66 CPP_MINMIN, /* "--" */
68 /* POP_TOKEN is returned when we've popped a cpp_buffer. */
72 typedef enum cpp_token (*parse_underflow_t) PARAMS((cpp_reader *));
73 typedef int (*parse_cleanup_t) PARAMS((cpp_buffer *, cpp_reader *));
75 extern void parse_set_mark PARAMS ((cpp_reader *));
76 extern void parse_clear_mark PARAMS ((cpp_reader *));
77 extern void parse_goto_mark PARAMS ((cpp_reader *));
79 extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
80 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
81 extern enum cpp_token cpp_get_token PARAMS ((cpp_reader *));
82 extern void cpp_skip_hspace PARAMS((cpp_reader *));
83 extern enum cpp_token cpp_get_non_space_token PARAMS ((cpp_reader *));
85 /* This frees resources used by PFILE. */
86 extern void cpp_cleanup PARAMS ((cpp_reader *PFILE));
90 unsigned char *cur; /* current position */
91 unsigned char *rlimit; /* end of valid data */
92 unsigned char *buf; /* entire buffer */
93 unsigned char *alimit; /* end of allocated buffer */
94 unsigned char *line_base; /* start of current line */
96 struct cpp_buffer *prev;
98 /* Real filename. (Alias to ->ihash->fname, obsolete). */
100 /* Filename specified with #line command. */
102 /* Last filename specified with #line command. */
103 char *last_nominal_fname;
104 /* Actual directory of this file, used only for "" includes */
105 struct file_name_list *actual_dir;
107 /* Pointer into the include hash table. Used for include_next and
108 to record control macros. */
109 struct include_hash *ihash;
111 long lineno; /* Line number at CPP_LINE_BASE. */
112 long colno; /* Column number at CPP_LINE_BASE. */
113 long mark; /* Saved position for lengthy backtrack. */
114 parse_underflow_t underflow;
115 parse_cleanup_t cleanup;
118 /* Value of if_stack at start of this file.
119 Used to prohibit unmatched #endif (etc) in an include file. */
120 struct if_stack *if_stack;
122 /* True if this is a header file included using <FILENAME>. */
123 char system_header_p;
126 /* True if buffer contains escape sequences.
127 Currently there are three kinds:
128 "@-" means following identifier should not be macro-expanded.
129 "@ " means a token-separator. This turns into " " in final output
130 if not stringizing and needed to separate tokens; otherwise nothing.
131 "@@" means a normal '@'.
132 (An '@' inside a string stands for itself and is never an escape.) */
136 struct file_name_map_list;
138 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
139 efficiency, and partly to limit runaway recursion. */
140 #define CPP_STACK_MAX 200
142 /* A cpp_reader encapsulates the "state" of a pre-processor run.
143 Applying cpp_get_token repeatedly yields a stream of pre-processor
144 tokens. Usually, there is only one cpp_reader object active. */
148 parse_underflow_t get_token;
152 /* A buffer used for both for cpp_get_token's output, and also internally. */
153 unsigned char *token_buffer;
154 /* Allocated size of token_buffer. CPP_RESERVE allocates space. */
155 unsigned int token_buffer_size;
156 /* End of the written part of token_buffer. */
157 unsigned char *limit;
159 /* Error counter for exit code */
162 /* Line where a newline was first seen in a string constant. */
163 int multiline_string_line;
165 /* Current depth in #include directives that use <...>. */
166 int system_include_depth;
168 /* Current depth of buffer stack. */
169 int buffer_stack_depth;
171 /* Hash table of macros and assertions. See cpphash.c */
172 #define HASHSIZE 1403
173 struct hashnode **hashtab;
175 /* Hash table of other included files. See cppfiles.c */
176 #define ALL_INCLUDE_HASHSIZE 71
177 struct include_hash *all_include_files[ALL_INCLUDE_HASHSIZE];
179 /* Chain of `actual directory' file_name_list entries,
181 struct file_name_list *actual_dirs;
183 /* Current maximum length of directory names in the search path
184 for include files. (Altered as we get more of them.) */
185 unsigned int max_include_len;
187 struct if_stack *if_stack;
189 /* Nonzero means we are inside an IF during a -pcp run. In this mode
190 macro expansion is done, and preconditions are output for all macro
191 uses requiring them. */
194 /* Nonzero means we have printed (while error reporting) a list of
195 containing files that matches the current status. */
196 char input_stack_listing_current;
198 /* If non-zero, macros are not expanded. */
199 char no_macro_expand;
201 /* Print column number in error messages. */
204 /* We're printed a warning recommending against using #import. */
207 /* If true, character between '<' and '>' are a single (string) token. */
208 char parsing_include_directive;
210 /* True if escape sequences (as described for has_escapes in
211 parse_buffer) should be emitted. */
214 /* 0: Have seen non-white-space on this line.
215 1: Only seen white space so far on this line.
216 2: Only seen white space so far in this file. */
217 char only_seen_white;
219 /* Nonzero means this file was included with a -imacros or -include
220 command line and should not be recorded as an include file. */
228 /* Buffer of -M output. */
231 /* Number of bytes allocated in above. */
232 int deps_allocated_size;
234 /* Number of bytes used. */
237 /* Number of bytes since the last newline. */
241 #define CPP_FATAL_LIMIT 1000
242 /* True if we have seen a "fatal" error. */
243 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
245 #define CPP_BUF_PEEK(BUFFER) \
246 ((BUFFER)->cur < (BUFFER)->rlimit ? *(BUFFER)->cur : EOF)
247 #define CPP_BUF_GET(BUFFER) \
248 ((BUFFER)->cur < (BUFFER)->rlimit ? *(BUFFER)->cur++ : EOF)
249 #define CPP_FORWARD(BUFFER, N) ((BUFFER)->cur += (N))
251 /* Macros for manipulating the token_buffer. */
253 #define CPP_OUT_BUFFER(PFILE) ((PFILE)->token_buffer)
255 /* Number of characters currently in PFILE's output buffer. */
256 #define CPP_WRITTEN(PFILE) ((size_t)((PFILE)->limit - (PFILE)->token_buffer))
257 #define CPP_PWRITTEN(PFILE) ((PFILE)->limit)
259 /* Make sure PFILE->token_buffer has space for at least N more characters. */
260 #define CPP_RESERVE(PFILE, N) \
261 (CPP_WRITTEN (PFILE) + (size_t)(N) > (PFILE)->token_buffer_size \
262 && (cpp_grow_buffer (PFILE, N), 0))
264 /* Append string STR (of length N) to PFILE's output buffer.
265 Assume there is enough space. */
266 #define CPP_PUTS_Q(PFILE, STR, N) \
267 (bcopy (STR, (PFILE)->limit, (N)), (PFILE)->limit += (N))
268 /* Append string STR (of length N) to PFILE's output buffer. Make space. */
269 #define CPP_PUTS(PFILE, STR, N) CPP_RESERVE(PFILE, N), CPP_PUTS_Q(PFILE, STR,N)
270 /* Append character CH to PFILE's output buffer. Assume sufficient space. */
271 #define CPP_PUTC_Q(PFILE, CH) (*(PFILE)->limit++ = (CH))
272 /* Append character CH to PFILE's output buffer. Make space if need be. */
273 #define CPP_PUTC(PFILE, CH) (CPP_RESERVE (PFILE, 1), CPP_PUTC_Q (PFILE, CH))
274 /* Make sure PFILE->limit is followed by '\0'. */
275 #define CPP_NUL_TERMINATE_Q(PFILE) (*(PFILE)->limit = 0)
276 #define CPP_NUL_TERMINATE(PFILE) (CPP_RESERVE(PFILE, 1), *(PFILE)->limit = 0)
277 #define CPP_ADJUST_WRITTEN(PFILE,DELTA) ((PFILE)->limit += (DELTA))
278 #define CPP_SET_WRITTEN(PFILE,N) ((PFILE)->limit = (PFILE)->token_buffer + (N))
280 /* Advance the current line by one. */
281 #define CPP_BUMP_BUFFER_LINE(PBUF) ((PBUF)->lineno++,\
282 (PBUF)->line_base = (PBUF)->cur)
283 #define CPP_BUMP_LINE(PFILE) CPP_BUMP_BUFFER_LINE(CPP_BUFFER(PFILE))
285 #define CPP_OPTIONS(PFILE) ((PFILE)->opts)
286 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
287 #define CPP_PREV_BUFFER(BUFFER) ((BUFFER)->prev)
288 /* The bottom of the buffer stack. */
289 #define CPP_NULL_BUFFER(PFILE) NULL
291 /* The `pending' structure accumulates all the options that are not
292 actually processed until we hit cpp_start_read. It consists of
293 several lists, one for each type of option. We keep both head and
294 tail pointers for quick insertion. */
297 struct pending_option *define_head, *define_tail;
298 struct pending_option *assert_head, *assert_tail;
300 struct file_name_list *quote_head, *quote_tail;
301 struct file_name_list *brack_head, *brack_tail;
302 struct file_name_list *systm_head, *systm_tail;
303 struct file_name_list *after_head, *after_tail;
305 struct pending_option *imacros_head, *imacros_tail;
306 struct pending_option *include_head, *include_tail;
309 /* Pointed to by cpp_reader.opts. */
313 /* Name of output file, for error messages. */
316 struct file_name_map_list *map_list;
318 /* Non-0 means -v, so print the full set of include dirs. */
321 /* Nonzero means use extra default include directories for C++. */
325 /* Nonzero means handle cplusplus style comments */
327 char cplusplus_comments;
329 /* Nonzero means handle #import, for objective C. */
333 /* Nonzero means this is an assembly file, and allow
334 unknown directives, which could be comments. */
338 /* Nonzero means turn NOTREACHED into #pragma NOTREACHED etc */
342 /* Nonzero means handle CHILL comment syntax
343 and output CHILL string delimiter for __DATE___ etc. */
347 /* Nonzero means copy comments into the output file. */
349 char put_out_comments;
351 /* Nonzero means process the ANSI trigraph sequences. */
355 /* Nonzero means print the names of included files rather than
356 the preprocessed output. 1 means just the #include "...",
357 2 means #include <...> as well. */
361 /* Nonzero if missing .h files in -M output are assumed to be generated
362 files and not errors. */
364 char print_deps_missing_files;
366 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
367 char print_deps_append;
369 /* Nonzero means print names of header files (-H). */
371 char print_include_names;
373 /* Nonzero means try to make failure to fit ANSI C an error. */
375 char pedantic_errors;
377 /* Nonzero means don't print warning messages. -w. */
379 char inhibit_warnings;
381 /* Nonzero means warn if slash-star appears in a comment. */
385 /* Nonzero means warn if there are any trigraphs. */
389 /* Nonzero means warn if #import is used. */
393 /* Nonzero means warn if a macro argument is (or would be)
394 stringified with -traditional. */
398 /* Nonzero means turn warnings into errors. */
400 char warnings_are_errors;
402 /* Nonzero causes output not to be done,
403 but directives such as #define that have side effects
408 /* Nonzero means we should look for header.gcc files that remap file
412 /* Nonzero means don't output line number information. */
414 char no_line_commands;
416 /* Nonzero means output the text in failing conditionals,
417 inside #failed ... #endfailed. */
419 char output_conditionals;
421 /* Nonzero means -I- has been seen,
422 so don't look for #include "foo" the source-file directory. */
425 /* Zero means dollar signs are punctuation.
426 This used to be needed for conformance to the C Standard,
427 before the C Standard was corrected. */
428 char dollars_in_ident;
430 /* Nonzero means try to imitate old fashioned non-ANSI preprocessor. */
433 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
436 /* Nonzero for the 1989 C Standard, including corrigenda and amendments. */
439 /* Nonzero for the 199x C Standard, including corrigenda and amendments. */
442 /* Nonzero means give all the error messages the ANSI standard requires. */
445 char done_initializing;
447 /* Search paths for include files. */
448 struct file_name_list *quote_include; /* First dir to search for "file" */
449 struct file_name_list *bracket_include;/* First dir to search for <file> */
451 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
452 in the standard include file directories. */
453 char *include_prefix;
454 int include_prefix_len;
456 char no_standard_includes;
457 char no_standard_cplusplus_includes;
459 /* dump_only means inhibit output of the preprocessed text
460 and instead output the definitions of all user-defined
461 macros in a form suitable for use as input to cccp.
462 dump_names means pass #define and the macro name through to output.
463 dump_definitions means pass the whole definition (plus #define) through
466 enum {dump_none = 0, dump_only, dump_names, dump_definitions}
469 /* Nonzero means pass all #define and #undef directives which we actually
470 process through to the output stream. This feature is used primarily
471 to allow cc1 to record the #defines and #undefs for the sake of
472 debuggers which understand about preprocessor macros, but it may
473 also be useful with -E to figure out how symbols are defined, and
474 where they are defined. */
477 /* Nonzero means pass #include lines through to the output,
478 even if they are ifdefed out. */
481 /* Pending options - -D, -U, -A, -I, -ixxx. */
482 struct cpp_pending *pending;
484 /* File name which deps are being written to.
485 This is 0 if deps are being written to stdout. */
488 /* Target-name to write with the dependency information. */
492 #define CPP_TRADITIONAL(PFILE) (CPP_OPTIONS(PFILE)-> traditional)
493 #define CPP_WARN_UNDEF(PFILE) (CPP_OPTIONS(PFILE)->warn_undef)
494 #define CPP_C89(PFILE) (CPP_OPTIONS(PFILE)->c89)
495 #define CPP_PEDANTIC(PFILE) (CPP_OPTIONS (PFILE)->pedantic)
496 #define CPP_PRINT_DEPS(PFILE) (CPP_OPTIONS (PFILE)->print_deps)
498 /* List of directories to look for include files in. */
499 struct file_name_list
501 struct file_name_list *next;
502 struct file_name_list *alloc; /* for the cache of
503 current directory entries */
506 /* We use these to tell if the directory mentioned here is a duplicate
507 of an earlier directory on the search path. */
510 /* If the following is nonzero, it is a C-language system include
513 /* Mapping of file names for this directory.
514 Only used on MS-DOS and related platforms. */
515 struct file_name_map *name_map;
517 #define ABSOLUTE_PATH ((struct file_name_list *)-1)
519 /* This structure is used for the table of all includes. It is
520 indexed by the `short name' (the name as it appeared in the
521 #include statement) which is stored in *nshort. */
524 struct include_hash *next;
525 /* Next file with the same short name but a
526 different (partial) pathname). */
527 struct include_hash *next_this_file;
529 /* Location of the file in the include search path.
530 Used for include_next */
531 struct file_name_list *foundhere;
532 char *name; /* (partial) pathname of file */
533 char *nshort; /* name of file as referenced in #include */
534 char *control_macro; /* macro, if any, preventing reinclusion - see
535 redundant_include_p */
536 char *buf, *limit; /* for file content cache, not yet implemented */
539 /* Name under which this program was invoked. */
541 extern char *progname;
543 /* The structure of a node in the hash table. The hash table
544 has entries for all tokens defined by #define commands (type T_MACRO),
545 plus some special tokens like __LINE__ (these each have their own
546 type, and the appropriate code is run when that type of node is seen.
547 It does not contain control words like "#define", which are recognized
548 by a separate piece of code. */
550 /* different flavors of hash nodes --- also used in keyword table */
552 T_DEFINE = 1, /* the `#define' keyword */
553 T_INCLUDE, /* the `#include' keyword */
554 T_INCLUDE_NEXT, /* the `#include_next' keyword */
555 T_IMPORT, /* the `#import' keyword */
556 T_IFDEF, /* the `#ifdef' keyword */
557 T_IFNDEF, /* the `#ifndef' keyword */
558 T_IF, /* the `#if' keyword */
559 T_ELSE, /* `#else' */
560 T_PRAGMA, /* `#pragma' */
561 T_ELIF, /* `#elif' */
562 T_UNDEF, /* `#undef' */
563 T_LINE, /* `#line' */
564 T_ERROR, /* `#error' */
565 T_WARNING, /* `#warning' */
566 T_ENDIF, /* `#endif' */
567 T_SCCS, /* `#sccs', used on system V. */
568 T_IDENT, /* `#ident', used on system V. */
569 T_ASSERT, /* `#assert', taken from system V. */
570 T_UNASSERT, /* `#unassert', taken from system V. */
571 T_SPECLINE, /* special symbol `__LINE__' */
572 T_DATE, /* `__DATE__' */
573 T_FILE, /* `__FILE__' */
574 T_BASE_FILE, /* `__BASE_FILE__' */
575 T_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
576 T_VERSION, /* `__VERSION__' */
577 T_TIME, /* `__TIME__' */
578 T_STDC, /* `__STDC__' */
579 T_CONST, /* Constant string, used by `__SIZE_TYPE__' etc */
580 T_MACRO, /* macro defined by `#define' */
581 T_DISABLED, /* macro temporarily turned off for rescan */
582 T_PCSTRING, /* precompiled string (hashval is KEYDEF *) */
583 T_UNUSED /* Used for something not defined. */
586 /* Structure returned by create_definition */
587 typedef struct macrodef MACRODEF;
590 struct definition *defn;
591 unsigned char *symnam;
595 /* Structure allocated for every #define. For a simple replacement
598 nargs = -1, the `pattern' list is null, and the expansion is just
599 the replacement text. Nargs = 0 means a functionlike macro with no args,
601 #define getchar() getc (stdin) .
602 When there are args, the expansion is the replacement text with the
603 args squashed out, and the reflist is a list describing how to
604 build the output from the input: e.g., "3 chars, then the 1st arg,
605 then 9 chars, then the 3rd arg, then 0 chars, then the 2nd arg".
606 The chars here come from the expansion. Whatever is left of the
607 expansion after the last arg-occurrence is copied after that arg.
608 Note that the reflist can be arbitrarily long---
609 its length depends on the number of times the arguments appear in
610 the replacement text, not how many args there are. Example:
611 #define f(x) x+x+x+x+x+x+x would have replacement text "++++++" and
613 { (0, 1), (1, 1), (1, 1), ..., (1, 1), NULL }
614 where (x, y) means (nchars, argno). */
616 typedef struct definition DEFINITION;
619 int length; /* length of expansion string */
620 int predefined; /* True if the macro was builtin or */
621 /* came from the command line */
622 unsigned char *expansion;
623 int line; /* Line number of definition */
624 char *file; /* File of definition */
625 char rest_args; /* Nonzero if last arg. absorbs the rest */
627 struct reflist *next;
628 char stringify; /* nonzero if this arg was preceded by a
630 char raw_before; /* Nonzero if a ## operator before arg. */
631 char raw_after; /* Nonzero if a ## operator after arg. */
632 char rest_args; /* Nonzero if this arg. absorbs the rest */
633 int nchars; /* Number of literal chars to copy before
634 this arg occurrence. */
635 int argno; /* Number of arg to substitute (origin-0) */
638 /* Names of macro args, concatenated in reverse order
639 with comma-space between them.
640 The only use of this is that we warn on redefinition
641 if this differs between the old and new definitions. */
642 unsigned char *argnames;
646 /* These tables are not really `const', but they are only modified at
647 initialization time, in a separate translation unit from the rest
648 of the library. We let the rest of the library think they are `const'
649 to get better code and some additional sanity checks. */
651 #define FAKE_CONST const
653 extern FAKE_CONST unsigned char is_idstart[256];
654 extern FAKE_CONST unsigned char is_idchar[256];
655 extern FAKE_CONST unsigned char is_hor_space[256];
656 extern FAKE_CONST unsigned char is_space[256];
657 extern FAKE_CONST unsigned char trigraph_table[256];
660 /* Stack of conditionals currently in progress
661 (including both successful and failing conditionals). */
664 struct if_stack *next; /* for chaining to the next stack frame */
665 char *fname; /* copied from input when frame is made */
666 int lineno; /* similarly */
667 int if_succeeded; /* true if a leg of this if-group
668 has been passed through rescan */
669 unsigned char *control_macro; /* For #ifndef at start of file,
670 this is the macro name tested. */
671 enum node_type type; /* type of last directive seen in this group */
673 typedef struct if_stack IF_STACK_FRAME;
675 extern void cpp_buf_line_and_col PARAMS((cpp_buffer *, long *, long *));
676 extern cpp_buffer* cpp_file_buffer PARAMS((cpp_reader *));
677 extern void cpp_define PARAMS ((cpp_reader *, unsigned char *));
678 extern void cpp_assert PARAMS ((cpp_reader *, unsigned char *));
679 extern void cpp_undef PARAMS ((cpp_reader *, unsigned char *));
680 extern void cpp_unassert PARAMS ((cpp_reader *, unsigned char *));
682 extern void cpp_error PVPROTO ((cpp_reader *, const char *, ...))
684 extern void cpp_warning PVPROTO ((cpp_reader *, const char *, ...))
686 extern void cpp_pedwarn PVPROTO ((cpp_reader *, const char *, ...))
688 extern void cpp_error_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
690 extern void cpp_warning_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
692 extern void cpp_pedwarn_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
694 extern void cpp_pedwarn_with_file_and_line PVPROTO ((cpp_reader *, char *, int, const char *, ...))
696 extern void cpp_message_from_errno PROTO ((cpp_reader *, int, const char *));
697 extern void cpp_error_from_errno PROTO ((cpp_reader *, const char *));
698 extern void cpp_perror_with_name PROTO ((cpp_reader *, const char *));
699 extern void v_cpp_message PROTO ((cpp_reader *, int, const char *, va_list));
701 extern void cpp_grow_buffer PARAMS ((cpp_reader *, long));
702 extern HOST_WIDEST_INT cpp_parse_escape PARAMS ((cpp_reader *, char **, HOST_WIDEST_INT));
703 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
704 unsigned char *, long));
705 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
707 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *, const unsigned char *,
709 extern void cpp_reader_init PARAMS ((cpp_reader *));
710 extern void cpp_options_init PARAMS ((cpp_options *));
711 extern int cpp_start_read PARAMS ((cpp_reader *, char *));
712 extern int cpp_read_check_assertion PARAMS ((cpp_reader *));
713 extern int scan_decls PARAMS ((cpp_reader *, int, char **));
714 extern void skip_rest_of_line PARAMS ((cpp_reader *));
715 extern void cpp_finish PARAMS ((cpp_reader *));
717 extern void quote_string PARAMS ((cpp_reader *, const char *));
718 extern void cpp_expand_to_buffer PARAMS ((cpp_reader *, U_CHAR *, int));
719 extern void cpp_scan_buffer PARAMS ((cpp_reader *));
720 extern int check_macro_name PARAMS ((cpp_reader *, U_CHAR *, int));
722 /* Last arg to output_line_command. */
723 enum file_change_code {same_file, enter_file, leave_file};
724 extern void output_line_command PARAMS ((cpp_reader *, int,
725 enum file_change_code));
727 /* From cpperror.c */
728 extern void cpp_fatal PVPROTO ((cpp_reader *, const char *, ...))
730 extern void cpp_message PVPROTO ((cpp_reader *, int, const char *, ...))
732 extern void cpp_pfatal_with_name PROTO ((cpp_reader *, const char *));
733 extern void cpp_file_line_for_message PROTO ((cpp_reader *, char *, int, int));
734 extern void cpp_print_containing_files PROTO ((cpp_reader *));
735 extern void cpp_notice PVPROTO ((const char *msgid, ...)) ATTRIBUTE_PRINTF_1;
738 extern void simplify_pathname PROTO ((char *));
739 extern void merge_include_chains PROTO ((struct cpp_options *));
740 extern int find_include_file PROTO ((cpp_reader *, char *,
741 struct file_name_list *,
742 struct include_hash **,
744 extern int finclude PROTO ((cpp_reader *, int,
745 struct include_hash *));
746 extern void deps_output PROTO ((cpp_reader *, char *, int));
747 extern struct include_hash *include_hash PROTO ((cpp_reader *, char *, int));
749 #ifndef INCLUDE_LEN_FUDGE
750 #define INCLUDE_LEN_FUDGE 0
757 #endif /* __GCC_CPPLIB__ */