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 /* A parse_marker indicates a previous position,
76 which we can backtrack to. */
80 struct parse_marker *next;
84 extern void parse_set_mark PARAMS ((struct parse_marker *, cpp_reader *));
85 extern void parse_clear_mark PARAMS ((struct parse_marker *));
86 extern void parse_goto_mark PARAMS((struct parse_marker *, cpp_reader *));
87 extern void parse_move_mark PARAMS((struct parse_marker *, cpp_reader *));
89 extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
90 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
91 extern enum cpp_token cpp_get_token PARAMS ((cpp_reader *));
92 extern void cpp_skip_hspace PARAMS((cpp_reader *));
93 extern enum cpp_token cpp_get_non_space_token PARAMS ((cpp_reader *));
95 /* This frees resources used by PFILE. */
96 extern void cpp_cleanup PARAMS ((cpp_reader *PFILE));
98 /* If we have a huge buffer, may need to cache more recent counts */
99 #define CPP_LINE_BASE(BUF) ((BUF)->buf + (BUF)->line_base)
103 unsigned char *cur; /* current position */
104 unsigned char *rlimit; /* end of valid data */
105 unsigned char *buf; /* entire buffer */
106 unsigned char *alimit; /* end of allocated buffer */
108 struct cpp_buffer *prev;
110 /* Real filename. (Alias to ->ihash->fname, obsolete). */
112 /* Filename specified with #line command. */
114 /* Last filename specified with #line command. */
115 char *last_nominal_fname;
116 /* Actual directory of this file, used only for "" includes */
117 struct file_name_list *actual_dir;
119 /* Pointer into the include hash table. Used for include_next and
120 to record control macros. */
121 struct include_hash *ihash;
124 long lineno; /* Line number at CPP_LINE_BASE. */
125 long colno; /* Column number at CPP_LINE_BASE. */
126 parse_underflow_t underflow;
127 parse_cleanup_t cleanup;
129 struct parse_marker *marks;
130 /* Value of if_stack at start of this file.
131 Used to prohibit unmatched #endif (etc) in an include file. */
132 struct if_stack *if_stack;
134 /* True if this is a header file included using <FILENAME>. */
135 char system_header_p;
138 /* True if buffer contains escape sequences.
139 Currently there are three kinds:
140 "@-" means following identifier should not be macro-expanded.
141 "@ " means a token-separator. This turns into " " in final output
142 if not stringizing and needed to separate tokens; otherwise nothing.
143 "@@" means a normal '@'.
144 (An '@' inside a string stands for itself and is never an escape.) */
148 struct cpp_pending; /* Forward declaration - for C++. */
149 struct file_name_map_list;
151 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
152 efficiency, and partly to limit runaway recursion. */
153 #define CPP_STACK_MAX 200
155 /* A cpp_reader encapsulates the "state" of a pre-processor run.
156 Applying cpp_get_token repeatedly yields a stream of pre-processor
157 tokens. Usually, there is only one cpp_reader object active. */
161 parse_underflow_t get_token;
165 /* A buffer used for both for cpp_get_token's output, and also internally. */
166 unsigned char *token_buffer;
167 /* Allocated size of token_buffer. CPP_RESERVE allocates space. */
168 unsigned int token_buffer_size;
169 /* End of the written part of token_buffer. */
170 unsigned char *limit;
172 /* Error counter for exit code */
175 /* Line where a newline was first seen in a string constant. */
176 int multiline_string_line;
178 /* Current depth in #include directives that use <...>. */
179 int system_include_depth;
181 /* Current depth of buffer stack. */
182 int buffer_stack_depth;
184 /* Hash table of other included files. See cppfiles.c */
185 #define ALL_INCLUDE_HASHSIZE 71
186 struct include_hash *all_include_files[ALL_INCLUDE_HASHSIZE];
188 /* Chain of `actual directory' file_name_list entries,
190 struct file_name_list *actual_dirs;
192 /* Current maximum length of directory names in the search path
193 for include files. (Altered as we get more of them.) */
194 unsigned int max_include_len;
196 struct if_stack *if_stack;
198 /* Nonzero means we are inside an IF during a -pcp run. In this mode
199 macro expansion is done, and preconditions are output for all macro
200 uses requiring them. */
203 /* Nonzero means we have printed (while error reporting) a list of
204 containing files that matches the current status. */
205 char input_stack_listing_current;
207 /* If non-zero, macros are not expanded. */
208 char no_macro_expand;
210 /* Print column number in error messages. */
213 /* We're printed a warning recommending against using #import. */
216 /* If true, character between '<' and '>' are a single (string) token. */
217 char parsing_include_directive;
219 /* True if escape sequences (as described for has_escapes in
220 parse_buffer) should be emitted. */
223 /* 0: Have seen non-white-space on this line.
224 1: Only seen white space so far on this line.
225 2: Only seen white space so far in this file. */
226 char only_seen_white;
228 /* Nonzero means this file was included with a -imacros or -include
229 command line and should not be recorded as an include file. */
237 /* Buffer of -M output. */
240 /* Number of bytes allocated in above. */
241 int deps_allocated_size;
243 /* Number of bytes used. */
246 /* Number of bytes since the last newline. */
250 ~cpp_reader () { cpp_cleanup (this); }
254 #define CPP_FATAL_LIMIT 1000
255 /* True if we have seen a "fatal" error. */
256 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
258 #define CPP_BUF_PEEK(BUFFER) \
259 ((BUFFER)->cur < (BUFFER)->rlimit ? *(BUFFER)->cur : EOF)
260 #define CPP_BUF_GET(BUFFER) \
261 ((BUFFER)->cur < (BUFFER)->rlimit ? *(BUFFER)->cur++ : EOF)
262 #define CPP_FORWARD(BUFFER, N) ((BUFFER)->cur += (N))
264 /* Macros for manipulating the token_buffer. */
266 #define CPP_OUT_BUFFER(PFILE) ((PFILE)->token_buffer)
268 /* Number of characters currently in PFILE's output buffer. */
269 #define CPP_WRITTEN(PFILE) ((size_t)((PFILE)->limit - (PFILE)->token_buffer))
270 #define CPP_PWRITTEN(PFILE) ((PFILE)->limit)
272 /* Make sure PFILE->token_buffer has space for at least N more characters. */
273 #define CPP_RESERVE(PFILE, N) \
274 (CPP_WRITTEN (PFILE) + (size_t)(N) > (PFILE)->token_buffer_size \
275 && (cpp_grow_buffer (PFILE, N), 0))
277 /* Append string STR (of length N) to PFILE's output buffer.
278 Assume there is enough space. */
279 #define CPP_PUTS_Q(PFILE, STR, N) \
280 (bcopy (STR, (PFILE)->limit, (N)), (PFILE)->limit += (N))
281 /* Append string STR (of length N) to PFILE's output buffer. Make space. */
282 #define CPP_PUTS(PFILE, STR, N) CPP_RESERVE(PFILE, N), CPP_PUTS_Q(PFILE, STR,N)
283 /* Append character CH to PFILE's output buffer. Assume sufficient space. */
284 #define CPP_PUTC_Q(PFILE, CH) (*(PFILE)->limit++ = (CH))
285 /* Append character CH to PFILE's output buffer. Make space if need be. */
286 #define CPP_PUTC(PFILE, CH) (CPP_RESERVE (PFILE, 1), CPP_PUTC_Q (PFILE, CH))
287 /* Make sure PFILE->limit is followed by '\0'. */
288 #define CPP_NUL_TERMINATE_Q(PFILE) (*(PFILE)->limit = 0)
289 #define CPP_NUL_TERMINATE(PFILE) (CPP_RESERVE(PFILE, 1), *(PFILE)->limit = 0)
290 #define CPP_ADJUST_WRITTEN(PFILE,DELTA) ((PFILE)->limit += (DELTA))
291 #define CPP_SET_WRITTEN(PFILE,N) ((PFILE)->limit = (PFILE)->token_buffer + (N))
293 #define CPP_OPTIONS(PFILE) ((PFILE)->opts)
295 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
296 #define CPP_PREV_BUFFER(BUFFER) ((BUFFER)->prev)
297 /* The bottom of the buffer stack. */
298 #define CPP_NULL_BUFFER(PFILE) NULL
300 /* Pointed to by cpp_reader.opts. */
304 /* Name of output file, for error messages. */
307 struct file_name_map_list *map_list;
309 /* Non-0 means -v, so print the full set of include dirs. */
312 /* Nonzero means use extra default include directories for C++. */
316 /* Nonzero means handle cplusplus style comments */
318 char cplusplus_comments;
320 /* Nonzero means handle #import, for objective C. */
324 /* Nonzero means this is an assembly file, and allow
325 unknown directives, which could be comments. */
329 /* Nonzero means turn NOTREACHED into #pragma NOTREACHED etc */
333 /* Nonzero means handle CHILL comment syntax
334 and output CHILL string delimiter for __DATE___ etc. */
338 /* Nonzero means copy comments into the output file. */
340 char put_out_comments;
342 /* Nonzero means process the ANSI trigraph sequences. */
346 /* Nonzero means print the names of included files rather than
347 the preprocessed output. 1 means just the #include "...",
348 2 means #include <...> as well. */
352 /* Nonzero if missing .h files in -M output are assumed to be generated
353 files and not errors. */
355 char print_deps_missing_files;
357 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
358 char print_deps_append;
360 /* Nonzero means print names of header files (-H). */
362 char print_include_names;
364 /* Nonzero means try to make failure to fit ANSI C an error. */
366 char pedantic_errors;
368 /* Nonzero means don't print warning messages. -w. */
370 char inhibit_warnings;
372 /* Nonzero means warn if slash-star appears in a comment. */
376 /* Nonzero means warn if there are any trigraphs. */
380 /* Nonzero means warn if #import is used. */
384 /* Nonzero means warn if a macro argument is (or would be)
385 stringified with -traditional. */
389 /* Nonzero means turn warnings into errors. */
391 char warnings_are_errors;
393 /* Nonzero causes output not to be done,
394 but directives such as #define that have side effects
399 /* Nonzero means we should look for header.gcc files that remap file
403 /* Nonzero means don't output line number information. */
405 char no_line_commands;
407 /* Nonzero means output the text in failing conditionals,
408 inside #failed ... #endfailed. */
410 char output_conditionals;
412 /* Nonzero means -I- has been seen,
413 so don't look for #include "foo" the source-file directory. */
416 /* Zero means dollar signs are punctuation.
417 This used to be needed for conformance to the C Standard,
418 before the C Standard was corrected. */
419 char dollars_in_ident;
421 /* Nonzero means try to imitate old fashioned non-ANSI preprocessor. */
424 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
427 /* Nonzero for the 1989 C Standard, including corrigenda and amendments. */
430 /* Nonzero for the 199x C Standard, including corrigenda and amendments. */
433 /* Nonzero means give all the error messages the ANSI standard requires. */
436 char done_initializing;
438 /* Search paths for include files. system_include, after_include are
439 only used during option parsing. */
440 struct file_name_list *quote_include; /* First dir to search for "file" */
441 struct file_name_list *bracket_include;/* First dir to search for <file> */
442 struct file_name_list *system_include; /* First dir with system headers */
443 struct file_name_list *after_include; /* Headers to search after system */
445 /* Directory prefix that should replace `/usr' in the standard
446 include file directories. */
447 char *include_prefix;
449 char inhibit_predefs;
450 char no_standard_includes;
451 char no_standard_cplusplus_includes;
453 /* dump_only means inhibit output of the preprocessed text
454 and instead output the definitions of all user-defined
455 macros in a form suitable for use as input to cccp.
456 dump_names means pass #define and the macro name through to output.
457 dump_definitions means pass the whole definition (plus #define) through
460 enum {dump_none = 0, dump_only, dump_names, dump_definitions}
463 /* Nonzero means pass all #define and #undef directives which we actually
464 process through to the output stream. This feature is used primarily
465 to allow cc1 to record the #defines and #undefs for the sake of
466 debuggers which understand about preprocessor macros, but it may
467 also be useful with -E to figure out how symbols are defined, and
468 where they are defined. */
471 /* Nonzero means pass #include lines through to the output,
472 even if they are ifdefed out. */
475 /* Pending -D, -U and -A options, in reverse order. */
476 struct cpp_pending *pending;
478 /* File name which deps are being written to.
479 This is 0 if deps are being written to stdout. */
482 /* Target-name to write with the dependency information. */
486 #define CPP_TRADITIONAL(PFILE) (CPP_OPTIONS(PFILE)-> traditional)
487 #define CPP_WARN_UNDEF(PFILE) (CPP_OPTIONS(PFILE)->warn_undef)
488 #define CPP_C89(PFILE) (CPP_OPTIONS(PFILE)->c89)
489 #define CPP_PEDANTIC(PFILE) (CPP_OPTIONS (PFILE)->pedantic)
490 #define CPP_PRINT_DEPS(PFILE) (CPP_OPTIONS (PFILE)->print_deps)
492 /* List of directories to look for include files in. */
493 struct file_name_list
495 struct file_name_list *next;
496 struct file_name_list *alloc; /* for the cache of
497 current directory entries */
500 /* We use these to tell if the directory mentioned here is a duplicate
501 of an earlier directory on the search path. */
504 /* If the following is nonzero, it is a C-language system include
507 /* Mapping of file names for this directory.
508 Only used on MS-DOS and related platforms. */
509 struct file_name_map *name_map;
511 #define ABSOLUTE_PATH ((struct file_name_list *)-1)
513 /* This structure is used for the table of all includes. It is
514 indexed by the `short name' (the name as it appeared in the
515 #include statement) which is stored in *nshort. */
518 struct include_hash *next;
519 /* Next file with the same short name but a
520 different (partial) pathname). */
521 struct include_hash *next_this_file;
523 /* Location of the file in the include search path.
524 Used for include_next */
525 struct file_name_list *foundhere;
526 char *name; /* (partial) pathname of file */
527 char *nshort; /* name of file as referenced in #include */
528 char *control_macro; /* macro, if any, preventing reinclusion - see
529 redundant_include_p */
530 char *buf, *limit; /* for file content cache, not yet implemented */
533 /* Name under which this program was invoked. */
535 extern char *progname;
537 /* The structure of a node in the hash table. The hash table
538 has entries for all tokens defined by #define commands (type T_MACRO),
539 plus some special tokens like __LINE__ (these each have their own
540 type, and the appropriate code is run when that type of node is seen.
541 It does not contain control words like "#define", which are recognized
542 by a separate piece of code. */
544 /* different flavors of hash nodes --- also used in keyword table */
546 T_DEFINE = 1, /* the `#define' keyword */
547 T_INCLUDE, /* the `#include' keyword */
548 T_INCLUDE_NEXT, /* the `#include_next' keyword */
549 T_IMPORT, /* the `#import' keyword */
550 T_IFDEF, /* the `#ifdef' keyword */
551 T_IFNDEF, /* the `#ifndef' keyword */
552 T_IF, /* the `#if' keyword */
553 T_ELSE, /* `#else' */
554 T_PRAGMA, /* `#pragma' */
555 T_ELIF, /* `#elif' */
556 T_UNDEF, /* `#undef' */
557 T_LINE, /* `#line' */
558 T_ERROR, /* `#error' */
559 T_WARNING, /* `#warning' */
560 T_ENDIF, /* `#endif' */
561 T_SCCS, /* `#sccs', used on system V. */
562 T_IDENT, /* `#ident', used on system V. */
563 T_ASSERT, /* `#assert', taken from system V. */
564 T_UNASSERT, /* `#unassert', taken from system V. */
565 T_SPECLINE, /* special symbol `__LINE__' */
566 T_DATE, /* `__DATE__' */
567 T_FILE, /* `__FILE__' */
568 T_BASE_FILE, /* `__BASE_FILE__' */
569 T_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
570 T_VERSION, /* `__VERSION__' */
571 T_TIME, /* `__TIME__' */
572 T_STDC, /* `__STDC__' */
573 T_CONST, /* Constant string, used by `__SIZE_TYPE__' etc */
574 T_MACRO, /* macro defined by `#define' */
575 T_DISABLED, /* macro temporarily turned off for rescan */
576 T_PCSTRING, /* precompiled string (hashval is KEYDEF *) */
577 T_UNUSED /* Used for something not defined. */
580 /* Structure returned by create_definition */
581 typedef struct macrodef MACRODEF;
584 struct definition *defn;
585 unsigned char *symnam;
589 /* Structure allocated for every #define. For a simple replacement
592 nargs = -1, the `pattern' list is null, and the expansion is just
593 the replacement text. Nargs = 0 means a functionlike macro with no args,
595 #define getchar() getc (stdin) .
596 When there are args, the expansion is the replacement text with the
597 args squashed out, and the reflist is a list describing how to
598 build the output from the input: e.g., "3 chars, then the 1st arg,
599 then 9 chars, then the 3rd arg, then 0 chars, then the 2nd arg".
600 The chars here come from the expansion. Whatever is left of the
601 expansion after the last arg-occurrence is copied after that arg.
602 Note that the reflist can be arbitrarily long---
603 its length depends on the number of times the arguments appear in
604 the replacement text, not how many args there are. Example:
605 #define f(x) x+x+x+x+x+x+x would have replacement text "++++++" and
607 { (0, 1), (1, 1), (1, 1), ..., (1, 1), NULL }
608 where (x, y) means (nchars, argno). */
610 typedef struct definition DEFINITION;
613 int length; /* length of expansion string */
614 int predefined; /* True if the macro was builtin or */
615 /* came from the command line */
616 unsigned char *expansion;
617 int line; /* Line number of definition */
618 char *file; /* File of definition */
619 char rest_args; /* Nonzero if last arg. absorbs the rest */
621 struct reflist *next;
622 char stringify; /* nonzero if this arg was preceded by a
624 char raw_before; /* Nonzero if a ## operator before arg. */
625 char raw_after; /* Nonzero if a ## operator after arg. */
626 char rest_args; /* Nonzero if this arg. absorbs the rest */
627 int nchars; /* Number of literal chars to copy before
628 this arg occurrence. */
629 int argno; /* Number of arg to substitute (origin-0) */
632 /* Names of macro args, concatenated in reverse order
633 with comma-space between them.
634 The only use of this is that we warn on redefinition
635 if this differs between the old and new definitions. */
636 unsigned char *argnames;
640 /* These tables are not really `const', but they are only modified at
641 initialization time, in a separate translation unit from the rest
642 of the library. We let the rest of the library think they are `const'
643 to get better code and some additional sanity checks. */
645 #define FAKE_CONST const
647 extern FAKE_CONST unsigned char is_idstart[256];
648 extern FAKE_CONST unsigned char is_idchar[256];
649 extern FAKE_CONST unsigned char is_hor_space[256];
650 extern FAKE_CONST unsigned char is_space[256];
651 extern FAKE_CONST unsigned char trigraph_table[256];
654 /* Stack of conditionals currently in progress
655 (including both successful and failing conditionals). */
658 struct if_stack *next; /* for chaining to the next stack frame */
659 char *fname; /* copied from input when frame is made */
660 int lineno; /* similarly */
661 int if_succeeded; /* true if a leg of this if-group
662 has been passed through rescan */
663 unsigned char *control_macro; /* For #ifndef at start of file,
664 this is the macro name tested. */
665 enum node_type type; /* type of last directive seen in this group */
667 typedef struct if_stack IF_STACK_FRAME;
669 /* Find the largest host integer type and set its size and type.
670 Watch out: on some crazy hosts `long' is shorter than `int'. */
672 #ifndef HOST_WIDE_INT
673 #include "machmode.h"
676 extern void cpp_buf_line_and_col PARAMS((cpp_buffer *, long *, long *));
677 extern cpp_buffer* cpp_file_buffer PARAMS((cpp_reader *));
678 extern void cpp_define PARAMS ((cpp_reader *, unsigned char *));
679 extern void cpp_assert PARAMS ((cpp_reader *, unsigned char *));
680 extern void cpp_undef 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_WIDE_INT cpp_parse_escape PARAMS ((cpp_reader *, char **, HOST_WIDE_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 append_include_chain PROTO ((cpp_reader *,
739 struct file_name_list **,
741 extern void merge_include_chains PROTO ((struct cpp_options *));
742 extern int find_include_file PROTO ((cpp_reader *, char *,
743 struct file_name_list *,
744 struct include_hash **,
746 extern int finclude PROTO ((cpp_reader *, int,
747 struct include_hash *));
748 extern void deps_output PROTO ((cpp_reader *, char *, int));
749 extern struct include_hash *include_hash PROTO ((cpp_reader *, char *, int));
751 #ifndef INCLUDE_LEN_FUDGE
752 #define INCLUDE_LEN_FUDGE 0
759 #endif /* __GCC_CPPLIB__ */