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 file_name_map_list;
150 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
151 efficiency, and partly to limit runaway recursion. */
152 #define CPP_STACK_MAX 200
154 /* A cpp_reader encapsulates the "state" of a pre-processor run.
155 Applying cpp_get_token repeatedly yields a stream of pre-processor
156 tokens. Usually, there is only one cpp_reader object active. */
160 parse_underflow_t get_token;
164 /* A buffer used for both for cpp_get_token's output, and also internally. */
165 unsigned char *token_buffer;
166 /* Allocated size of token_buffer. CPP_RESERVE allocates space. */
167 unsigned int token_buffer_size;
168 /* End of the written part of token_buffer. */
169 unsigned char *limit;
171 /* Error counter for exit code */
174 /* Line where a newline was first seen in a string constant. */
175 int multiline_string_line;
177 /* Current depth in #include directives that use <...>. */
178 int system_include_depth;
180 /* Current depth of buffer stack. */
181 int buffer_stack_depth;
183 /* Hash table of macros and assertions. See cpphash.c */
184 #define HASHSIZE 1403
185 struct hashnode **hashtab;
187 /* Hash table of other included files. See cppfiles.c */
188 #define ALL_INCLUDE_HASHSIZE 71
189 struct include_hash *all_include_files[ALL_INCLUDE_HASHSIZE];
191 /* Chain of `actual directory' file_name_list entries,
193 struct file_name_list *actual_dirs;
195 /* Current maximum length of directory names in the search path
196 for include files. (Altered as we get more of them.) */
197 unsigned int max_include_len;
199 struct if_stack *if_stack;
201 /* Nonzero means we are inside an IF during a -pcp run. In this mode
202 macro expansion is done, and preconditions are output for all macro
203 uses requiring them. */
206 /* Nonzero means we have printed (while error reporting) a list of
207 containing files that matches the current status. */
208 char input_stack_listing_current;
210 /* If non-zero, macros are not expanded. */
211 char no_macro_expand;
213 /* Print column number in error messages. */
216 /* We're printed a warning recommending against using #import. */
219 /* If true, character between '<' and '>' are a single (string) token. */
220 char parsing_include_directive;
222 /* True if escape sequences (as described for has_escapes in
223 parse_buffer) should be emitted. */
226 /* 0: Have seen non-white-space on this line.
227 1: Only seen white space so far on this line.
228 2: Only seen white space so far in this file. */
229 char only_seen_white;
231 /* Nonzero means this file was included with a -imacros or -include
232 command line and should not be recorded as an include file. */
240 /* Buffer of -M output. */
243 /* Number of bytes allocated in above. */
244 int deps_allocated_size;
246 /* Number of bytes used. */
249 /* Number of bytes since the last newline. */
253 #define CPP_FATAL_LIMIT 1000
254 /* True if we have seen a "fatal" error. */
255 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
257 #define CPP_BUF_PEEK(BUFFER) \
258 ((BUFFER)->cur < (BUFFER)->rlimit ? *(BUFFER)->cur : EOF)
259 #define CPP_BUF_GET(BUFFER) \
260 ((BUFFER)->cur < (BUFFER)->rlimit ? *(BUFFER)->cur++ : EOF)
261 #define CPP_FORWARD(BUFFER, N) ((BUFFER)->cur += (N))
263 /* Macros for manipulating the token_buffer. */
265 #define CPP_OUT_BUFFER(PFILE) ((PFILE)->token_buffer)
267 /* Number of characters currently in PFILE's output buffer. */
268 #define CPP_WRITTEN(PFILE) ((size_t)((PFILE)->limit - (PFILE)->token_buffer))
269 #define CPP_PWRITTEN(PFILE) ((PFILE)->limit)
271 /* Make sure PFILE->token_buffer has space for at least N more characters. */
272 #define CPP_RESERVE(PFILE, N) \
273 (CPP_WRITTEN (PFILE) + (size_t)(N) > (PFILE)->token_buffer_size \
274 && (cpp_grow_buffer (PFILE, N), 0))
276 /* Append string STR (of length N) to PFILE's output buffer.
277 Assume there is enough space. */
278 #define CPP_PUTS_Q(PFILE, STR, N) \
279 (bcopy (STR, (PFILE)->limit, (N)), (PFILE)->limit += (N))
280 /* Append string STR (of length N) to PFILE's output buffer. Make space. */
281 #define CPP_PUTS(PFILE, STR, N) CPP_RESERVE(PFILE, N), CPP_PUTS_Q(PFILE, STR,N)
282 /* Append character CH to PFILE's output buffer. Assume sufficient space. */
283 #define CPP_PUTC_Q(PFILE, CH) (*(PFILE)->limit++ = (CH))
284 /* Append character CH to PFILE's output buffer. Make space if need be. */
285 #define CPP_PUTC(PFILE, CH) (CPP_RESERVE (PFILE, 1), CPP_PUTC_Q (PFILE, CH))
286 /* Make sure PFILE->limit is followed by '\0'. */
287 #define CPP_NUL_TERMINATE_Q(PFILE) (*(PFILE)->limit = 0)
288 #define CPP_NUL_TERMINATE(PFILE) (CPP_RESERVE(PFILE, 1), *(PFILE)->limit = 0)
289 #define CPP_ADJUST_WRITTEN(PFILE,DELTA) ((PFILE)->limit += (DELTA))
290 #define CPP_SET_WRITTEN(PFILE,N) ((PFILE)->limit = (PFILE)->token_buffer + (N))
292 #define CPP_OPTIONS(PFILE) ((PFILE)->opts)
294 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
295 #define CPP_PREV_BUFFER(BUFFER) ((BUFFER)->prev)
296 /* The bottom of the buffer stack. */
297 #define CPP_NULL_BUFFER(PFILE) NULL
299 /* The `pending' structure accumulates all the options that are not
300 actually processed until we hit cpp_start_read. It consists of
301 several lists, one for each type of option. We keep both head and
302 tail pointers for quick insertion. */
305 struct pending_option *define_head, *define_tail;
306 struct pending_option *assert_head, *assert_tail;
308 struct file_name_list *quote_head, *quote_tail;
309 struct file_name_list *brack_head, *brack_tail;
310 struct file_name_list *systm_head, *systm_tail;
311 struct file_name_list *after_head, *after_tail;
313 struct pending_option *imacros_head, *imacros_tail;
314 struct pending_option *include_head, *include_tail;
317 /* Pointed to by cpp_reader.opts. */
321 /* Name of output file, for error messages. */
324 struct file_name_map_list *map_list;
326 /* Non-0 means -v, so print the full set of include dirs. */
329 /* Nonzero means use extra default include directories for C++. */
333 /* Nonzero means handle cplusplus style comments */
335 char cplusplus_comments;
337 /* Nonzero means handle #import, for objective C. */
341 /* Nonzero means this is an assembly file, and allow
342 unknown directives, which could be comments. */
346 /* Nonzero means turn NOTREACHED into #pragma NOTREACHED etc */
350 /* Nonzero means handle CHILL comment syntax
351 and output CHILL string delimiter for __DATE___ etc. */
355 /* Nonzero means copy comments into the output file. */
357 char put_out_comments;
359 /* Nonzero means process the ANSI trigraph sequences. */
363 /* Nonzero means print the names of included files rather than
364 the preprocessed output. 1 means just the #include "...",
365 2 means #include <...> as well. */
369 /* Nonzero if missing .h files in -M output are assumed to be generated
370 files and not errors. */
372 char print_deps_missing_files;
374 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
375 char print_deps_append;
377 /* Nonzero means print names of header files (-H). */
379 char print_include_names;
381 /* Nonzero means try to make failure to fit ANSI C an error. */
383 char pedantic_errors;
385 /* Nonzero means don't print warning messages. -w. */
387 char inhibit_warnings;
389 /* Nonzero means warn if slash-star appears in a comment. */
393 /* Nonzero means warn if there are any trigraphs. */
397 /* Nonzero means warn if #import is used. */
401 /* Nonzero means warn if a macro argument is (or would be)
402 stringified with -traditional. */
406 /* Nonzero means turn warnings into errors. */
408 char warnings_are_errors;
410 /* Nonzero causes output not to be done,
411 but directives such as #define that have side effects
416 /* Nonzero means we should look for header.gcc files that remap file
420 /* Nonzero means don't output line number information. */
422 char no_line_commands;
424 /* Nonzero means output the text in failing conditionals,
425 inside #failed ... #endfailed. */
427 char output_conditionals;
429 /* Nonzero means -I- has been seen,
430 so don't look for #include "foo" the source-file directory. */
433 /* Zero means dollar signs are punctuation.
434 This used to be needed for conformance to the C Standard,
435 before the C Standard was corrected. */
436 char dollars_in_ident;
438 /* Nonzero means try to imitate old fashioned non-ANSI preprocessor. */
441 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
444 /* Nonzero for the 1989 C Standard, including corrigenda and amendments. */
447 /* Nonzero for the 199x C Standard, including corrigenda and amendments. */
450 /* Nonzero means give all the error messages the ANSI standard requires. */
453 char done_initializing;
455 /* Search paths for include files. */
456 struct file_name_list *quote_include; /* First dir to search for "file" */
457 struct file_name_list *bracket_include;/* First dir to search for <file> */
459 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
460 in the standard include file directories. */
461 char *include_prefix;
462 int include_prefix_len;
464 char inhibit_predefs;
465 char no_standard_includes;
466 char no_standard_cplusplus_includes;
468 /* dump_only means inhibit output of the preprocessed text
469 and instead output the definitions of all user-defined
470 macros in a form suitable for use as input to cccp.
471 dump_names means pass #define and the macro name through to output.
472 dump_definitions means pass the whole definition (plus #define) through
475 enum {dump_none = 0, dump_only, dump_names, dump_definitions}
478 /* Nonzero means pass all #define and #undef directives which we actually
479 process through to the output stream. This feature is used primarily
480 to allow cc1 to record the #defines and #undefs for the sake of
481 debuggers which understand about preprocessor macros, but it may
482 also be useful with -E to figure out how symbols are defined, and
483 where they are defined. */
486 /* Nonzero means pass #include lines through to the output,
487 even if they are ifdefed out. */
490 /* Pending options - -D, -U, -A, -I, -ixxx. */
491 struct cpp_pending *pending;
493 /* File name which deps are being written to.
494 This is 0 if deps are being written to stdout. */
497 /* Target-name to write with the dependency information. */
501 #define CPP_TRADITIONAL(PFILE) (CPP_OPTIONS(PFILE)-> traditional)
502 #define CPP_WARN_UNDEF(PFILE) (CPP_OPTIONS(PFILE)->warn_undef)
503 #define CPP_C89(PFILE) (CPP_OPTIONS(PFILE)->c89)
504 #define CPP_PEDANTIC(PFILE) (CPP_OPTIONS (PFILE)->pedantic)
505 #define CPP_PRINT_DEPS(PFILE) (CPP_OPTIONS (PFILE)->print_deps)
507 /* List of directories to look for include files in. */
508 struct file_name_list
510 struct file_name_list *next;
511 struct file_name_list *alloc; /* for the cache of
512 current directory entries */
515 /* We use these to tell if the directory mentioned here is a duplicate
516 of an earlier directory on the search path. */
519 /* If the following is nonzero, it is a C-language system include
522 /* Mapping of file names for this directory.
523 Only used on MS-DOS and related platforms. */
524 struct file_name_map *name_map;
526 #define ABSOLUTE_PATH ((struct file_name_list *)-1)
528 /* This structure is used for the table of all includes. It is
529 indexed by the `short name' (the name as it appeared in the
530 #include statement) which is stored in *nshort. */
533 struct include_hash *next;
534 /* Next file with the same short name but a
535 different (partial) pathname). */
536 struct include_hash *next_this_file;
538 /* Location of the file in the include search path.
539 Used for include_next */
540 struct file_name_list *foundhere;
541 char *name; /* (partial) pathname of file */
542 char *nshort; /* name of file as referenced in #include */
543 char *control_macro; /* macro, if any, preventing reinclusion - see
544 redundant_include_p */
545 char *buf, *limit; /* for file content cache, not yet implemented */
548 /* Name under which this program was invoked. */
550 extern char *progname;
552 /* The structure of a node in the hash table. The hash table
553 has entries for all tokens defined by #define commands (type T_MACRO),
554 plus some special tokens like __LINE__ (these each have their own
555 type, and the appropriate code is run when that type of node is seen.
556 It does not contain control words like "#define", which are recognized
557 by a separate piece of code. */
559 /* different flavors of hash nodes --- also used in keyword table */
561 T_DEFINE = 1, /* the `#define' keyword */
562 T_INCLUDE, /* the `#include' keyword */
563 T_INCLUDE_NEXT, /* the `#include_next' keyword */
564 T_IMPORT, /* the `#import' keyword */
565 T_IFDEF, /* the `#ifdef' keyword */
566 T_IFNDEF, /* the `#ifndef' keyword */
567 T_IF, /* the `#if' keyword */
568 T_ELSE, /* `#else' */
569 T_PRAGMA, /* `#pragma' */
570 T_ELIF, /* `#elif' */
571 T_UNDEF, /* `#undef' */
572 T_LINE, /* `#line' */
573 T_ERROR, /* `#error' */
574 T_WARNING, /* `#warning' */
575 T_ENDIF, /* `#endif' */
576 T_SCCS, /* `#sccs', used on system V. */
577 T_IDENT, /* `#ident', used on system V. */
578 T_ASSERT, /* `#assert', taken from system V. */
579 T_UNASSERT, /* `#unassert', taken from system V. */
580 T_SPECLINE, /* special symbol `__LINE__' */
581 T_DATE, /* `__DATE__' */
582 T_FILE, /* `__FILE__' */
583 T_BASE_FILE, /* `__BASE_FILE__' */
584 T_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
585 T_VERSION, /* `__VERSION__' */
586 T_TIME, /* `__TIME__' */
587 T_STDC, /* `__STDC__' */
588 T_CONST, /* Constant string, used by `__SIZE_TYPE__' etc */
589 T_MACRO, /* macro defined by `#define' */
590 T_DISABLED, /* macro temporarily turned off for rescan */
591 T_PCSTRING, /* precompiled string (hashval is KEYDEF *) */
592 T_UNUSED /* Used for something not defined. */
595 /* Structure returned by create_definition */
596 typedef struct macrodef MACRODEF;
599 struct definition *defn;
600 unsigned char *symnam;
604 /* Structure allocated for every #define. For a simple replacement
607 nargs = -1, the `pattern' list is null, and the expansion is just
608 the replacement text. Nargs = 0 means a functionlike macro with no args,
610 #define getchar() getc (stdin) .
611 When there are args, the expansion is the replacement text with the
612 args squashed out, and the reflist is a list describing how to
613 build the output from the input: e.g., "3 chars, then the 1st arg,
614 then 9 chars, then the 3rd arg, then 0 chars, then the 2nd arg".
615 The chars here come from the expansion. Whatever is left of the
616 expansion after the last arg-occurrence is copied after that arg.
617 Note that the reflist can be arbitrarily long---
618 its length depends on the number of times the arguments appear in
619 the replacement text, not how many args there are. Example:
620 #define f(x) x+x+x+x+x+x+x would have replacement text "++++++" and
622 { (0, 1), (1, 1), (1, 1), ..., (1, 1), NULL }
623 where (x, y) means (nchars, argno). */
625 typedef struct definition DEFINITION;
628 int length; /* length of expansion string */
629 int predefined; /* True if the macro was builtin or */
630 /* came from the command line */
631 unsigned char *expansion;
632 int line; /* Line number of definition */
633 char *file; /* File of definition */
634 char rest_args; /* Nonzero if last arg. absorbs the rest */
636 struct reflist *next;
637 char stringify; /* nonzero if this arg was preceded by a
639 char raw_before; /* Nonzero if a ## operator before arg. */
640 char raw_after; /* Nonzero if a ## operator after arg. */
641 char rest_args; /* Nonzero if this arg. absorbs the rest */
642 int nchars; /* Number of literal chars to copy before
643 this arg occurrence. */
644 int argno; /* Number of arg to substitute (origin-0) */
647 /* Names of macro args, concatenated in reverse order
648 with comma-space between them.
649 The only use of this is that we warn on redefinition
650 if this differs between the old and new definitions. */
651 unsigned char *argnames;
655 /* These tables are not really `const', but they are only modified at
656 initialization time, in a separate translation unit from the rest
657 of the library. We let the rest of the library think they are `const'
658 to get better code and some additional sanity checks. */
660 #define FAKE_CONST const
662 extern FAKE_CONST unsigned char is_idstart[256];
663 extern FAKE_CONST unsigned char is_idchar[256];
664 extern FAKE_CONST unsigned char is_hor_space[256];
665 extern FAKE_CONST unsigned char is_space[256];
666 extern FAKE_CONST unsigned char trigraph_table[256];
669 /* Stack of conditionals currently in progress
670 (including both successful and failing conditionals). */
673 struct if_stack *next; /* for chaining to the next stack frame */
674 char *fname; /* copied from input when frame is made */
675 int lineno; /* similarly */
676 int if_succeeded; /* true if a leg of this if-group
677 has been passed through rescan */
678 unsigned char *control_macro; /* For #ifndef at start of file,
679 this is the macro name tested. */
680 enum node_type type; /* type of last directive seen in this group */
682 typedef struct if_stack IF_STACK_FRAME;
684 extern void cpp_buf_line_and_col PARAMS((cpp_buffer *, long *, long *));
685 extern cpp_buffer* cpp_file_buffer PARAMS((cpp_reader *));
686 extern void cpp_define PARAMS ((cpp_reader *, unsigned char *));
687 extern void cpp_assert PARAMS ((cpp_reader *, unsigned char *));
688 extern void cpp_undef PARAMS ((cpp_reader *, unsigned char *));
689 extern void cpp_unassert PARAMS ((cpp_reader *, unsigned char *));
691 extern void cpp_error PVPROTO ((cpp_reader *, const char *, ...))
693 extern void cpp_warning PVPROTO ((cpp_reader *, const char *, ...))
695 extern void cpp_pedwarn PVPROTO ((cpp_reader *, const char *, ...))
697 extern void cpp_error_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
699 extern void cpp_warning_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
701 extern void cpp_pedwarn_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
703 extern void cpp_pedwarn_with_file_and_line PVPROTO ((cpp_reader *, char *, int, const char *, ...))
705 extern void cpp_message_from_errno PROTO ((cpp_reader *, int, const char *));
706 extern void cpp_error_from_errno PROTO ((cpp_reader *, const char *));
707 extern void cpp_perror_with_name PROTO ((cpp_reader *, const char *));
708 extern void v_cpp_message PROTO ((cpp_reader *, int, const char *, va_list));
710 extern void cpp_grow_buffer PARAMS ((cpp_reader *, long));
711 extern HOST_WIDEST_INT cpp_parse_escape PARAMS ((cpp_reader *, char **, HOST_WIDEST_INT));
712 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
713 unsigned char *, long));
714 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
716 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *, const unsigned char *,
718 extern void cpp_reader_init PARAMS ((cpp_reader *));
719 extern void cpp_options_init PARAMS ((cpp_options *));
720 extern int cpp_start_read PARAMS ((cpp_reader *, char *));
721 extern int cpp_read_check_assertion PARAMS ((cpp_reader *));
722 extern int scan_decls PARAMS ((cpp_reader *, int, char **));
723 extern void skip_rest_of_line PARAMS ((cpp_reader *));
724 extern void cpp_finish PARAMS ((cpp_reader *));
726 extern void quote_string PARAMS ((cpp_reader *, const char *));
727 extern void cpp_expand_to_buffer PARAMS ((cpp_reader *, U_CHAR *, int));
728 extern void cpp_scan_buffer PARAMS ((cpp_reader *));
729 extern int check_macro_name PARAMS ((cpp_reader *, U_CHAR *, int));
731 /* Last arg to output_line_command. */
732 enum file_change_code {same_file, enter_file, leave_file};
733 extern void output_line_command PARAMS ((cpp_reader *, int,
734 enum file_change_code));
736 /* From cpperror.c */
737 extern void cpp_fatal PVPROTO ((cpp_reader *, const char *, ...))
739 extern void cpp_message PVPROTO ((cpp_reader *, int, const char *, ...))
741 extern void cpp_pfatal_with_name PROTO ((cpp_reader *, const char *));
742 extern void cpp_file_line_for_message PROTO ((cpp_reader *, char *, int, int));
743 extern void cpp_print_containing_files PROTO ((cpp_reader *));
744 extern void cpp_notice PVPROTO ((const char *msgid, ...)) ATTRIBUTE_PRINTF_1;
747 extern void simplify_pathname PROTO ((char *));
748 extern void merge_include_chains PROTO ((struct cpp_options *));
749 extern int find_include_file PROTO ((cpp_reader *, char *,
750 struct file_name_list *,
751 struct include_hash **,
753 extern int finclude PROTO ((cpp_reader *, int,
754 struct include_hash *));
755 extern void deps_output PROTO ((cpp_reader *, char *, int));
756 extern struct include_hash *include_hash PROTO ((cpp_reader *, char *, int));
758 #ifndef INCLUDE_LEN_FUDGE
759 #define INCLUDE_LEN_FUDGE 0
766 #endif /* __GCC_CPPLIB__ */