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 two kinds:
128 "\r-" means following identifier should not be macro-expanded.
129 "\r " means a token-separator. This turns into " " in final output
130 if not stringizing and needed to separate tokens; otherwise nothing.
131 Any other two-character sequence beginning with \r is an error.
133 If this is NOT set, then \r is a one-character escape meaning backslash
134 newline. This is guaranteed not to occur in the middle of a token.
135 The two interpretations of \r do not conflict, because the two-character
136 escapes are used only in macro buffers, and backslash-newline is removed
137 from macro expansion text in collect_expansion and/or macarg. */
141 struct file_name_map_list;
143 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
144 efficiency, and partly to limit runaway recursion. */
145 #define CPP_STACK_MAX 200
147 /* A cpp_reader encapsulates the "state" of a pre-processor run.
148 Applying cpp_get_token repeatedly yields a stream of pre-processor
149 tokens. Usually, there is only one cpp_reader object active. */
153 parse_underflow_t get_token;
157 /* A buffer used for both for cpp_get_token's output, and also internally. */
158 unsigned char *token_buffer;
159 /* Allocated size of token_buffer. CPP_RESERVE allocates space. */
160 unsigned int token_buffer_size;
161 /* End of the written part of token_buffer. */
162 unsigned char *limit;
164 /* Error counter for exit code */
167 /* Line where a newline was first seen in a string constant. */
168 int multiline_string_line;
170 /* Current depth in #include directives that use <...>. */
171 int system_include_depth;
173 /* Current depth of buffer stack. */
174 int buffer_stack_depth;
176 /* Hash table of macros and assertions. See cpphash.c */
177 #define HASHSIZE 1403
178 struct hashnode **hashtab;
180 /* Hash table of other included files. See cppfiles.c */
181 #define ALL_INCLUDE_HASHSIZE 71
182 struct include_hash *all_include_files[ALL_INCLUDE_HASHSIZE];
184 /* Chain of `actual directory' file_name_list entries,
186 struct file_name_list *actual_dirs;
188 /* Current maximum length of directory names in the search path
189 for include files. (Altered as we get more of them.) */
190 unsigned int max_include_len;
192 struct if_stack *if_stack;
194 /* Nonzero means we are inside an IF during a -pcp run. In this mode
195 macro expansion is done, and preconditions are output for all macro
196 uses requiring them. */
199 /* Nonzero means we have printed (while error reporting) a list of
200 containing files that matches the current status. */
201 char input_stack_listing_current;
203 /* If non-zero, macros are not expanded. */
204 char no_macro_expand;
206 /* Print column number in error messages. */
209 /* We're printed a warning recommending against using #import. */
212 /* If true, character between '<' and '>' are a single (string) token. */
213 char parsing_include_directive;
215 /* True if escape sequences (as described for has_escapes in
216 parse_buffer) should be emitted. */
219 /* 0: Have seen non-white-space on this line.
220 1: Only seen white space so far on this line.
221 2: Only seen white space so far in this file. */
222 char only_seen_white;
224 /* Nonzero means this file was included with a -imacros or -include
225 command line and should not be recorded as an include file. */
233 /* Buffer of -M output. */
236 /* Number of bytes allocated in above. */
237 int deps_allocated_size;
239 /* Number of bytes used. */
242 /* Number of bytes since the last newline. */
245 /* A buffer and a table, used only by read_and_prescan (in cppfiles.c)
246 which are allocated once per cpp_reader object to keep them off the
247 stack and avoid setup costs. */
248 U_CHAR *input_buffer;
249 U_CHAR *input_speccase;
250 size_t input_buffer_len;
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 (memcpy ((PFILE)->limit, STR, (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 /* Advance the current line by one. */
293 #define CPP_BUMP_BUFFER_LINE(PBUF) ((PBUF)->lineno++,\
294 (PBUF)->line_base = (PBUF)->cur)
295 #define CPP_BUMP_LINE(PFILE) CPP_BUMP_BUFFER_LINE(CPP_BUFFER(PFILE))
297 #define CPP_OPTIONS(PFILE) ((PFILE)->opts)
298 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
299 #define CPP_PREV_BUFFER(BUFFER) ((BUFFER)->prev)
300 /* The bottom of the buffer stack. */
301 #define CPP_NULL_BUFFER(PFILE) NULL
303 /* The `pending' structure accumulates all the options that are not
304 actually processed until we hit cpp_start_read. It consists of
305 several lists, one for each type of option. We keep both head and
306 tail pointers for quick insertion. */
309 struct pending_option *define_head, *define_tail;
310 struct pending_option *assert_head, *assert_tail;
312 struct file_name_list *quote_head, *quote_tail;
313 struct file_name_list *brack_head, *brack_tail;
314 struct file_name_list *systm_head, *systm_tail;
315 struct file_name_list *after_head, *after_tail;
317 struct pending_option *imacros_head, *imacros_tail;
318 struct pending_option *include_head, *include_tail;
321 /* Pointed to by cpp_reader.opts. */
325 /* Name of output file, for error messages. */
328 struct file_name_map_list *map_list;
330 /* Non-0 means -v, so print the full set of include dirs. */
333 /* Nonzero means use extra default include directories for C++. */
337 /* Nonzero means handle cplusplus style comments */
339 char cplusplus_comments;
341 /* Nonzero means handle #import, for objective C. */
345 /* Nonzero means this is an assembly file, and allow
346 unknown directives, which could be comments. */
350 /* Nonzero means turn NOTREACHED into #pragma NOTREACHED etc */
354 /* Nonzero means handle CHILL comment syntax
355 and output CHILL string delimiter for __DATE___ etc. */
359 /* Nonzero means copy comments into the output file. */
361 char put_out_comments;
363 /* Nonzero means process the ANSI trigraph sequences. */
367 /* Nonzero means print the names of included files rather than
368 the preprocessed output. 1 means just the #include "...",
369 2 means #include <...> as well. */
373 /* Nonzero if missing .h files in -M output are assumed to be generated
374 files and not errors. */
376 char print_deps_missing_files;
378 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
379 char print_deps_append;
381 /* Nonzero means print names of header files (-H). */
383 char print_include_names;
385 /* Nonzero means try to make failure to fit ANSI C an error. */
387 char pedantic_errors;
389 /* Nonzero means don't print warning messages. -w. */
391 char inhibit_warnings;
393 /* Nonzero means warn if slash-star appears in a comment. */
397 /* Nonzero means warn if there are any trigraphs. */
401 /* Nonzero means warn if #import is used. */
405 /* Nonzero means warn if a macro argument is (or would be)
406 stringified with -traditional. */
410 /* Nonzero means turn warnings into errors. */
412 char warnings_are_errors;
414 /* Nonzero causes output not to be done,
415 but directives such as #define that have side effects
420 /* Nonzero means we should look for header.gcc files that remap file
424 /* Nonzero means don't output line number information. */
426 char no_line_commands;
428 /* Nonzero means output the text in failing conditionals,
429 inside #failed ... #endfailed. */
431 char output_conditionals;
433 /* Nonzero means -I- has been seen,
434 so don't look for #include "foo" the source-file directory. */
437 /* Zero means dollar signs are punctuation.
438 This used to be needed for conformance to the C Standard,
439 before the C Standard was corrected. */
440 char dollars_in_ident;
442 /* Nonzero means try to imitate old fashioned non-ANSI preprocessor. */
445 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
448 /* Nonzero for the 1989 C Standard, including corrigenda and amendments. */
451 /* Nonzero for the 199x C Standard, including corrigenda and amendments. */
454 /* Nonzero means give all the error messages the ANSI standard requires. */
457 char done_initializing;
459 /* Search paths for include files. */
460 struct file_name_list *quote_include; /* First dir to search for "file" */
461 struct file_name_list *bracket_include;/* First dir to search for <file> */
463 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
464 in the standard include file directories. */
465 char *include_prefix;
466 int include_prefix_len;
468 char no_standard_includes;
469 char no_standard_cplusplus_includes;
471 /* dump_only means inhibit output of the preprocessed text
472 and instead output the definitions of all user-defined
473 macros in a form suitable for use as input to cccp.
474 dump_names means pass #define and the macro name through to output.
475 dump_definitions means pass the whole definition (plus #define) through
478 enum {dump_none = 0, dump_only, dump_names, dump_definitions}
481 /* Nonzero means pass all #define and #undef directives which we actually
482 process through to the output stream. This feature is used primarily
483 to allow cc1 to record the #defines and #undefs for the sake of
484 debuggers which understand about preprocessor macros, but it may
485 also be useful with -E to figure out how symbols are defined, and
486 where they are defined. */
489 /* Nonzero means pass #include lines through to the output,
490 even if they are ifdefed out. */
493 /* Pending options - -D, -U, -A, -I, -ixxx. */
494 struct cpp_pending *pending;
496 /* File name which deps are being written to.
497 This is 0 if deps are being written to stdout. */
500 /* Target-name to write with the dependency information. */
504 #define CPP_TRADITIONAL(PFILE) (CPP_OPTIONS(PFILE)-> traditional)
505 #define CPP_WARN_UNDEF(PFILE) (CPP_OPTIONS(PFILE)->warn_undef)
506 #define CPP_C89(PFILE) (CPP_OPTIONS(PFILE)->c89)
507 #define CPP_PEDANTIC(PFILE) (CPP_OPTIONS (PFILE)->pedantic)
508 #define CPP_PRINT_DEPS(PFILE) (CPP_OPTIONS (PFILE)->print_deps)
510 /* List of directories to look for include files in. */
511 struct file_name_list
513 struct file_name_list *next;
514 struct file_name_list *alloc; /* for the cache of
515 current directory entries */
518 /* We use these to tell if the directory mentioned here is a duplicate
519 of an earlier directory on the search path. */
522 /* If the following is nonzero, it is a C-language system include
525 /* Mapping of file names for this directory.
526 Only used on MS-DOS and related platforms. */
527 struct file_name_map *name_map;
529 #define ABSOLUTE_PATH ((struct file_name_list *)-1)
531 /* This structure is used for the table of all includes. It is
532 indexed by the `short name' (the name as it appeared in the
533 #include statement) which is stored in *nshort. */
536 struct include_hash *next;
537 /* Next file with the same short name but a
538 different (partial) pathname). */
539 struct include_hash *next_this_file;
541 /* Location of the file in the include search path.
542 Used for include_next */
543 struct file_name_list *foundhere;
544 char *name; /* (partial) pathname of file */
545 char *nshort; /* name of file as referenced in #include */
546 char *control_macro; /* macro, if any, preventing reinclusion - see
547 redundant_include_p */
548 char *buf, *limit; /* for file content cache, not yet implemented */
551 /* Name under which this program was invoked. */
553 extern char *progname;
555 /* The structure of a node in the hash table. The hash table
556 has entries for all tokens defined by #define commands (type T_MACRO),
557 plus some special tokens like __LINE__ (these each have their own
558 type, and the appropriate code is run when that type of node is seen.
559 It does not contain control words like "#define", which are recognized
560 by a separate piece of code. */
562 /* different flavors of hash nodes --- also used in keyword table */
564 T_DEFINE = 1, /* the `#define' keyword */
565 T_INCLUDE, /* the `#include' keyword */
566 T_INCLUDE_NEXT, /* the `#include_next' keyword */
567 T_IMPORT, /* the `#import' keyword */
568 T_IFDEF, /* the `#ifdef' keyword */
569 T_IFNDEF, /* the `#ifndef' keyword */
570 T_IF, /* the `#if' keyword */
571 T_ELSE, /* `#else' */
572 T_PRAGMA, /* `#pragma' */
573 T_ELIF, /* `#elif' */
574 T_UNDEF, /* `#undef' */
575 T_LINE, /* `#line' */
576 T_ERROR, /* `#error' */
577 T_WARNING, /* `#warning' */
578 T_ENDIF, /* `#endif' */
579 T_SCCS, /* `#sccs', used on system V. */
580 T_IDENT, /* `#ident', used on system V. */
581 T_ASSERT, /* `#assert', taken from system V. */
582 T_UNASSERT, /* `#unassert', taken from system V. */
583 T_SPECLINE, /* special symbol `__LINE__' */
584 T_DATE, /* `__DATE__' */
585 T_FILE, /* `__FILE__' */
586 T_BASE_FILE, /* `__BASE_FILE__' */
587 T_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
588 T_VERSION, /* `__VERSION__' */
589 T_TIME, /* `__TIME__' */
590 T_STDC, /* `__STDC__' */
591 T_CONST, /* Constant string, used by `__SIZE_TYPE__' etc */
592 T_MACRO, /* macro defined by `#define' */
593 T_DISABLED, /* macro temporarily turned off for rescan */
594 T_PCSTRING, /* precompiled string (hashval is KEYDEF *) */
595 T_UNUSED /* Used for something not defined. */
598 /* Structure returned by create_definition */
599 typedef struct macrodef MACRODEF;
602 struct definition *defn;
603 unsigned char *symnam;
607 /* Structure allocated for every #define. For a simple replacement
610 nargs = -1, the `pattern' list is null, and the expansion is just
611 the replacement text. Nargs = 0 means a functionlike macro with no args,
613 #define getchar() getc (stdin) .
614 When there are args, the expansion is the replacement text with the
615 args squashed out, and the reflist is a list describing how to
616 build the output from the input: e.g., "3 chars, then the 1st arg,
617 then 9 chars, then the 3rd arg, then 0 chars, then the 2nd arg".
618 The chars here come from the expansion. Whatever is left of the
619 expansion after the last arg-occurrence is copied after that arg.
620 Note that the reflist can be arbitrarily long---
621 its length depends on the number of times the arguments appear in
622 the replacement text, not how many args there are. Example:
623 #define f(x) x+x+x+x+x+x+x would have replacement text "++++++" and
625 { (0, 1), (1, 1), (1, 1), ..., (1, 1), NULL }
626 where (x, y) means (nchars, argno). */
628 typedef struct definition DEFINITION;
631 int length; /* length of expansion string */
632 int predefined; /* True if the macro was builtin or */
633 /* came from the command line */
634 unsigned char *expansion;
635 int line; /* Line number of definition */
636 char *file; /* File of definition */
637 char rest_args; /* Nonzero if last arg. absorbs the rest */
639 struct reflist *next;
640 char stringify; /* nonzero if this arg was preceded by a
642 char raw_before; /* Nonzero if a ## operator before arg. */
643 char raw_after; /* Nonzero if a ## operator after arg. */
644 char rest_args; /* Nonzero if this arg. absorbs the rest */
645 int nchars; /* Number of literal chars to copy before
646 this arg occurrence. */
647 int argno; /* Number of arg to substitute (origin-0) */
650 /* Names of macro args, concatenated in reverse order
651 with comma-space between them.
652 The only use of this is that we warn on redefinition
653 if this differs between the old and new definitions. */
654 unsigned char *argnames;
658 /* These tables are not really `const', but they are only modified at
659 initialization time, in a separate translation unit from the rest
660 of the library. We let the rest of the library think they are `const'
661 to get better code and some additional sanity checks. */
663 #define FAKE_CONST const
665 extern FAKE_CONST unsigned char is_idstart[256];
666 extern FAKE_CONST unsigned char is_idchar[256];
667 extern FAKE_CONST unsigned char is_hor_space[256];
668 extern FAKE_CONST unsigned char is_space[256];
669 extern FAKE_CONST unsigned char trigraph_table[256];
672 /* Stack of conditionals currently in progress
673 (including both successful and failing conditionals). */
676 struct if_stack *next; /* for chaining to the next stack frame */
677 char *fname; /* copied from input when frame is made */
678 int lineno; /* similarly */
679 int if_succeeded; /* true if a leg of this if-group
680 has been passed through rescan */
681 unsigned char *control_macro; /* For #ifndef at start of file,
682 this is the macro name tested. */
683 enum node_type type; /* type of last directive seen in this group */
685 typedef struct if_stack IF_STACK_FRAME;
687 extern void cpp_buf_line_and_col PARAMS((cpp_buffer *, long *, long *));
688 extern cpp_buffer* cpp_file_buffer PARAMS((cpp_reader *));
689 extern void cpp_define PARAMS ((cpp_reader *, unsigned char *));
690 extern void cpp_assert PARAMS ((cpp_reader *, unsigned char *));
691 extern void cpp_undef PARAMS ((cpp_reader *, unsigned char *));
692 extern void cpp_unassert PARAMS ((cpp_reader *, unsigned char *));
694 extern void cpp_error PVPROTO ((cpp_reader *, const char *, ...))
696 extern void cpp_warning PVPROTO ((cpp_reader *, const char *, ...))
698 extern void cpp_pedwarn PVPROTO ((cpp_reader *, const char *, ...))
700 extern void cpp_error_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
702 extern void cpp_warning_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
704 extern void cpp_pedwarn_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
706 extern void cpp_pedwarn_with_file_and_line PVPROTO ((cpp_reader *, char *, int, const char *, ...))
708 extern void cpp_message_from_errno PROTO ((cpp_reader *, int, const char *));
709 extern void cpp_error_from_errno PROTO ((cpp_reader *, const char *));
710 extern void cpp_perror_with_name PROTO ((cpp_reader *, const char *));
711 extern void v_cpp_message PROTO ((cpp_reader *, int, const char *, va_list));
713 extern void cpp_grow_buffer PARAMS ((cpp_reader *, long));
714 extern HOST_WIDEST_INT cpp_parse_escape PARAMS ((cpp_reader *, char **, HOST_WIDEST_INT));
715 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
716 unsigned char *, long));
717 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
719 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *, const unsigned char *,
721 extern void cpp_reader_init PARAMS ((cpp_reader *));
722 extern void cpp_options_init PARAMS ((cpp_options *));
723 extern int cpp_start_read PARAMS ((cpp_reader *, char *));
724 extern int cpp_read_check_assertion PARAMS ((cpp_reader *));
725 extern int scan_decls PARAMS ((cpp_reader *, int, char **));
726 extern void skip_rest_of_line PARAMS ((cpp_reader *));
727 extern void cpp_finish PARAMS ((cpp_reader *));
729 extern void quote_string PARAMS ((cpp_reader *, const char *));
730 extern void cpp_expand_to_buffer PARAMS ((cpp_reader *, U_CHAR *, int));
731 extern void cpp_scan_buffer PARAMS ((cpp_reader *));
732 extern int check_macro_name PARAMS ((cpp_reader *, U_CHAR *, int));
734 /* Last arg to output_line_command. */
735 enum file_change_code {same_file, enter_file, leave_file};
736 extern void output_line_command PARAMS ((cpp_reader *,
737 enum file_change_code));
739 /* From cpperror.c */
740 extern void cpp_fatal PVPROTO ((cpp_reader *, const char *, ...))
742 extern void cpp_message PVPROTO ((cpp_reader *, int, const char *, ...))
744 extern void cpp_pfatal_with_name PROTO ((cpp_reader *, const char *));
745 extern void cpp_file_line_for_message PROTO ((cpp_reader *, char *, int, int));
746 extern void cpp_print_containing_files PROTO ((cpp_reader *));
747 extern void cpp_notice PVPROTO ((const char *msgid, ...)) ATTRIBUTE_PRINTF_1;
750 extern void simplify_pathname PROTO ((char *));
751 extern void merge_include_chains PROTO ((struct cpp_options *));
752 extern int find_include_file PROTO ((cpp_reader *, char *,
753 struct file_name_list *,
754 struct include_hash **,
756 extern int finclude PROTO ((cpp_reader *, int,
757 struct include_hash *));
758 extern void deps_output PROTO ((cpp_reader *, char *, int));
759 extern struct include_hash *include_hash PROTO ((cpp_reader *, char *, int));
761 #ifndef INCLUDE_LEN_FUDGE
762 #define INCLUDE_LEN_FUDGE 0
769 #endif /* __GCC_CPPLIB__ */