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. */
140 /* Used by the C++ frontend to implement redirected input (such as for
141 default argument and/or template parsing). */
145 struct file_name_map_list;
147 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
148 efficiency, and partly to limit runaway recursion. */
149 #define CPP_STACK_MAX 200
151 /* A cpp_reader encapsulates the "state" of a pre-processor run.
152 Applying cpp_get_token repeatedly yields a stream of pre-processor
153 tokens. Usually, there is only one cpp_reader object active. */
157 parse_underflow_t get_token;
161 /* A buffer used for both for cpp_get_token's output, and also internally. */
162 unsigned char *token_buffer;
163 /* Allocated size of token_buffer. CPP_RESERVE allocates space. */
164 unsigned int token_buffer_size;
165 /* End of the written part of token_buffer. */
166 unsigned char *limit;
168 /* Error counter for exit code */
171 /* Line where a newline was first seen in a string constant. */
172 int multiline_string_line;
174 /* Current depth in #include directives that use <...>. */
175 int system_include_depth;
177 /* Current depth of buffer stack. */
178 int buffer_stack_depth;
180 /* Hash table of macros and assertions. See cpphash.c */
181 #define HASHSIZE 1403
182 struct hashnode **hashtab;
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. */
249 /* A buffer and a table, used only by read_and_prescan (in cppfiles.c)
250 which are allocated once per cpp_reader object to keep them off the
251 stack and avoid setup costs. */
252 U_CHAR *input_buffer;
253 U_CHAR *input_speccase;
254 size_t input_buffer_len;
257 #define CPP_FATAL_LIMIT 1000
258 /* True if we have seen a "fatal" error. */
259 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
261 #define CPP_BUF_PEEK(BUFFER) \
262 ((BUFFER)->cur < (BUFFER)->rlimit ? *(BUFFER)->cur : EOF)
263 #define CPP_BUF_GET(BUFFER) \
264 ((BUFFER)->cur < (BUFFER)->rlimit ? *(BUFFER)->cur++ : EOF)
265 #define CPP_FORWARD(BUFFER, N) ((BUFFER)->cur += (N))
267 /* Macros for manipulating the token_buffer. */
269 #define CPP_OUT_BUFFER(PFILE) ((PFILE)->token_buffer)
271 /* Number of characters currently in PFILE's output buffer. */
272 #define CPP_WRITTEN(PFILE) ((size_t)((PFILE)->limit - (PFILE)->token_buffer))
273 #define CPP_PWRITTEN(PFILE) ((PFILE)->limit)
275 /* Make sure PFILE->token_buffer has space for at least N more characters. */
276 #define CPP_RESERVE(PFILE, N) \
277 (CPP_WRITTEN (PFILE) + (size_t)(N) > (PFILE)->token_buffer_size \
278 && (cpp_grow_buffer (PFILE, N), 0))
280 /* Append string STR (of length N) to PFILE's output buffer.
281 Assume there is enough space. */
282 #define CPP_PUTS_Q(PFILE, STR, N) \
283 (memcpy ((PFILE)->limit, STR, (N)), (PFILE)->limit += (N))
284 /* Append string STR (of length N) to PFILE's output buffer. Make space. */
285 #define CPP_PUTS(PFILE, STR, N) CPP_RESERVE(PFILE, N), CPP_PUTS_Q(PFILE, STR,N)
286 /* Append character CH to PFILE's output buffer. Assume sufficient space. */
287 #define CPP_PUTC_Q(PFILE, CH) (*(PFILE)->limit++ = (CH))
288 /* Append character CH to PFILE's output buffer. Make space if need be. */
289 #define CPP_PUTC(PFILE, CH) (CPP_RESERVE (PFILE, 1), CPP_PUTC_Q (PFILE, CH))
290 /* Make sure PFILE->limit is followed by '\0'. */
291 #define CPP_NUL_TERMINATE_Q(PFILE) (*(PFILE)->limit = 0)
292 #define CPP_NUL_TERMINATE(PFILE) (CPP_RESERVE(PFILE, 1), *(PFILE)->limit = 0)
293 #define CPP_ADJUST_WRITTEN(PFILE,DELTA) ((PFILE)->limit += (DELTA))
294 #define CPP_SET_WRITTEN(PFILE,N) ((PFILE)->limit = (PFILE)->token_buffer + (N))
296 /* Advance the current line by one. */
297 #define CPP_BUMP_BUFFER_LINE(PBUF) ((PBUF)->lineno++,\
298 (PBUF)->line_base = (PBUF)->cur)
299 #define CPP_BUMP_LINE(PFILE) CPP_BUMP_BUFFER_LINE(CPP_BUFFER(PFILE))
301 #define CPP_OPTIONS(PFILE) ((PFILE)->opts)
302 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
303 #define CPP_PREV_BUFFER(BUFFER) ((BUFFER)->prev)
304 /* The bottom of the buffer stack. */
305 #define CPP_NULL_BUFFER(PFILE) NULL
307 /* The `pending' structure accumulates all the options that are not
308 actually processed until we hit cpp_start_read. It consists of
309 several lists, one for each type of option. We keep both head and
310 tail pointers for quick insertion. */
313 struct pending_option *define_head, *define_tail;
314 struct pending_option *assert_head, *assert_tail;
316 struct file_name_list *quote_head, *quote_tail;
317 struct file_name_list *brack_head, *brack_tail;
318 struct file_name_list *systm_head, *systm_tail;
319 struct file_name_list *after_head, *after_tail;
321 struct pending_option *imacros_head, *imacros_tail;
322 struct pending_option *include_head, *include_tail;
325 /* Pointed to by cpp_reader.opts. */
329 /* Name of output file, for error messages. */
330 const char *out_fname;
332 struct file_name_map_list *map_list;
334 /* Non-0 means -v, so print the full set of include dirs. */
337 /* Nonzero means use extra default include directories for C++. */
341 /* Nonzero means handle cplusplus style comments */
343 char cplusplus_comments;
345 /* Nonzero means handle #import, for objective C. */
349 /* Nonzero means this is an assembly file, and allow
350 unknown directives, which could be comments. */
354 /* Nonzero means turn NOTREACHED into #pragma NOTREACHED etc */
358 /* Nonzero means handle CHILL comment syntax
359 and output CHILL string delimiter for __DATE___ etc. */
363 /* Nonzero means copy comments into the output file. */
365 char put_out_comments;
367 /* Nonzero means process the ANSI trigraph sequences. */
371 /* Nonzero means print the names of included files rather than
372 the preprocessed output. 1 means just the #include "...",
373 2 means #include <...> as well. */
377 /* Nonzero if missing .h files in -M output are assumed to be generated
378 files and not errors. */
380 char print_deps_missing_files;
382 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
383 char print_deps_append;
385 /* Nonzero means print names of header files (-H). */
387 char print_include_names;
389 /* Nonzero means try to make failure to fit ANSI C an error. */
391 char pedantic_errors;
393 /* Nonzero means don't print warning messages. -w. */
395 char inhibit_warnings;
397 /* Nonzero means warn if slash-star appears in a comment. */
401 /* Nonzero means warn if there are any trigraphs. */
405 /* Nonzero means warn if #import is used. */
409 /* Nonzero means warn if a macro argument is (or would be)
410 stringified with -traditional. */
414 /* Nonzero means turn warnings into errors. */
416 char warnings_are_errors;
418 /* Nonzero causes output not to be done,
419 but directives such as #define that have side effects
424 /* Nonzero means we should look for header.gcc files that remap file
428 /* Nonzero means don't output line number information. */
430 char no_line_commands;
432 /* Nonzero means output the text in failing conditionals,
433 inside #failed ... #endfailed. */
435 char output_conditionals;
437 /* Nonzero means -I- has been seen,
438 so don't look for #include "foo" the source-file directory. */
441 /* Zero means dollar signs are punctuation.
442 This used to be needed for conformance to the C Standard,
443 before the C Standard was corrected. */
444 char dollars_in_ident;
446 /* Nonzero means try to imitate old fashioned non-ANSI preprocessor. */
449 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
452 /* Nonzero for the 1989 C Standard, including corrigenda and amendments. */
455 /* Nonzero for the 199x C Standard, including corrigenda and amendments. */
458 /* Nonzero means give all the error messages the ANSI standard requires. */
461 /* Nonzero means we're looking at already preprocessed code, so don't
462 bother trying to do macro expansion and whatnot. */
465 char done_initializing;
467 /* Search paths for include files. */
468 struct file_name_list *quote_include; /* First dir to search for "file" */
469 struct file_name_list *bracket_include;/* First dir to search for <file> */
471 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
472 in the standard include file directories. */
473 char *include_prefix;
474 int include_prefix_len;
476 char no_standard_includes;
477 char no_standard_cplusplus_includes;
479 /* dump_only means inhibit output of the preprocessed text
480 and instead output the definitions of all user-defined
481 macros in a form suitable for use as input to cccp.
482 dump_names means pass #define and the macro name through to output.
483 dump_definitions means pass the whole definition (plus #define) through
486 enum {dump_none = 0, dump_only, dump_names, dump_definitions}
489 /* Nonzero means pass all #define and #undef directives which we actually
490 process through to the output stream. This feature is used primarily
491 to allow cc1 to record the #defines and #undefs for the sake of
492 debuggers which understand about preprocessor macros, but it may
493 also be useful with -E to figure out how symbols are defined, and
494 where they are defined. */
497 /* Nonzero means pass #include lines through to the output,
498 even if they are ifdefed out. */
501 /* Pending options - -D, -U, -A, -I, -ixxx. */
502 struct cpp_pending *pending;
504 /* File name which deps are being written to.
505 This is 0 if deps are being written to stdout. */
508 /* Target-name to write with the dependency information. */
512 #define CPP_TRADITIONAL(PFILE) (CPP_OPTIONS(PFILE)-> traditional)
513 #define CPP_WARN_UNDEF(PFILE) (CPP_OPTIONS(PFILE)->warn_undef)
514 #define CPP_C89(PFILE) (CPP_OPTIONS(PFILE)->c89)
515 #define CPP_PEDANTIC(PFILE) (CPP_OPTIONS (PFILE)->pedantic)
516 #define CPP_PRINT_DEPS(PFILE) (CPP_OPTIONS (PFILE)->print_deps)
518 /* List of directories to look for include files in. */
519 struct file_name_list
521 struct file_name_list *next;
522 struct file_name_list *alloc; /* for the cache of
523 current directory entries */
526 /* We use these to tell if the directory mentioned here is a duplicate
527 of an earlier directory on the search path. */
530 /* If the following is nonzero, it is a C-language system include
533 /* Mapping of file names for this directory.
534 Only used on MS-DOS and related platforms. */
535 struct file_name_map *name_map;
537 #define ABSOLUTE_PATH ((struct file_name_list *)-1)
539 /* This structure is used for the table of all includes. It is
540 indexed by the `short name' (the name as it appeared in the
541 #include statement) which is stored in *nshort. */
544 struct include_hash *next;
545 /* Next file with the same short name but a
546 different (partial) pathname). */
547 struct include_hash *next_this_file;
549 /* Location of the file in the include search path.
550 Used for include_next */
551 struct file_name_list *foundhere;
552 char *name; /* (partial) pathname of file */
553 char *nshort; /* name of file as referenced in #include */
554 const char *control_macro; /* macro, if any, preventing reinclusion - see
555 redundant_include_p */
556 char *buf, *limit; /* for file content cache, not yet implemented */
559 /* Name under which this program was invoked. */
561 extern const char *progname;
563 /* The structure of a node in the hash table. The hash table
564 has entries for all tokens defined by #define commands (type T_MACRO),
565 plus some special tokens like __LINE__ (these each have their own
566 type, and the appropriate code is run when that type of node is seen.
567 It does not contain control words like "#define", which are recognized
568 by a separate piece of code. */
570 /* different flavors of hash nodes --- also used in keyword table */
572 T_DEFINE = 1, /* the `#define' keyword */
573 T_INCLUDE, /* the `#include' keyword */
574 T_INCLUDE_NEXT, /* the `#include_next' keyword */
575 T_IMPORT, /* the `#import' keyword */
576 T_IFDEF, /* the `#ifdef' keyword */
577 T_IFNDEF, /* the `#ifndef' keyword */
578 T_IF, /* the `#if' keyword */
579 T_ELSE, /* `#else' */
580 T_PRAGMA, /* `#pragma' */
581 T_ELIF, /* `#elif' */
582 T_UNDEF, /* `#undef' */
583 T_LINE, /* `#line' */
584 T_ERROR, /* `#error' */
585 T_WARNING, /* `#warning' */
586 T_ENDIF, /* `#endif' */
587 T_SCCS, /* `#sccs', used on system V. */
588 T_IDENT, /* `#ident', used on system V. */
589 T_ASSERT, /* `#assert', taken from system V. */
590 T_UNASSERT, /* `#unassert', taken from system V. */
591 T_SPECLINE, /* special symbol `__LINE__' */
592 T_DATE, /* `__DATE__' */
593 T_FILE, /* `__FILE__' */
594 T_BASE_FILE, /* `__BASE_FILE__' */
595 T_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
596 T_VERSION, /* `__VERSION__' */
597 T_TIME, /* `__TIME__' */
598 T_STDC, /* `__STDC__' */
599 T_CONST, /* Constant string, used by `__SIZE_TYPE__' etc */
600 T_MACRO, /* macro defined by `#define' */
601 T_DISABLED, /* macro temporarily turned off for rescan */
602 T_PCSTRING, /* precompiled string (hashval is KEYDEF *) */
603 T_UNUSED /* Used for something not defined. */
606 /* Structure returned by create_definition */
607 typedef struct macrodef MACRODEF;
610 struct definition *defn;
611 unsigned char *symnam;
615 /* Structure allocated for every #define. For a simple replacement
618 nargs = -1, the `pattern' list is null, and the expansion is just
619 the replacement text. Nargs = 0 means a functionlike macro with no args,
621 #define getchar() getc (stdin) .
622 When there are args, the expansion is the replacement text with the
623 args squashed out, and the reflist is a list describing how to
624 build the output from the input: e.g., "3 chars, then the 1st arg,
625 then 9 chars, then the 3rd arg, then 0 chars, then the 2nd arg".
626 The chars here come from the expansion. Whatever is left of the
627 expansion after the last arg-occurrence is copied after that arg.
628 Note that the reflist can be arbitrarily long---
629 its length depends on the number of times the arguments appear in
630 the replacement text, not how many args there are. Example:
631 #define f(x) x+x+x+x+x+x+x would have replacement text "++++++" and
633 { (0, 1), (1, 1), (1, 1), ..., (1, 1), NULL }
634 where (x, y) means (nchars, argno). */
636 typedef struct definition DEFINITION;
639 int length; /* length of expansion string */
640 int predefined; /* True if the macro was builtin or */
641 /* came from the command line */
642 unsigned char *expansion;
643 int line; /* Line number of definition */
644 const char *file; /* File of definition */
645 char rest_args; /* Nonzero if last arg. absorbs the rest */
647 struct reflist *next;
648 char stringify; /* nonzero if this arg was preceded by a
650 char raw_before; /* Nonzero if a ## operator before arg. */
651 char raw_after; /* Nonzero if a ## operator after arg. */
652 char rest_args; /* Nonzero if this arg. absorbs the rest */
653 int nchars; /* Number of literal chars to copy before
654 this arg occurrence. */
655 int argno; /* Number of arg to substitute (origin-0) */
658 /* Names of macro args, concatenated in reverse order
659 with comma-space between them.
660 The only use of this is that we warn on redefinition
661 if this differs between the old and new definitions. */
662 unsigned char *argnames;
666 /* These tables are not really `const', but they are only modified at
667 initialization time, in a separate translation unit from the rest
668 of the library. We let the rest of the library think they are `const'
669 to get better code and some additional sanity checks. */
671 #define FAKE_CONST const
673 extern FAKE_CONST unsigned char is_idstart[256];
674 extern FAKE_CONST unsigned char is_idchar[256];
675 extern FAKE_CONST unsigned char is_hor_space[256];
676 extern FAKE_CONST unsigned char is_space[256];
677 extern FAKE_CONST unsigned char trigraph_table[256];
680 /* Stack of conditionals currently in progress
681 (including both successful and failing conditionals). */
684 struct if_stack *next; /* for chaining to the next stack frame */
685 char *fname; /* copied from input when frame is made */
686 int lineno; /* similarly */
687 int if_succeeded; /* true if a leg of this if-group
688 has been passed through rescan */
689 unsigned char *control_macro; /* For #ifndef at start of file,
690 this is the macro name tested. */
691 enum node_type type; /* type of last directive seen in this group */
693 typedef struct if_stack IF_STACK_FRAME;
695 extern void cpp_buf_line_and_col PARAMS((cpp_buffer *, long *, long *));
696 extern cpp_buffer* cpp_file_buffer PARAMS((cpp_reader *));
697 extern void cpp_define PARAMS ((cpp_reader *, unsigned char *));
698 extern void cpp_assert PARAMS ((cpp_reader *, unsigned char *));
699 extern void cpp_undef PARAMS ((cpp_reader *, unsigned char *));
700 extern void cpp_unassert PARAMS ((cpp_reader *, unsigned char *));
702 extern void cpp_error PVPROTO ((cpp_reader *, const char *, ...))
704 extern void cpp_warning PVPROTO ((cpp_reader *, const char *, ...))
706 extern void cpp_pedwarn PVPROTO ((cpp_reader *, const char *, ...))
708 extern void cpp_error_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
710 extern void cpp_warning_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
712 extern void cpp_pedwarn_with_line PVPROTO ((cpp_reader *, int, int, const char *, ...))
714 extern void cpp_pedwarn_with_file_and_line PVPROTO ((cpp_reader *, const char *, int, const char *, ...))
716 extern void cpp_message_from_errno PROTO ((cpp_reader *, int, const char *));
717 extern void cpp_error_from_errno PROTO ((cpp_reader *, const char *));
718 extern void cpp_perror_with_name PROTO ((cpp_reader *, const char *));
719 extern void v_cpp_message PROTO ((cpp_reader *, int, const char *, va_list));
721 extern void cpp_grow_buffer PARAMS ((cpp_reader *, long));
722 extern HOST_WIDEST_INT cpp_parse_escape PARAMS ((cpp_reader *, char **, HOST_WIDEST_INT));
723 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
724 unsigned char *, long));
725 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
727 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *, const unsigned char *,
729 extern void cpp_reader_init PARAMS ((cpp_reader *));
730 extern void cpp_options_init PARAMS ((cpp_options *));
731 extern int cpp_start_read PARAMS ((cpp_reader *, char *));
732 extern int cpp_read_check_assertion PARAMS ((cpp_reader *));
733 extern int scan_decls PARAMS ((cpp_reader *, int, char **));
734 extern void skip_rest_of_line PARAMS ((cpp_reader *));
735 extern void cpp_finish PARAMS ((cpp_reader *));
737 extern void quote_string PARAMS ((cpp_reader *, const char *));
738 extern void cpp_expand_to_buffer PARAMS ((cpp_reader *, const U_CHAR *,
740 extern void cpp_scan_buffer PARAMS ((cpp_reader *));
741 extern int check_macro_name PARAMS ((cpp_reader *, const U_CHAR *, int));
743 /* Last arg to output_line_command. */
744 enum file_change_code {same_file, enter_file, leave_file};
745 extern void output_line_command PARAMS ((cpp_reader *,
746 enum file_change_code));
748 /* From cpperror.c */
749 extern void cpp_fatal PVPROTO ((cpp_reader *, const char *, ...))
751 extern void cpp_message PVPROTO ((cpp_reader *, int, const char *, ...))
753 extern void cpp_pfatal_with_name PROTO ((cpp_reader *, const char *))
755 extern void cpp_file_line_for_message PROTO ((cpp_reader *, const char *,
757 extern void cpp_print_containing_files PROTO ((cpp_reader *));
758 extern void cpp_notice PVPROTO ((const char *msgid, ...)) ATTRIBUTE_PRINTF_1;
761 extern void simplify_pathname PROTO ((char *));
762 extern void merge_include_chains PROTO ((struct cpp_options *));
763 extern int find_include_file PROTO ((cpp_reader *, const char *,
764 struct file_name_list *,
765 struct include_hash **,
767 extern int finclude PROTO ((cpp_reader *, int,
768 struct include_hash *));
769 extern void deps_output PROTO ((cpp_reader *,
771 extern struct include_hash *include_hash PROTO ((cpp_reader *, const char *, int));
773 #ifndef INCLUDE_LEN_FUDGE
774 #define INCLUDE_LEN_FUDGE 0
781 #endif /* __GCC_CPPLIB__ */