1 /* Definitions for CPP library.
2 Copyright (C) 1995, 96-99, 2000 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 struct cpp_reader cpp_reader;
32 typedef struct cpp_buffer cpp_buffer;
33 typedef struct cpp_options cpp_options;
34 typedef struct cpp_printer cpp_printer;
35 typedef struct cpp_token cpp_token;
36 typedef struct cpp_toklist cpp_toklist;
37 typedef struct cpp_name cpp_name;
38 typedef struct cpp_hashnode cpp_hashnode;
40 /* The first two groups, apart from '=', can appear in preprocessor
41 expressions. This allows a lookup table to be implemented in
44 The first group, to CPP_LAST_EQ, can be immediately followed by an
45 '='. The lexer needs operators ending in '=', like ">>=", to be in
46 the same order as their counterparts without the '=', like ">>". */
48 /* Positions in the table. */
49 #define CPP_LAST_EQ CPP_LSHIFT
50 #define CPP_FIRST_DIGRAPH CPP_HASH
55 T(CPP_GREATER, ">") /* compare */ \
57 T(CPP_PLUS, "+") /* math */ \
62 T(CPP_AND, "&") /* bit ops */ \
69 T(CPP_AND_AND, "&&") /* logical */ \
73 T(CPP_COMMA, ",") /* grouping */ \
74 T(CPP_OPEN_PAREN, "(") \
75 T(CPP_CLOSE_PAREN, ")") \
76 T(CPP_EQ_EQ, "==") /* compare */ \
78 T(CPP_GREATER_EQ, ">=") \
79 T(CPP_LESS_EQ, "<=") \
81 T(CPP_PLUS_EQ, "+=") /* math */ \
82 T(CPP_MINUS_EQ, "-=") \
83 T(CPP_MULT_EQ, "*=") \
86 T(CPP_AND_EQ, "&=") /* bit ops */ \
89 T(CPP_RSHIFT_EQ, ">>=") \
90 T(CPP_LSHIFT_EQ, "<<=") \
91 /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \
92 T(CPP_HASH, "#") /* digraphs */ \
94 T(CPP_OPEN_SQUARE, "[") \
95 T(CPP_CLOSE_SQUARE, "]") \
96 T(CPP_OPEN_BRACE, "{") \
97 T(CPP_CLOSE_BRACE, "}") \
98 /* The remainder of the punctuation. Order is not significant. */ \
99 T(CPP_SEMICOLON, ";") /* structure */ \
100 T(CPP_ELLIPSIS, "...") \
101 T(CPP_BACKSLASH, "\\") \
102 T(CPP_PLUS_PLUS, "++") /* increment */ \
103 T(CPP_MINUS_MINUS, "--") \
104 T(CPP_DEREF, "->") /* accessors */ \
107 T(CPP_DEREF_STAR, "->*") \
108 T(CPP_DOT_STAR, ".*") \
109 T(CPP_MIN, "<?") /* extension */ \
111 C(CPP_OTHER, 0) /* stray punctuation */ \
113 I(CPP_NAME, 0) /* word */ \
114 I(CPP_INT, 0) /* 23 */ \
115 I(CPP_FLOAT, 0) /* 3.14159 */ \
116 I(CPP_NUMBER, 0) /* 34_be+ta */ \
117 S(CPP_CHAR, 0) /* 'char' */ \
118 S(CPP_WCHAR, 0) /* L'char' */ \
119 S(CPP_STRING, 0) /* "string" */ \
120 S(CPP_WSTRING, 0) /* L"string" */ \
122 I(CPP_COMMENT, 0) /* Only if output comments. */ \
123 N(CPP_MACRO_ARG, 0) /* Macro argument. */ \
124 N(CPP_SUBLIST, 0) /* Sublist. */ \
125 N(CPP_EOF, 0) /* End of file. */ \
126 N(CPP_HEADER_NAME, 0) /* <stdio.h> in #include */ \
128 /* Obsolete - will be removed when no code uses them still. */ \
129 T(CPP_VSPACE, "\n") /* End of line. */ \
130 N(CPP_HSPACE, 0) /* Horizontal white space. */ \
131 N(CPP_DIRECTIVE, 0) /* #define and the like */ \
132 N(CPP_MACRO, 0) /* Like a NAME, but expanded. */
150 /* Payload of a NAME, NUMBER, FLOAT, STRING, or COMMENT token. */
154 const unsigned char *text;
157 /* Accessor macros for token lists - all expect you have a
158 list and an index. */
160 #define TOK_TYPE(l_, i_) ((l_)->tokens[i_].type)
161 #define TOK_FLAGS(l_, i_) ((l_)->tokens[i_].flags)
162 #define TOK_AUX(l_, i_) ((l_)->tokens[i_].aux)
163 #define TOK_COL(l_, i_) ((l_)->tokens[i_].col)
164 #define TOK_INT(l_, i_) ((l_)->tokens[i_].val.integer)
165 #define TOK_NAME(l_, i_) ((l_)->tokens[i_].val.name.text)
166 #define TOK_LEN(l_, i_) ((l_)->tokens[i_].val.name.len)
168 #define TOK_PREV_WHITE(l_, i_) (TOK_FLAGS(l_, i_) & PREV_WHITESPACE)
170 /* Flags for the cpp_token structure. */
171 #define PREV_WHITESPACE 1 /* If whitespace before this token. */
172 #define BOL 2 /* Beginning of line. */
173 #define DIGRAPH 4 /* If it was a digraph. */
174 #define UNSIGNED_INT 8 /* If int preprocessing token unsigned. */
176 /* A preprocessing token. This has been carefully packed and should
177 occupy 16 bytes on both 32- and 64-bit hosts. */
180 unsigned short col; /* starting column of this token */
181 ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* node type */
182 unsigned char flags; /* flags - see above */
183 unsigned int aux; /* CPP_OTHER character. Hash of a
184 NAME, or something - see uses
188 struct cpp_name name; /* a string */
189 HOST_WIDEST_INT integer; /* an integer */
194 #define LIST_OFFSET (1 << 0)
196 /* Directive flags. */
197 #define SYNTAX_INCLUDE (1 << 8)
199 typedef int (*directive_handler) PARAMS ((cpp_reader *));
203 cpp_token *tokens; /* actual tokens as an array */
204 unsigned int tokens_used; /* tokens used */
205 unsigned int tokens_cap; /* tokens allocated */
207 unsigned char *namebuf; /* names buffer */
208 unsigned int name_used; /* _bytes_ used */
209 unsigned int name_cap; /* _bytes_ allocated */
211 unsigned int line; /* starting line number */
213 /* The handler to call after lexing the rest of this line.
217 /* Per-list flags, see above */
218 unsigned short flags;
223 const unsigned char *cur; /* current position */
224 const unsigned char *rlimit; /* end of valid data */
225 const unsigned char *buf; /* entire buffer */
226 const unsigned char *line_base; /* start of current line */
227 const unsigned char *mark; /* Saved position for lengthy backtrack. */
229 struct cpp_buffer *prev;
231 /* Filename specified with #line command. */
232 const char *nominal_fname;
233 /* Actual directory of this file, used only for "" includes */
234 struct file_name_list *actual_dir;
236 /* Pointer into the include hash table. Used for include_next and
237 to record control macros. */
240 /* If the buffer is the expansion of a macro, this points to the
241 macro's hash table entry. */
242 struct cpp_hashnode *macro;
244 /* Value of if_stack at start of this file.
245 Used to prohibit unmatched #endif (etc) in an include file. */
246 struct if_stack *if_stack;
248 /* Line number at line_base (above). */
251 /* True if this is a header file included using <FILENAME>. */
252 char system_header_p;
254 /* True if buffer contains escape sequences.
255 Currently there are two kinds:
256 "\r-" means following identifier should not be macro-expanded.
257 "\r " means a token-separator. This turns into " " in final output
258 if not stringizing and needed to separate tokens; otherwise nothing.
259 Any other two-character sequence beginning with \r is an error.
261 If this is NOT set, then \r is a one-character escape meaning backslash
262 newline. This is guaranteed not to occur in the middle of a token.
263 The two interpretations of \r do not conflict, because the two-character
264 escapes are used only in macro buffers, and backslash-newline is removed
265 from macro expansion text in collect_expansion and/or macarg. */
268 /* True if we have already warned about C++ comments in this file.
269 The warning happens only for C89 extended mode with -pedantic on,
270 or for -Wtraditional, and only once per file (otherwise it would
271 be far too noisy). */
272 char warned_cplusplus_comments;
274 /* In a file buffer, true if this buffer's data is mmapped
275 (currently never the case). In a macro buffer, true if this
276 buffer's data must be freed. */
280 struct file_name_map_list;
283 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
284 efficiency, and partly to limit runaway recursion. */
285 #define CPP_STACK_MAX 200
287 /* Values for opts.dump_macros.
288 dump_only means inhibit output of the preprocessed text
289 and instead output the definitions of all user-defined
290 macros in a form suitable for use as input to cpp.
291 dump_names means pass #define and the macro name through to output.
292 dump_definitions means pass the whole definition (plus #define) through
294 enum { dump_none = 0, dump_only, dump_names, dump_definitions };
296 /* This structure is nested inside struct cpp_reader, and
297 carries all the options visible to the command line. */
300 /* Name of input and output files. */
301 const char *in_fname;
302 const char *out_fname;
304 /* Characters between tab stops. */
305 unsigned int tabstop;
307 /* Pending options - -D, -U, -A, -I, -ixxx. */
308 struct cpp_pending *pending;
310 /* File name which deps are being written to. This is 0 if deps are
311 being written to stdout. */
312 const char *deps_file;
314 /* Target-name to write with the dependency information. */
317 /* Search paths for include files. */
318 struct file_name_list *quote_include; /* First dir to search for "file" */
319 struct file_name_list *bracket_include;/* First dir to search for <file> */
321 /* Map between header names and file names, used only on DOS where
322 file names are limited in length. */
323 struct file_name_map_list *map_list;
325 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
326 in the standard include file directories. */
327 const char *include_prefix;
328 unsigned int include_prefix_len;
330 /* Non-0 means -v, so print the full set of include dirs. */
331 unsigned char verbose;
333 /* Nonzero means use extra default include directories for C++. */
334 unsigned char cplusplus;
336 /* Nonzero means handle cplusplus style comments */
337 unsigned char cplusplus_comments;
339 /* Nonzero means handle #import, for objective C. */
342 /* Nonzero means this is an assembly file, so ignore unrecognized
343 directives and the "# 33" form of #line, both of which are
344 probably comments. Also, permit unbalanced ' strings (again,
345 likely to be in comments). */
346 unsigned char lang_asm;
348 /* Nonzero means this is Fortran, and we don't know where the
349 comments are, so permit unbalanced ' strings. Unlike lang_asm,
350 this does not ignore unrecognized directives. */
351 unsigned char lang_fortran;
353 /* Nonzero means handle CHILL comment syntax and output CHILL string
354 delimiters for __DATE__ etc. */
357 /* Nonzero means don't copy comments into the output file. */
358 unsigned char discard_comments;
360 /* Nonzero means process the ANSI trigraph sequences. */
361 unsigned char trigraphs;
363 /* Nonzero means print the names of included files rather than the
364 preprocessed output. 1 means just the #include "...", 2 means
365 #include <...> as well. */
366 unsigned char print_deps;
368 /* Nonzero if missing .h files in -M output are assumed to be
369 generated files and not errors. */
370 unsigned char print_deps_missing_files;
372 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
373 unsigned char print_deps_append;
375 /* Nonzero means print names of header files (-H). */
376 unsigned char print_include_names;
378 /* Nonzero means cpp_pedwarn causes a hard error. */
379 unsigned char pedantic_errors;
381 /* Nonzero means don't print warning messages. */
382 unsigned char inhibit_warnings;
384 /* Nonzero means don't print error messages. Has no option to
385 select it, but can be set by a user of cpplib (e.g. fix-header). */
386 unsigned char inhibit_errors;
388 /* Nonzero means warn if slash-star appears in a comment. */
389 unsigned char warn_comments;
391 /* Nonzero means warn if there are any trigraphs. */
392 unsigned char warn_trigraphs;
394 /* Nonzero means warn if #import is used. */
395 unsigned char warn_import;
397 /* Nonzero means warn if a macro argument is (or would be)
398 stringified with -traditional, and warn about directives
399 with the # indented from the beginning of the line. */
400 unsigned char warn_traditional;
402 /* Nonzero means turn warnings into errors. */
403 unsigned char warnings_are_errors;
405 /* Nonzero causes output not to be done, but directives such as
406 #define that have side effects are still obeyed. */
407 unsigned char no_output;
409 /* Nonzero means we should look for header.gcc files that remap file
413 /* Nonzero means don't output line number information. */
414 unsigned char no_line_commands;
416 /* Nonzero means -I- has been seen, so don't look for #include "foo"
417 the source-file directory. */
418 unsigned char ignore_srcdir;
420 /* Zero means dollar signs are punctuation. */
421 unsigned char dollars_in_ident;
423 /* Nonzero means try to imitate old fashioned non-ANSI preprocessor. */
424 unsigned char traditional;
426 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
427 unsigned char warn_undef;
429 /* Nonzero for the 1989 C Standard, including corrigenda and amendments. */
432 /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */
435 /* Nonzero means give all the error messages the ANSI standard requires. */
436 unsigned char pedantic;
438 /* Nonzero means we're looking at already preprocessed code, so don't
439 bother trying to do macro expansion and whatnot. */
440 unsigned char preprocessed;
442 /* Nonzero disables all the standard directories for headers. */
443 unsigned char no_standard_includes;
445 /* Nonzero disables the C++-specific standard directories for headers. */
446 unsigned char no_standard_cplusplus_includes;
448 /* Nonzero means dump macros in some fashion - see above. */
449 unsigned char dump_macros;
451 /* Nonzero means pass all #define and #undef directives which we
452 actually process through to the output stream. This feature is
453 used primarily to allow cc1 to record the #defines and #undefs
454 for the sake of debuggers which understand about preprocessor
455 macros, but it may also be useful with -E to figure out how
456 symbols are defined, and where they are defined. */
457 unsigned char debug_output;
459 /* Nonzero means pass #include lines through to the output. */
460 unsigned char dump_includes;
462 /* Print column number in error messages. */
463 unsigned char show_column;
467 /* A cpp_reader encapsulates the "state" of a pre-processor run.
468 Applying cpp_get_token repeatedly yields a stream of pre-processor
469 tokens. Usually, there is only one cpp_reader object active. */
473 /* Top of buffer stack. */
476 /* Token list used by get_directive_token. */
477 cpp_toklist directbuf;
479 /* A buffer used for both for cpp_get_token's output, and also internally. */
480 unsigned char *token_buffer;
481 /* Allocated size of token_buffer. CPP_RESERVE allocates space. */
482 unsigned int token_buffer_size;
483 /* End of the written part of token_buffer. */
484 unsigned char *limit;
486 /* Error counter for exit code */
489 /* Line where a newline was first seen in a string constant. */
490 unsigned int multiline_string_line;
492 /* Current depth in #include directives that use <...>. */
493 unsigned int system_include_depth;
495 /* Current depth of buffer stack. */
496 unsigned int buffer_stack_depth;
498 /* Hash table of macros and assertions. See cpphash.c */
499 struct htab *hashtab;
501 /* Hash table of other included files. See cppfiles.c */
502 struct htab *all_include_files;
504 /* Chain of `actual directory' file_name_list entries,
506 struct file_name_list *actual_dirs;
508 /* Current maximum length of directory names in the search path
509 for include files. (Altered as we get more of them.) */
510 unsigned int max_include_len;
512 const cpp_hashnode *potential_control_macro;
514 /* Token column position adjustment owing to tabs in whitespace. */
515 unsigned int col_adjust;
517 /* Buffer of -M output. */
520 /* A buffer used only by read_and_prescan (in cppfiles.c), which is
521 allocated once per cpp_reader object to keep it off the stack. */
522 unsigned char *input_buffer;
523 size_t input_buffer_len;
525 /* User visible options. */
526 struct cpp_options opts;
528 /* Nonzero means we have printed (while error reporting) a list of
529 containing files that matches the current status. */
530 unsigned char input_stack_listing_current;
532 /* If non-zero, macros are not expanded. */
533 unsigned char no_macro_expand;
535 /* If non-zero, directives cause a hard error. Used when parsing
537 unsigned char no_directives;
539 /* We're printed a warning recommending against using #import. */
540 unsigned char import_warning;
542 /* If true, characters between '<' and '>' are a single (string) token. */
543 unsigned char parsing_include_directive;
545 /* True if escape sequences (as described for has_escapes in
546 parse_buffer) should be emitted. */
547 unsigned char output_escapes;
549 /* 0: Have seen non-white-space on this line.
550 1: Only seen white space so far on this line.
551 2: Only seen white space so far in this file. */
552 unsigned char only_seen_white;
554 /* True after cpp_start_read completes. Used to inhibit some
555 warnings while parsing the command line. */
556 unsigned char done_initializing;
558 /* True if we are skipping a failed conditional group. */
559 unsigned char skipping;
562 /* struct cpp_printer encapsulates state used to convert the stream of
563 tokens coming from cpp_get_token back into a text file. Not
564 everyone wants to do that, hence we separate the function. */
568 FILE *outf; /* stream to write to */
569 const char *last_fname; /* previous file name */
570 unsigned int last_bsd; /* did we just push? */
571 unsigned int lineno; /* line currently being written */
572 unsigned int written; /* low water mark in token buffer */
575 #define CPP_FATAL_LIMIT 1000
576 /* True if we have seen a "fatal" error. */
577 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
579 /* Macros for manipulating the token_buffer. */
581 /* Number of characters currently in PFILE's output buffer. */
582 #define CPP_WRITTEN(PFILE) ((size_t)((PFILE)->limit - (PFILE)->token_buffer))
583 #define CPP_PWRITTEN(PFILE) ((PFILE)->limit)
584 #define CPP_ADJUST_WRITTEN(PFILE,DELTA) ((PFILE)->limit += (DELTA))
585 #define CPP_SET_WRITTEN(PFILE,N) ((PFILE)->limit = (PFILE)->token_buffer + (N))
587 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION)
588 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
589 #define CPP_BUF_LINE(BUF) ((BUF)->lineno)
590 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base + pfile->col_adjust)
591 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur)
593 /* Name under which this program was invoked. */
594 extern const char *progname;
596 /* The structure of a node in the hash table. The hash table
597 has entries for all tokens defined by #define commands (type T_MACRO),
598 plus some special tokens like __LINE__ (these each have their own
599 type, and the appropriate code is run when that type of node is seen.
600 It does not contain control words like "#define", which are recognized
601 by a separate piece of code. */
603 /* different flavors of hash nodes */
606 T_VOID = 0, /* no definition yet */
607 T_SPECLINE, /* `__LINE__' */
608 T_DATE, /* `__DATE__' */
609 T_FILE, /* `__FILE__' */
610 T_BASE_FILE, /* `__BASE_FILE__' */
611 T_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
612 T_TIME, /* `__TIME__' */
613 T_STDC, /* `__STDC__' */
614 T_CONST, /* Constant string, used by `__SIZE_TYPE__' etc */
615 T_XCONST, /* Ditto, but the string is malloced memory */
616 T_POISON, /* poisoned identifier */
617 T_MACRO, /* object-like macro */
618 T_FMACRO, /* function-like macro */
619 T_IDENTITY, /* macro defined to itself */
620 T_EMPTY, /* macro defined to nothing */
621 T_ASSERTION /* predicate for #assert */
624 /* There is a slot in the hashnode for use by front ends when integrated
625 with cpplib. It holds a tree (see tree.h) but we mustn't drag that
626 header into every user of cpplib.h. cpplib does not do anything with
627 this slot except clear it when a new node is created. */
632 unsigned int hash; /* cached hash value */
633 unsigned short length; /* length of name */
634 ENUM_BITFIELD(node_type) type : 8; /* node type */
635 char disabled; /* macro turned off for rescan? */
638 const unsigned char *cpval; /* some predefined macros */
639 const struct object_defn *odefn; /* #define foo bar */
640 const struct funct_defn *fdefn; /* #define foo(x) bar(x) */
641 struct predicate *pred; /* #assert */
644 union tree_node *fe_value; /* front end value */
646 const unsigned char name[1]; /* name[length] */
651 extern void _cpp_lex_file PARAMS((cpp_reader *));
652 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
653 extern enum cpp_ttype cpp_get_token PARAMS ((cpp_reader *));
654 extern enum cpp_ttype cpp_get_non_space_token PARAMS ((cpp_reader *));
656 extern void cpp_reader_init PARAMS ((cpp_reader *));
657 extern cpp_printer *cpp_printer_init PARAMS ((cpp_reader *, cpp_printer *));
658 extern int cpp_start_read PARAMS ((cpp_reader *, cpp_printer *, const char *));
659 extern void cpp_output_tokens PARAMS ((cpp_reader *, cpp_printer *));
660 extern void cpp_output_list PARAMS ((cpp_reader *, cpp_printer *,
661 const cpp_toklist *));
662 extern void cpp_finish PARAMS ((cpp_reader *, cpp_printer *));
663 extern void cpp_cleanup PARAMS ((cpp_reader *));
665 extern cpp_buffer *cpp_file_buffer PARAMS((cpp_reader *));
666 extern void cpp_define PARAMS ((cpp_reader *, const char *));
667 extern void cpp_assert PARAMS ((cpp_reader *, const char *));
668 extern void cpp_undef PARAMS ((cpp_reader *, const char *));
669 extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
671 extern void cpp_free_token_list PARAMS ((cpp_toklist *));
673 /* N.B. The error-message-printer prototypes have not been nicely
674 formatted because exgettext needs to see 'msgid' on the same line
675 as the name of the function in order to work properly. Only the
676 string argument gets a name in an effort to keep the lines from
677 getting ridiculously oversized. */
679 extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
681 extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
683 extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
685 extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
687 extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
689 extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
691 extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
693 extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
695 extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
697 extern void cpp_pedwarn_with_file_and_line PARAMS ((cpp_reader *, const char *, int, int, const char *msgid, ...))
699 extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
700 extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
703 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
704 const unsigned char *, long));
705 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
706 extern void cpp_scan_buffer PARAMS ((cpp_reader *, cpp_printer *));
707 extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *));
708 extern int cpp_idcmp PARAMS ((const unsigned char *,
709 size_t, const char *));
712 extern int cpp_defined PARAMS ((cpp_reader *,
713 const unsigned char *, int));
714 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
715 const unsigned char *, int));
718 extern int cpp_included PARAMS ((cpp_reader *, const char *));
719 extern int cpp_read_file PARAMS ((cpp_reader *, const char *));
724 #endif /* __GCC_CPPLIB__ */