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 /* For complex reasons, cpp_reader is also typedefed in c-pragma.h. */
33 typedef struct cpp_reader cpp_reader;
35 typedef struct cpp_buffer cpp_buffer;
36 typedef struct cpp_options cpp_options;
37 typedef struct cpp_token cpp_token;
38 typedef struct cpp_string cpp_string;
39 typedef struct cpp_hashnode cpp_hashnode;
40 typedef struct cpp_pool cpp_pool;
41 typedef struct cpp_macro cpp_macro;
42 typedef struct cpp_lexer_pos cpp_lexer_pos;
43 typedef struct cpp_lookahead cpp_lookahead;
45 struct directive; /* These are deliberately incomplete. */
50 struct file_name_map_list;
53 /* The first two groups, apart from '=', can appear in preprocessor
54 expressions. This allows a lookup table to be implemented in
57 The first group, to CPP_LAST_EQ, can be immediately followed by an
58 '='. The lexer needs operators ending in '=', like ">>=", to be in
59 the same order as their counterparts without the '=', like ">>". */
61 /* Positions in the table. */
62 #define CPP_LAST_EQ CPP_MAX
63 #define CPP_FIRST_DIGRAPH CPP_HASH
64 #define CPP_LAST_PUNCTUATOR CPP_DOT_STAR
69 OP(CPP_GREATER, ">") /* compare */ \
71 OP(CPP_PLUS, "+") /* math */ \
76 OP(CPP_AND, "&") /* bit ops */ \
79 OP(CPP_RSHIFT, ">>") \
80 OP(CPP_LSHIFT, "<<") \
81 OP(CPP_MIN, "<?") /* extension */ \
85 OP(CPP_AND_AND, "&&") /* logical */ \
89 OP(CPP_COMMA, ",") /* grouping */ \
90 OP(CPP_OPEN_PAREN, "(") \
91 OP(CPP_CLOSE_PAREN, ")") \
92 OP(CPP_EQ_EQ, "==") /* compare */ \
93 OP(CPP_NOT_EQ, "!=") \
94 OP(CPP_GREATER_EQ, ">=") \
95 OP(CPP_LESS_EQ, "<=") \
97 OP(CPP_PLUS_EQ, "+=") /* math */ \
98 OP(CPP_MINUS_EQ, "-=") \
99 OP(CPP_MULT_EQ, "*=") \
100 OP(CPP_DIV_EQ, "/=") \
101 OP(CPP_MOD_EQ, "%=") \
102 OP(CPP_AND_EQ, "&=") /* bit ops */ \
103 OP(CPP_OR_EQ, "|=") \
104 OP(CPP_XOR_EQ, "^=") \
105 OP(CPP_RSHIFT_EQ, ">>=") \
106 OP(CPP_LSHIFT_EQ, "<<=") \
107 OP(CPP_MIN_EQ, "<?=") /* extension */ \
108 OP(CPP_MAX_EQ, ">?=") \
109 /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \
110 OP(CPP_HASH, "#") /* digraphs */ \
111 OP(CPP_PASTE, "##") \
112 OP(CPP_OPEN_SQUARE, "[") \
113 OP(CPP_CLOSE_SQUARE, "]") \
114 OP(CPP_OPEN_BRACE, "{") \
115 OP(CPP_CLOSE_BRACE, "}") \
116 /* The remainder of the punctuation. Order is not significant. */ \
117 OP(CPP_SEMICOLON, ";") /* structure */ \
118 OP(CPP_ELLIPSIS, "...") \
119 OP(CPP_PLUS_PLUS, "++") /* increment */ \
120 OP(CPP_MINUS_MINUS, "--") \
121 OP(CPP_DEREF, "->") /* accessors */ \
123 OP(CPP_SCOPE, "::") \
124 OP(CPP_DEREF_STAR, "->*") \
125 OP(CPP_DOT_STAR, ".*") \
127 TK(CPP_NAME, SPELL_IDENT) /* word */ \
128 TK(CPP_INT, SPELL_STRING) /* 23 */ \
129 TK(CPP_FLOAT, SPELL_STRING) /* 3.14159 */ \
130 TK(CPP_NUMBER, SPELL_STRING) /* 34_be+ta */ \
132 TK(CPP_CHAR, SPELL_STRING) /* 'char' */ \
133 TK(CPP_WCHAR, SPELL_STRING) /* L'char' */ \
134 TK(CPP_OTHER, SPELL_CHAR) /* stray punctuation */ \
136 TK(CPP_STRING, SPELL_STRING) /* "string" */ \
137 TK(CPP_WSTRING, SPELL_STRING) /* L"string" */ \
138 TK(CPP_OSTRING, SPELL_STRING) /* @"string" - Objective C */ \
139 TK(CPP_HEADER_NAME, SPELL_STRING) /* <stdio.h> in #include */ \
141 TK(CPP_COMMENT, SPELL_STRING) /* Only if output comments. */ \
142 TK(CPP_MACRO_ARG, SPELL_NONE) /* Macro argument. */ \
143 OP(CPP_EOF, "EOL") /* End of line or file. */
155 /* Multiple-include optimisation. */
156 enum mi_state {MI_FAILED = 0, MI_OUTSIDE};
157 enum mi_ind {MI_IND_NONE = 0, MI_IND_NOT};
159 /* Payload of a NUMBER, FLOAT, STRING, or COMMENT token. */
163 const unsigned char *text;
166 /* Flags for the cpp_token structure. */
167 #define PREV_WHITE (1 << 0) /* If whitespace before this token. */
168 #define DIGRAPH (1 << 1) /* If it was a digraph. */
169 #define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */
170 #define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */
171 #define NAMED_OP (1 << 4) /* C++ named operators, also "defined". */
172 #define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */
174 /* A preprocessing token. This has been carefully packed and should
175 occupy 12 bytes on 32-bit hosts and 16 bytes on 64-bit hosts. */
178 ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */
179 unsigned char flags; /* flags - see above */
183 struct cpp_hashnode *node; /* An identifier. */
184 struct cpp_string str; /* A string, or number. */
185 unsigned int arg_no; /* Argument no. for a CPP_MACRO_ARG. */
186 unsigned char c; /* Character represented by CPP_OTHER. */
190 /* The position of a token in the current file. */
194 unsigned int output_line;
198 typedef struct cpp_token_with_pos cpp_token_with_pos;
199 struct cpp_token_with_pos
205 /* Token lookahead. */
208 struct cpp_lookahead *next;
209 cpp_token_with_pos *tokens;
211 unsigned int cur, count, cap;
217 struct cpp_chunk *cur, *locked;
218 unsigned char *pos; /* Current position. */
223 typedef struct toklist toklist;
230 typedef struct cpp_context cpp_context;
233 /* Doubly-linked list. */
234 cpp_context *next, *prev;
236 /* Contexts other than the base context are contiguous tokens.
237 e.g. macro expansions, expanded argument tokens. */
240 /* For a macro context, these are the macro and its arguments. */
244 /* A standalone character. We may want to make it unsigned for the
245 same reason we use unsigned char - to avoid signedness issues. */
246 typedef int cppchar_t;
250 const unsigned char *cur; /* current position */
251 const unsigned char *rlimit; /* end of valid data */
252 const unsigned char *line_base; /* start of current line */
253 cppchar_t read_ahead; /* read ahead character */
254 cppchar_t extra_char; /* extra read-ahead for long tokens. */
256 struct cpp_reader *pfile; /* Owns this buffer. */
257 struct cpp_buffer *prev;
259 const unsigned char *buf; /* entire buffer */
261 /* Filename specified with #line command. */
262 const char *nominal_fname;
264 /* Actual directory of this file, used only for "" includes */
265 struct file_name_list *actual_dir;
267 /* Pointer into the include table. Used for include_next and
268 to record control macros. */
269 struct include_file *inc;
271 /* Value of if_stack at start of this file.
272 Used to prohibit unmatched #endif (etc) in an include file. */
273 struct if_stack *if_stack;
275 /* Token column position adjustment owing to tabs in whitespace. */
276 unsigned int col_adjust;
278 /* Line number at line_base (above). */
281 /* True if we have already warned about C++ comments in this file.
282 The warning happens only for C89 extended mode with -pedantic on,
283 or for -Wtraditional, and only once per file (otherwise it would
284 be far too noisy). */
285 unsigned char warned_cplusplus_comments;
287 /* True if we don't process trigraphs and escaped newlines. True
288 for preprocessed input, command line directives, and _Pragma
290 unsigned char from_stage3;
292 /* Temporary storage for pfile->skipping whilst in a directive. */
293 unsigned char was_skipping;
296 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
297 efficiency, and partly to limit runaway recursion. */
298 #define CPP_STACK_MAX 200
300 /* Values for opts.dump_macros.
301 dump_only means inhibit output of the preprocessed text
302 and instead output the definitions of all user-defined
303 macros in a form suitable for use as input to cpp.
304 dump_names means pass #define and the macro name through to output.
305 dump_definitions means pass the whole definition (plus #define) through
307 enum { dump_none = 0, dump_only, dump_names, dump_definitions };
309 /* This structure is nested inside struct cpp_reader, and
310 carries all the options visible to the command line. */
313 /* Name of input and output files. */
314 const char *in_fname;
315 const char *out_fname;
317 /* Characters between tab stops. */
318 unsigned int tabstop;
320 /* Pending options - -D, -U, -A, -I, -ixxx. */
321 struct cpp_pending *pending;
323 /* File name which deps are being written to. This is 0 if deps are
324 being written to stdout. */
325 const char *deps_file;
327 /* Target-name to write with the dependency information. */
330 /* Search paths for include files. */
331 struct file_name_list *quote_include; /* First dir to search for "file" */
332 struct file_name_list *bracket_include;/* First dir to search for <file> */
334 /* Map between header names and file names, used only on DOS where
335 file names are limited in length. */
336 struct file_name_map_list *map_list;
338 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
339 in the standard include file directories. */
340 const char *include_prefix;
341 unsigned int include_prefix_len;
343 /* -fleading_underscore sets this to "_". */
344 const char *user_label_prefix;
346 /* Non-0 means -v, so print the full set of include dirs. */
347 unsigned char verbose;
349 /* Nonzero means use extra default include directories for C++. */
350 unsigned char cplusplus;
352 /* Nonzero means handle cplusplus style comments */
353 unsigned char cplusplus_comments;
355 /* Nonzero means handle #import, for objective C. */
358 /* Nonzero means this is an assembly file, so ignore unrecognized
359 directives and the "# 33" form of #line, both of which are
360 probably comments. Also, permit unbalanced ' strings (again,
361 likely to be in comments). */
362 unsigned char lang_asm;
364 /* Nonzero means don't copy comments into the output file. */
365 unsigned char discard_comments;
367 /* Nonzero means process the ISO trigraph sequences. */
368 unsigned char trigraphs;
370 /* Nonzero means process the ISO digraph sequences. */
371 unsigned char digraphs;
373 /* Nonzero means print the names of included files rather than the
374 preprocessed output. 1 means just the #include "...", 2 means
375 #include <...> as well. */
376 unsigned char print_deps;
378 /* Nonzero if missing .h files in -M output are assumed to be
379 generated files and not errors. */
380 unsigned char print_deps_missing_files;
382 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
383 unsigned char print_deps_append;
385 /* Nonzero means print names of header files (-H). */
386 unsigned char print_include_names;
388 /* Nonzero means cpp_pedwarn causes a hard error. */
389 unsigned char pedantic_errors;
391 /* Nonzero means don't print warning messages. */
392 unsigned char inhibit_warnings;
394 /* Nonzero means don't suppress warnings from system headers. */
395 unsigned char warn_system_headers;
397 /* Nonzero means don't print error messages. Has no option to
398 select it, but can be set by a user of cpplib (e.g. fix-header). */
399 unsigned char inhibit_errors;
401 /* Nonzero means warn if slash-star appears in a comment. */
402 unsigned char warn_comments;
404 /* Nonzero means warn if there are any trigraphs. */
405 unsigned char warn_trigraphs;
407 /* Nonzero means warn if #import is used. */
408 unsigned char warn_import;
410 /* Nonzero means warn about various incompatibilities with
412 unsigned char warn_traditional;
414 /* Nonzero means warn if ## is applied to two tokens that cannot be
416 unsigned char warn_paste;
418 /* Nonzero means turn warnings into errors. */
419 unsigned char warnings_are_errors;
421 /* Nonzero causes output not to be done, but directives such as
422 #define that have side effects are still obeyed. */
423 unsigned char no_output;
425 /* Nonzero means we should look for header.gcc files that remap file
429 /* Nonzero means don't output line number information. */
430 unsigned char no_line_commands;
432 /* Nonzero means -I- has been seen, so don't look for #include "foo"
433 the source-file directory. */
434 unsigned char ignore_srcdir;
436 /* Zero means dollar signs are punctuation. */
437 unsigned char dollars_in_ident;
439 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
440 unsigned char warn_undef;
442 /* Nonzero for the 1989 C Standard, including corrigenda and amendments. */
445 /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */
448 /* Nonzero means give all the error messages the ANSI standard requires. */
449 unsigned char pedantic;
451 /* Nonzero means we're looking at already preprocessed code, so don't
452 bother trying to do macro expansion and whatnot. */
453 unsigned char preprocessed;
455 /* Nonzero disables all the standard directories for headers. */
456 unsigned char no_standard_includes;
458 /* Nonzero disables the C++-specific standard directories for headers. */
459 unsigned char no_standard_cplusplus_includes;
461 /* Nonzero means dump macros in some fashion - see above. */
462 unsigned char dump_macros;
464 /* Nonzero means pass all #define and #undef directives which we
465 actually process through to the output stream. This feature is
466 used primarily to allow cc1 to record the #defines and #undefs
467 for the sake of debuggers which understand about preprocessor
468 macros, but it may also be useful with -E to figure out how
469 symbols are defined, and where they are defined. */
470 unsigned char debug_output;
472 /* Nonzero means pass #include lines through to the output. */
473 unsigned char dump_includes;
475 /* Print column number in error messages. */
476 unsigned char show_column;
481 /* Nonzero if first token on line is CPP_HASH. */
482 unsigned char in_directive;
484 /* Nonzero if in a directive that takes angle-bracketed headers. */
485 unsigned char angled_headers;
487 /* Nonzero to save comments. Turned off if discard_comments, and in
488 all directives apart from #define. */
489 unsigned char save_comments;
491 /* If nonzero the next token is at the beginning of the line. */
492 unsigned char next_bol;
494 /* Nonzero if we're mid-comment. */
495 unsigned char lexing_comment;
497 /* Nonzero if lexing __VA_ARGS__ is valid. */
498 unsigned char va_args_ok;
500 /* Nonzero if lexing poisoned identifiers is valid. */
501 unsigned char poisoned_ok;
503 /* Nonzero to prevent macro expansion. */
504 unsigned char prevent_expansion;
506 /* Nonzero when parsing arguments to a function-like macro. */
507 unsigned char parsing_args;
510 /* Special nodes - identifiers with predefined significance. */
513 cpp_hashnode *n_L; /* L"str" */
514 cpp_hashnode *n_defined; /* defined operator */
515 cpp_hashnode *n__Pragma; /* _Pragma operator */
516 cpp_hashnode *n__STRICT_ANSI__; /* STDC_0_IN_SYSTEM_HEADERS */
517 cpp_hashnode *n__CHAR_UNSIGNED__; /* plain char is unsigned */
518 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */
521 /* a cpp_reader encapsulates the "state" of a pre-processor run.
522 Applying cpp_get_token repeatedly yields a stream of pre-processor
523 tokens. Usually, there is only one cpp_reader object active. */
527 /* Top of buffer stack. */
531 struct lexer_state state;
533 /* The position of the last lexed token, last lexed directive, and
534 last macro invocation. */
535 cpp_lexer_pos lexer_pos;
536 cpp_lexer_pos macro_pos;
537 cpp_lexer_pos directive_pos;
540 cpp_pool ident_pool; /* For all identifiers, and permanent
541 numbers and strings. */
542 cpp_pool temp_string_pool; /* For temporary numbers and strings. */
543 cpp_pool macro_pool; /* For macro definitions. Permanent. */
544 cpp_pool argument_pool; /* For macro arguments. Temporary. */
545 cpp_pool* string_pool; /* Either temp_string_pool or ident_pool. */
548 struct cpp_context base_context;
549 struct cpp_context *context;
551 /* If in_directive, the directive if known. */
552 const struct directive *directive;
554 /* Multiple inlcude optimisation. */
555 enum mi_state mi_state;
556 enum mi_ind mi_if_not_defined;
557 unsigned int mi_lexed;
558 const cpp_hashnode *mi_cmacro;
559 const cpp_hashnode *mi_ind_cmacro;
561 /* Token lookahead. */
562 struct cpp_lookahead *la_read; /* Read from this lookahead. */
563 struct cpp_lookahead *la_write; /* Write to this lookahead. */
564 struct cpp_lookahead *la_unused; /* Free store. */
565 struct cpp_lookahead *la_saved; /* Backup when entering directive. */
567 /* Error counter for exit code. */
570 /* Line and column where a newline was first seen in a string
571 constant (multi-line strings). */
572 cpp_lexer_pos mlstring_pos;
574 /* Buffer to hold macro definition string. */
575 unsigned char *macro_buffer;
576 unsigned int macro_buffer_len;
578 /* Current depth in #include directives that use <...>. */
579 unsigned int system_include_depth;
581 /* Current depth of buffer stack. */
582 unsigned int buffer_stack_depth;
584 /* Current depth in #include directives. */
585 unsigned int include_depth;
587 /* Hash table of macros and assertions. See cpphash.c. */
588 struct htab *hashtab;
590 /* Tree of other included files. See cppfiles.c. */
591 struct splay_tree_s *all_include_files;
593 /* Chain of `actual directory' file_name_list entries, for ""
595 struct file_name_list *actual_dirs;
597 /* Current maximum length of directory names in the search path
598 for include files. (Altered as we get more of them.) */
599 unsigned int max_include_len;
601 /* Date and time tokens. Calculated together if either is requested. */
605 /* Buffer of -M output. */
608 /* Obstack holding all macro hash nodes. This never shrinks.
610 struct obstack *hash_ob;
612 /* Obstack holding buffer and conditional structures. This is a
613 real stack. See cpplib.c */
614 struct obstack *buffer_ob;
616 /* Pragma table - dynamic, because a library user can add to the
617 list of recognized pragmas. */
618 struct pragma_entry *pragmas;
622 void (*enter_file) PARAMS ((cpp_reader *));
623 void (*leave_file) PARAMS ((cpp_reader *));
624 void (*rename_file) PARAMS ((cpp_reader *));
625 void (*include) PARAMS ((cpp_reader *, const unsigned char *,
627 void (*define) PARAMS ((cpp_reader *, cpp_hashnode *));
628 void (*undef) PARAMS ((cpp_reader *, cpp_hashnode *));
629 void (*poison) PARAMS ((cpp_reader *));
630 void (*ident) PARAMS ((cpp_reader *, const cpp_string *));
631 void (*def_pragma) PARAMS ((cpp_reader *));
634 /* User visible options. */
635 struct cpp_options opts;
637 /* Special nodes - identifiers with predefined significance to the
639 struct spec_nodes spec_nodes;
641 /* Nonzero means we have printed (while error reporting) a list of
642 containing files that matches the current status. */
643 unsigned char input_stack_listing_current;
645 /* We're printed a warning recommending against using #import. */
646 unsigned char import_warning;
648 /* True after cpp_start_read completes. Used to inhibit some
649 warnings while parsing the command line. */
650 unsigned char done_initializing;
652 /* True if we are skipping a failed conditional group. */
653 unsigned char skipping;
656 #define CPP_FATAL_LIMIT 1000
657 /* True if we have seen a "fatal" error. */
658 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
660 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION)
661 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
662 #define CPP_BUF_LINE(BUF) ((BUF)->lineno)
663 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base + (BUF)->col_adjust)
664 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur)
666 /* Name under which this program was invoked. */
667 extern const char *progname;
669 /* The structure of a node in the hash table. The hash table has
670 entries for all identifiers: either macros defined by #define
671 commands (type NT_MACRO), assertions created with #assert
672 (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros
673 like __LINE__ are flagged NODE_BUILTIN. Poisioned identifiers are
674 flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an
675 identifier that behaves like an operator such as "xor".
676 NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
677 diagnostic may be required for this node. Currently this only
678 applies to __VA_ARGS__ and poisoned identifiers. */
680 /* Hash node flags. */
681 #define NODE_OPERATOR (1 << 0) /* C++ named operator. */
682 #define NODE_POISONED (1 << 1) /* Poisoned identifier. */
683 #define NODE_BUILTIN (1 << 2) /* Builtin macro. */
684 #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */
686 /* Different flavors of hash node. */
689 NT_VOID = 0, /* No definition yet. */
690 NT_MACRO, /* A macro of some form. */
691 NT_ASSERTION /* Predicate for #assert. */
694 /* Different flavors of builtin macro. */
697 BT_SPECLINE = 0, /* `__LINE__' */
698 BT_DATE, /* `__DATE__' */
699 BT_FILE, /* `__FILE__' */
700 BT_BASE_FILE, /* `__BASE_FILE__' */
701 BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
702 BT_TIME, /* `__TIME__' */
703 BT_STDC /* `__STDC__' */
706 /* There is a slot in the hashnode for use by front ends when integrated
707 with cpplib. It holds a tree (see tree.h) but we mustn't drag that
708 header into every user of cpplib.h. cpplib does not do anything with
709 this slot except clear it when a new node is created. */
714 const unsigned char *name; /* null-terminated name */
715 unsigned int hash; /* cached hash value */
716 unsigned short length; /* length of name excluding null */
717 unsigned short arg_index; /* macro argument index */
718 unsigned char directive_index; /* index into directive table. */
719 ENUM_BITFIELD(node_type) type : 8; /* node type. */
720 unsigned char flags; /* node flags. */
724 cpp_macro *macro; /* a macro. */
725 struct answer *answers; /* answers to an assertion. */
726 enum cpp_ttype operator; /* code for a named operator. */
727 enum builtin_type builtin; /* code for a builtin macro. */
730 union tree_node *fe_value; /* front end value */
733 extern unsigned int cpp_token_len PARAMS ((const cpp_token *));
734 extern unsigned char *cpp_token_as_text PARAMS ((cpp_reader *, const cpp_token *));
735 extern unsigned char *cpp_spell_token PARAMS ((cpp_reader *, const cpp_token *,
737 extern void cpp_init PARAMS ((void));
738 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
739 extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
740 extern void cpp_reader_init PARAMS ((cpp_reader *));
742 extern void cpp_register_pragma PARAMS ((cpp_reader *,
743 const char *, const char *,
744 void (*) PARAMS ((cpp_reader *))));
745 extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
747 extern int cpp_start_read PARAMS ((cpp_reader *, const char *));
748 extern void cpp_finish PARAMS ((cpp_reader *));
749 extern void cpp_cleanup PARAMS ((cpp_reader *));
750 extern int cpp_avoid_paste PARAMS ((cpp_reader *, const cpp_token *,
752 extern enum cpp_ttype cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *,
753 const cpp_token *, int *));
754 extern void cpp_get_token PARAMS ((cpp_reader *, cpp_token *));
755 extern const cpp_lexer_pos *cpp_get_line PARAMS ((cpp_reader *));
756 extern const unsigned char *cpp_macro_definition PARAMS ((cpp_reader *,
757 const cpp_hashnode *));
759 extern void cpp_define PARAMS ((cpp_reader *, const char *));
760 extern void cpp_assert PARAMS ((cpp_reader *, const char *));
761 extern void cpp_undef PARAMS ((cpp_reader *, const char *));
762 extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
764 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
765 const unsigned char *, long));
766 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
767 extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
769 /* N.B. The error-message-printer prototypes have not been nicely
770 formatted because exgettext needs to see 'msgid' on the same line
771 as the name of the function in order to work properly. Only the
772 string argument gets a name in an effort to keep the lines from
773 getting ridiculously oversized. */
775 extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
777 extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
779 extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
781 extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
783 extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
785 extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
787 extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
789 extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
791 extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
793 extern void cpp_pedwarn_with_file_and_line PARAMS ((cpp_reader *, const char *, int, int, const char *msgid, ...))
795 extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
796 extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
799 extern int cpp_ideq PARAMS ((const cpp_token *,
801 extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
802 extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
803 extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
806 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
807 const unsigned char *, size_t));
808 extern void cpp_forall_identifiers PARAMS ((cpp_reader *,
809 int (*) PARAMS ((cpp_reader *,
815 extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *));
816 extern void cpp_start_lookahead PARAMS ((cpp_reader *));
817 extern void cpp_stop_lookahead PARAMS ((cpp_reader *, int));
820 extern int cpp_included PARAMS ((cpp_reader *, const char *));
821 extern int cpp_read_file PARAMS ((cpp_reader *, const char *));
822 extern void cpp_make_system_header PARAMS ((cpp_reader *, cpp_buffer *, int));
823 extern const char *cpp_syshdr_flags PARAMS ((cpp_reader *, cpp_buffer *));
825 /* These are inline functions instead of macros so we can get type
827 typedef unsigned char U_CHAR;
828 #define U (const U_CHAR *) /* Intended use: U"string" */
830 static inline int ustrcmp PARAMS ((const U_CHAR *, const U_CHAR *));
831 static inline int ustrncmp PARAMS ((const U_CHAR *, const U_CHAR *,
833 static inline size_t ustrlen PARAMS ((const U_CHAR *));
834 static inline U_CHAR *uxstrdup PARAMS ((const U_CHAR *));
835 static inline U_CHAR *ustrchr PARAMS ((const U_CHAR *, int));
836 static inline int ufputs PARAMS ((const U_CHAR *, FILE *));
840 const U_CHAR *s1, *s2;
842 return strcmp ((const char *)s1, (const char *)s2);
847 const U_CHAR *s1, *s2;
850 return strncmp ((const char *)s1, (const char *)s2, n);
857 return strlen ((const char *)s1);
860 static inline U_CHAR *
864 return (U_CHAR *) xstrdup ((const char *)s1);
867 static inline U_CHAR *
872 return (U_CHAR *) strchr ((const char *)s1, c);
880 return fputs ((const char *)s, f);
886 #endif /* __GCC_CPPLIB__ */