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 /* C language kind, used when calling cpp_reader_init. */
156 enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99,
157 CLK_GNUCXX, CLK_CXX98, CLK_OBJC, CLK_OBJCXX, CLK_ASM};
159 /* Multiple-include optimisation. */
160 enum mi_state {MI_FAILED = 0, MI_OUTSIDE};
161 enum mi_ind {MI_IND_NONE = 0, MI_IND_NOT};
163 /* Payload of a NUMBER, FLOAT, STRING, or COMMENT token. */
167 const unsigned char *text;
170 /* Flags for the cpp_token structure. */
171 #define PREV_WHITE (1 << 0) /* If whitespace before this token. */
172 #define DIGRAPH (1 << 1) /* If it was a digraph. */
173 #define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */
174 #define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */
175 #define NAMED_OP (1 << 4) /* C++ named operators. */
176 #define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */
178 /* A preprocessing token. This has been carefully packed and should
179 occupy 12 bytes on 32-bit hosts and 16 bytes on 64-bit hosts. */
182 ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */
183 unsigned char flags; /* flags - see above */
187 struct cpp_hashnode *node; /* An identifier. */
188 struct cpp_string str; /* A string, or number. */
189 unsigned int arg_no; /* Argument no. for a CPP_MACRO_ARG. */
190 unsigned char c; /* Character represented by CPP_OTHER. */
194 /* The position of a token in the current file. */
198 unsigned int output_line;
202 typedef struct cpp_token_with_pos cpp_token_with_pos;
203 struct cpp_token_with_pos
209 /* Token lookahead. */
212 struct cpp_lookahead *next;
213 cpp_token_with_pos *tokens;
215 unsigned int cur, count, cap;
221 struct cpp_chunk *cur, *locked;
222 unsigned char *pos; /* Current position. */
227 typedef struct toklist toklist;
234 typedef struct cpp_context cpp_context;
237 /* Doubly-linked list. */
238 cpp_context *next, *prev;
240 /* Contexts other than the base context are contiguous tokens.
241 e.g. macro expansions, expanded argument tokens. */
244 /* For a macro context, these are the macro and its arguments. */
248 /* A standalone character. We may want to make it unsigned for the
249 same reason we use unsigned char - to avoid signedness issues. */
250 typedef int cppchar_t;
254 const unsigned char *cur; /* current position */
255 const unsigned char *rlimit; /* end of valid data */
256 const unsigned char *line_base; /* start of current line */
257 cppchar_t read_ahead; /* read ahead character */
258 cppchar_t extra_char; /* extra read-ahead for long tokens. */
260 struct cpp_reader *pfile; /* Owns this buffer. */
261 struct cpp_buffer *prev;
263 const unsigned char *buf; /* entire buffer */
265 /* Filename specified with #line command. */
266 const char *nominal_fname;
268 /* Actual directory of this file, used only for "" includes */
269 struct file_name_list *actual_dir;
271 /* Pointer into the include table. Used for include_next and
272 to record control macros. */
273 struct include_file *inc;
275 /* Value of if_stack at start of this file.
276 Used to prohibit unmatched #endif (etc) in an include file. */
277 struct if_stack *if_stack;
279 /* Token column position adjustment owing to tabs in whitespace. */
280 unsigned int col_adjust;
282 /* Line number at line_base (above). */
285 /* True if we have already warned about C++ comments in this file.
286 The warning happens only for C89 extended mode with -pedantic on,
287 or for -Wtraditional, and only once per file (otherwise it would
288 be far too noisy). */
289 unsigned char warned_cplusplus_comments;
291 /* True if we don't process trigraphs and escaped newlines. True
292 for preprocessed input, command line directives, and _Pragma
294 unsigned char from_stage3;
296 /* Temporary storage for pfile->skipping whilst in a directive. */
297 unsigned char was_skipping;
300 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
301 efficiency, and partly to limit runaway recursion. */
302 #define CPP_STACK_MAX 200
304 /* Values for opts.dump_macros.
305 dump_only means inhibit output of the preprocessed text
306 and instead output the definitions of all user-defined
307 macros in a form suitable for use as input to cpp.
308 dump_names means pass #define and the macro name through to output.
309 dump_definitions means pass the whole definition (plus #define) through
311 enum { dump_none = 0, dump_only, dump_names, dump_definitions };
313 /* This structure is nested inside struct cpp_reader, and
314 carries all the options visible to the command line. */
317 /* Name of input and output files. */
318 const char *in_fname;
319 const char *out_fname;
321 /* Characters between tab stops. */
322 unsigned int tabstop;
324 /* Pending options - -D, -U, -A, -I, -ixxx. */
325 struct cpp_pending *pending;
327 /* File name which deps are being written to. This is 0 if deps are
328 being written to stdout. */
329 const char *deps_file;
331 /* Target-name to write with the dependency information. */
334 /* Search paths for include files. */
335 struct file_name_list *quote_include; /* First dir to search for "file" */
336 struct file_name_list *bracket_include;/* First dir to search for <file> */
338 /* Map between header names and file names, used only on DOS where
339 file names are limited in length. */
340 struct file_name_map_list *map_list;
342 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
343 in the standard include file directories. */
344 const char *include_prefix;
345 unsigned int include_prefix_len;
347 /* -fleading_underscore sets this to "_". */
348 const char *user_label_prefix;
350 /* Non-0 means -v, so print the full set of include dirs. */
351 unsigned char verbose;
353 /* Nonzero means use extra default include directories for C++. */
354 unsigned char cplusplus;
356 /* Nonzero means handle cplusplus style comments */
357 unsigned char cplusplus_comments;
359 /* Nonzero means handle #import, for objective C. */
362 /* Nonzero means this is an assembly file, so ignore unrecognized
363 directives and the "# 33" form of #line, both of which are
364 probably comments. Also, permit unbalanced ' strings (again,
365 likely to be in comments). */
366 unsigned char lang_asm;
368 /* Nonzero means don't copy comments into the output file. */
369 unsigned char discard_comments;
371 /* Nonzero means process the ISO trigraph sequences. */
372 unsigned char trigraphs;
374 /* Nonzero means process the ISO digraph sequences. */
375 unsigned char digraphs;
377 /* Nonzero means print the names of included files rather than the
378 preprocessed output. 1 means just the #include "...", 2 means
379 #include <...> as well. */
380 unsigned char print_deps;
382 /* Nonzero if missing .h files in -M output are assumed to be
383 generated files and not errors. */
384 unsigned char print_deps_missing_files;
386 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
387 unsigned char print_deps_append;
389 /* Nonzero means print names of header files (-H). */
390 unsigned char print_include_names;
392 /* Nonzero means cpp_pedwarn causes a hard error. */
393 unsigned char pedantic_errors;
395 /* Nonzero means don't print warning messages. */
396 unsigned char inhibit_warnings;
398 /* Nonzero means don't suppress warnings from system headers. */
399 unsigned char warn_system_headers;
401 /* Nonzero means don't print error messages. Has no option to
402 select it, but can be set by a user of cpplib (e.g. fix-header). */
403 unsigned char inhibit_errors;
405 /* Nonzero means warn if slash-star appears in a comment. */
406 unsigned char warn_comments;
408 /* Nonzero means warn if there are any trigraphs. */
409 unsigned char warn_trigraphs;
411 /* Nonzero means warn if #import is used. */
412 unsigned char warn_import;
414 /* Nonzero means warn about various incompatibilities with
416 unsigned char warn_traditional;
418 /* Nonzero means warn if ## is applied to two tokens that cannot be
420 unsigned char warn_paste;
422 /* Nonzero means turn warnings into errors. */
423 unsigned char warnings_are_errors;
425 /* Nonzero causes output not to be done, but directives such as
426 #define that have side effects are still obeyed. */
427 unsigned char no_output;
429 /* Nonzero means we should look for header.gcc files that remap file
433 /* Nonzero means don't output line number information. */
434 unsigned char no_line_commands;
436 /* Nonzero means -I- has been seen, so don't look for #include "foo"
437 the source-file directory. */
438 unsigned char ignore_srcdir;
440 /* Zero means dollar signs are punctuation. */
441 unsigned char dollars_in_ident;
443 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
444 unsigned char warn_undef;
446 /* Nonzero for the 1989 C Standard, including corrigenda and amendments. */
449 /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */
452 /* Nonzero means give all the error messages the ANSI standard requires. */
453 unsigned char pedantic;
455 /* Nonzero means we're looking at already preprocessed code, so don't
456 bother trying to do macro expansion and whatnot. */
457 unsigned char preprocessed;
459 /* Nonzero disables all the standard directories for headers. */
460 unsigned char no_standard_includes;
462 /* Nonzero disables the C++-specific standard directories for headers. */
463 unsigned char no_standard_cplusplus_includes;
465 /* Nonzero means dump macros in some fashion - see above. */
466 unsigned char dump_macros;
468 /* Nonzero means pass all #define and #undef directives which we
469 actually process through to the output stream. This feature is
470 used primarily to allow cc1 to record the #defines and #undefs
471 for the sake of debuggers which understand about preprocessor
472 macros, but it may also be useful with -E to figure out how
473 symbols are defined, and where they are defined. */
474 unsigned char debug_output;
476 /* Nonzero means pass #include lines through to the output. */
477 unsigned char dump_includes;
479 /* Print column number in error messages. */
480 unsigned char show_column;
485 /* Nonzero if first token on line is CPP_HASH. */
486 unsigned char in_directive;
488 /* Nonzero if in a directive that takes angle-bracketed headers. */
489 unsigned char angled_headers;
491 /* Nonzero to save comments. Turned off if discard_comments, and in
492 all directives apart from #define. */
493 unsigned char save_comments;
495 /* If nonzero the next token is at the beginning of the line. */
496 unsigned char next_bol;
498 /* Nonzero if we're mid-comment. */
499 unsigned char lexing_comment;
501 /* Nonzero if lexing __VA_ARGS__ is valid. */
502 unsigned char va_args_ok;
504 /* Nonzero if lexing poisoned identifiers is valid. */
505 unsigned char poisoned_ok;
507 /* Nonzero to prevent macro expansion. */
508 unsigned char prevent_expansion;
510 /* Nonzero when parsing arguments to a function-like macro. */
511 unsigned char parsing_args;
514 /* Special nodes - identifiers with predefined significance. */
517 cpp_hashnode *n_L; /* L"str" */
518 cpp_hashnode *n_defined; /* defined operator */
519 cpp_hashnode *n__Pragma; /* _Pragma operator */
520 cpp_hashnode *n__STRICT_ANSI__; /* STDC_0_IN_SYSTEM_HEADERS */
521 cpp_hashnode *n__CHAR_UNSIGNED__; /* plain char is unsigned */
522 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */
525 /* A cpp_reader encapsulates the "state" of a pre-processor run.
526 Applying cpp_get_token repeatedly yields a stream of pre-processor
527 tokens. Usually, there is only one cpp_reader object active. */
531 /* Top of buffer stack. */
535 struct lexer_state state;
537 /* The position of the last lexed token, last lexed directive, and
538 last macro invocation. */
539 cpp_lexer_pos lexer_pos;
540 cpp_lexer_pos macro_pos;
541 cpp_lexer_pos directive_pos;
544 cpp_pool ident_pool; /* For all identifiers, and permanent
545 numbers and strings. */
546 cpp_pool temp_string_pool; /* For temporary numbers and strings. */
547 cpp_pool macro_pool; /* For macro definitions. Permanent. */
548 cpp_pool argument_pool; /* For macro arguments. Temporary. */
549 cpp_pool* string_pool; /* Either temp_string_pool or ident_pool. */
552 struct cpp_context base_context;
553 struct cpp_context *context;
555 /* If in_directive, the directive if known. */
556 const struct directive *directive;
558 /* Multiple inlcude optimisation. */
559 enum mi_state mi_state;
560 enum mi_ind mi_if_not_defined;
561 unsigned int mi_lexed;
562 const cpp_hashnode *mi_cmacro;
563 const cpp_hashnode *mi_ind_cmacro;
565 /* Token lookahead. */
566 struct cpp_lookahead *la_read; /* Read from this lookahead. */
567 struct cpp_lookahead *la_write; /* Write to this lookahead. */
568 struct cpp_lookahead *la_unused; /* Free store. */
569 struct cpp_lookahead *la_saved; /* Backup when entering directive. */
571 /* Error counter for exit code. */
574 /* Line and column where a newline was first seen in a string
575 constant (multi-line strings). */
576 cpp_lexer_pos mlstring_pos;
578 /* Buffer to hold macro definition string. */
579 unsigned char *macro_buffer;
580 unsigned int macro_buffer_len;
582 /* Current depth in #include directives that use <...>. */
583 unsigned int system_include_depth;
585 /* Current depth of buffer stack. */
586 unsigned int buffer_stack_depth;
588 /* Current depth in #include directives. */
589 unsigned int include_depth;
591 /* Hash table of macros and assertions. See cpphash.c. */
592 struct htab *hashtab;
594 /* Tree of other included files. See cppfiles.c. */
595 struct splay_tree_s *all_include_files;
597 /* Chain of `actual directory' file_name_list entries, for ""
599 struct file_name_list *actual_dirs;
601 /* Current maximum length of directory names in the search path
602 for include files. (Altered as we get more of them.) */
603 unsigned int max_include_len;
605 /* Date and time tokens. Calculated together if either is requested. */
609 /* Buffer of -M output. */
612 /* Obstack holding all macro hash nodes. This never shrinks.
614 struct obstack *hash_ob;
616 /* Obstack holding buffer and conditional structures. This is a
617 real stack. See cpplib.c */
618 struct obstack *buffer_ob;
620 /* Pragma table - dynamic, because a library user can add to the
621 list of recognized pragmas. */
622 struct pragma_entry *pragmas;
626 void (*enter_file) PARAMS ((cpp_reader *));
627 void (*leave_file) PARAMS ((cpp_reader *));
628 void (*rename_file) PARAMS ((cpp_reader *));
629 void (*include) PARAMS ((cpp_reader *, const unsigned char *,
631 void (*define) PARAMS ((cpp_reader *, cpp_hashnode *));
632 void (*undef) PARAMS ((cpp_reader *, cpp_hashnode *));
633 void (*poison) PARAMS ((cpp_reader *));
634 void (*ident) PARAMS ((cpp_reader *, const cpp_string *));
635 void (*def_pragma) PARAMS ((cpp_reader *));
638 /* User visible options. */
639 struct cpp_options opts;
641 /* Special nodes - identifiers with predefined significance to the
643 struct spec_nodes spec_nodes;
645 /* Nonzero means we have printed (while error reporting) a list of
646 containing files that matches the current status. */
647 unsigned char input_stack_listing_current;
649 /* We're printed a warning recommending against using #import. */
650 unsigned char import_warning;
652 /* True after cpp_start_read completes. Used to inhibit some
653 warnings while parsing the command line. */
654 unsigned char done_initializing;
656 /* True if we are skipping a failed conditional group. */
657 unsigned char skipping;
660 #define CPP_FATAL_LIMIT 1000
661 /* True if we have seen a "fatal" error. */
662 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
664 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION)
665 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
666 #define CPP_BUF_LINE(BUF) ((BUF)->lineno)
667 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base + (BUF)->col_adjust)
668 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur)
670 /* Name under which this program was invoked. */
671 extern const char *progname;
673 /* The structure of a node in the hash table. The hash table has
674 entries for all identifiers: either macros defined by #define
675 commands (type NT_MACRO), assertions created with #assert
676 (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros
677 like __LINE__ are flagged NODE_BUILTIN. Poisioned identifiers are
678 flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an
679 identifier that behaves like an operator such as "xor".
680 NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
681 diagnostic may be required for this node. Currently this only
682 applies to __VA_ARGS__ and poisoned identifiers. */
684 /* Hash node flags. */
685 #define NODE_OPERATOR (1 << 0) /* C++ named operator. */
686 #define NODE_POISONED (1 << 1) /* Poisoned identifier. */
687 #define NODE_BUILTIN (1 << 2) /* Builtin macro. */
688 #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */
690 /* Different flavors of hash node. */
693 NT_VOID = 0, /* No definition yet. */
694 NT_MACRO, /* A macro of some form. */
695 NT_ASSERTION /* Predicate for #assert. */
698 /* Different flavors of builtin macro. */
701 BT_SPECLINE = 0, /* `__LINE__' */
702 BT_DATE, /* `__DATE__' */
703 BT_FILE, /* `__FILE__' */
704 BT_BASE_FILE, /* `__BASE_FILE__' */
705 BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
706 BT_TIME, /* `__TIME__' */
707 BT_STDC /* `__STDC__' */
710 /* There is a slot in the hashnode for use by front ends when integrated
711 with cpplib. It holds a tree (see tree.h) but we mustn't drag that
712 header into every user of cpplib.h. cpplib does not do anything with
713 this slot except clear it when a new node is created. */
718 const unsigned char *name; /* Null-terminated name. */
719 unsigned int hash; /* Cached hash value. */
720 unsigned short length; /* Length of name excluding null. */
721 unsigned short arg_index; /* Macro argument index. */
722 unsigned char directive_index; /* Index into directive table. */
723 ENUM_BITFIELD(node_type) type : 8; /* Node type. */
724 unsigned char flags; /* Node flags. */
728 cpp_macro *macro; /* If a macro. */
729 struct answer *answers; /* Answers to an assertion. */
730 enum cpp_ttype operator; /* Code for a named operator. */
731 enum builtin_type builtin; /* Code for a builtin macro. */
734 union tree_node *fe_value; /* Front end value. */
737 extern unsigned int cpp_token_len PARAMS ((const cpp_token *));
738 extern unsigned char *cpp_token_as_text PARAMS ((cpp_reader *,
740 extern unsigned char *cpp_spell_token PARAMS ((cpp_reader *, const cpp_token *,
742 extern void cpp_init PARAMS ((void));
743 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
744 extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
745 extern void cpp_reader_init PARAMS ((cpp_reader *, enum c_lang));
747 extern void cpp_register_pragma PARAMS ((cpp_reader *,
748 const char *, const char *,
749 void (*) PARAMS ((cpp_reader *))));
750 extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
752 extern int cpp_start_read PARAMS ((cpp_reader *, const char *));
753 extern void cpp_finish PARAMS ((cpp_reader *));
754 extern void cpp_cleanup PARAMS ((cpp_reader *));
755 extern int cpp_avoid_paste PARAMS ((cpp_reader *, const cpp_token *,
757 extern enum cpp_ttype cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *,
758 const cpp_token *, int *));
759 extern void cpp_get_token PARAMS ((cpp_reader *, cpp_token *));
760 extern const cpp_lexer_pos *cpp_get_line PARAMS ((cpp_reader *));
761 extern const unsigned char *cpp_macro_definition PARAMS ((cpp_reader *,
762 const cpp_hashnode *));
764 extern void cpp_define PARAMS ((cpp_reader *, const char *));
765 extern void cpp_assert PARAMS ((cpp_reader *, const char *));
766 extern void cpp_undef PARAMS ((cpp_reader *, const char *));
767 extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
769 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
770 const unsigned char *, long));
771 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
772 extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
774 /* N.B. The error-message-printer prototypes have not been nicely
775 formatted because exgettext needs to see 'msgid' on the same line
776 as the name of the function in order to work properly. Only the
777 string argument gets a name in an effort to keep the lines from
778 getting ridiculously oversized. */
780 extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
782 extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
784 extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
786 extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
788 extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
790 extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
792 extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
794 extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
796 extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
798 extern void cpp_pedwarn_with_file_and_line PARAMS ((cpp_reader *, const char *, int, int, const char *msgid, ...))
800 extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
801 extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
804 extern int cpp_ideq PARAMS ((const cpp_token *,
806 extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
807 extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
808 extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
811 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
812 const unsigned char *, size_t));
813 extern void cpp_forall_identifiers PARAMS ((cpp_reader *,
814 int (*) PARAMS ((cpp_reader *,
820 extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *));
821 extern void cpp_start_lookahead PARAMS ((cpp_reader *));
822 extern void cpp_stop_lookahead PARAMS ((cpp_reader *, int));
825 extern int cpp_included PARAMS ((cpp_reader *, const char *));
826 extern int cpp_read_file PARAMS ((cpp_reader *, const char *));
827 extern void cpp_make_system_header PARAMS ((cpp_reader *, cpp_buffer *, int));
828 extern const char *cpp_syshdr_flags PARAMS ((cpp_reader *, cpp_buffer *));
830 /* These are inline functions instead of macros so we can get type
832 typedef unsigned char U_CHAR;
833 #define U (const U_CHAR *) /* Intended use: U"string" */
835 static inline int ustrcmp PARAMS ((const U_CHAR *, const U_CHAR *));
836 static inline int ustrncmp PARAMS ((const U_CHAR *, const U_CHAR *,
838 static inline size_t ustrlen PARAMS ((const U_CHAR *));
839 static inline U_CHAR *uxstrdup PARAMS ((const U_CHAR *));
840 static inline U_CHAR *ustrchr PARAMS ((const U_CHAR *, int));
841 static inline int ufputs PARAMS ((const U_CHAR *, FILE *));
845 const U_CHAR *s1, *s2;
847 return strcmp ((const char *)s1, (const char *)s2);
852 const U_CHAR *s1, *s2;
855 return strncmp ((const char *)s1, (const char *)s2, n);
862 return strlen ((const char *)s1);
865 static inline U_CHAR *
869 return (U_CHAR *) xstrdup ((const char *)s1);
872 static inline U_CHAR *
877 return (U_CHAR *) strchr ((const char *)s1, c);
885 return fputs ((const char *)s, f);
891 #endif /* __GCC_CPPLIB__ */