1 /* Definitions for CPP library.
2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
3 Free Software Foundation, Inc.
4 Written by Per Bothner, 1994-95.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 In other words, you are welcome to use, share and improve this program.
21 You are forbidden to forbid anyone else to use, share and improve
22 what you give them. Help stamp out software-hoarding! */
23 #ifndef __GCC_CPPLIB__
24 #define __GCC_CPPLIB__
26 #include <sys/types.h>
32 /* For complex reasons, cpp_reader is also typedefed in c-pragma.h. */
34 typedef struct cpp_reader cpp_reader;
36 typedef struct cpp_buffer cpp_buffer;
37 typedef struct cpp_options cpp_options;
38 typedef struct cpp_token cpp_token;
39 typedef struct cpp_string cpp_string;
40 typedef struct cpp_hashnode cpp_hashnode;
41 typedef struct cpp_pool cpp_pool;
42 typedef struct cpp_macro cpp_macro;
43 typedef struct cpp_lexer_pos cpp_lexer_pos;
44 typedef struct cpp_lookahead cpp_lookahead;
46 struct directive; /* These are deliberately incomplete. */
51 struct file_name_map_list;
54 /* The first two groups, apart from '=', can appear in preprocessor
55 expressions. This allows a lookup table to be implemented in
58 The first group, to CPP_LAST_EQ, can be immediately followed by an
59 '='. The lexer needs operators ending in '=', like ">>=", to be in
60 the same order as their counterparts without the '=', like ">>". */
62 /* Positions in the table. */
63 #define CPP_LAST_EQ CPP_MAX
64 #define CPP_FIRST_DIGRAPH CPP_HASH
65 #define CPP_LAST_PUNCTUATOR CPP_DOT_STAR
70 OP(CPP_GREATER, ">") /* compare */ \
72 OP(CPP_PLUS, "+") /* math */ \
77 OP(CPP_AND, "&") /* bit ops */ \
80 OP(CPP_RSHIFT, ">>") \
81 OP(CPP_LSHIFT, "<<") \
82 OP(CPP_MIN, "<?") /* extension */ \
86 OP(CPP_AND_AND, "&&") /* logical */ \
90 OP(CPP_COMMA, ",") /* grouping */ \
91 OP(CPP_OPEN_PAREN, "(") \
92 OP(CPP_CLOSE_PAREN, ")") \
93 OP(CPP_EQ_EQ, "==") /* compare */ \
94 OP(CPP_NOT_EQ, "!=") \
95 OP(CPP_GREATER_EQ, ">=") \
96 OP(CPP_LESS_EQ, "<=") \
98 OP(CPP_PLUS_EQ, "+=") /* math */ \
99 OP(CPP_MINUS_EQ, "-=") \
100 OP(CPP_MULT_EQ, "*=") \
101 OP(CPP_DIV_EQ, "/=") \
102 OP(CPP_MOD_EQ, "%=") \
103 OP(CPP_AND_EQ, "&=") /* bit ops */ \
104 OP(CPP_OR_EQ, "|=") \
105 OP(CPP_XOR_EQ, "^=") \
106 OP(CPP_RSHIFT_EQ, ">>=") \
107 OP(CPP_LSHIFT_EQ, "<<=") \
108 OP(CPP_MIN_EQ, "<?=") /* extension */ \
109 OP(CPP_MAX_EQ, ">?=") \
110 /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \
111 OP(CPP_HASH, "#") /* digraphs */ \
112 OP(CPP_PASTE, "##") \
113 OP(CPP_OPEN_SQUARE, "[") \
114 OP(CPP_CLOSE_SQUARE, "]") \
115 OP(CPP_OPEN_BRACE, "{") \
116 OP(CPP_CLOSE_BRACE, "}") \
117 /* The remainder of the punctuation. Order is not significant. */ \
118 OP(CPP_SEMICOLON, ";") /* structure */ \
119 OP(CPP_ELLIPSIS, "...") \
120 OP(CPP_PLUS_PLUS, "++") /* increment */ \
121 OP(CPP_MINUS_MINUS, "--") \
122 OP(CPP_DEREF, "->") /* accessors */ \
124 OP(CPP_SCOPE, "::") \
125 OP(CPP_DEREF_STAR, "->*") \
126 OP(CPP_DOT_STAR, ".*") \
128 TK(CPP_NAME, SPELL_IDENT) /* word */ \
129 TK(CPP_INT, SPELL_STRING) /* 23 */ \
130 TK(CPP_FLOAT, SPELL_STRING) /* 3.14159 */ \
131 TK(CPP_NUMBER, SPELL_STRING) /* 34_be+ta */ \
133 TK(CPP_CHAR, SPELL_STRING) /* 'char' */ \
134 TK(CPP_WCHAR, SPELL_STRING) /* L'char' */ \
135 TK(CPP_OTHER, SPELL_CHAR) /* stray punctuation */ \
137 TK(CPP_STRING, SPELL_STRING) /* "string" */ \
138 TK(CPP_WSTRING, SPELL_STRING) /* L"string" */ \
139 TK(CPP_OSTRING, SPELL_STRING) /* @"string" - Objective C */ \
140 TK(CPP_HEADER_NAME, SPELL_STRING) /* <stdio.h> in #include */ \
142 TK(CPP_COMMENT, SPELL_STRING) /* Only if output comments. */ \
143 TK(CPP_MACRO_ARG, SPELL_NONE) /* Macro argument. */ \
144 OP(CPP_EOF, "EOL") /* End of line or file. */
156 /* C language kind, used when calling cpp_reader_init. */
157 enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99,
158 CLK_GNUCXX, CLK_CXX98, CLK_OBJC, CLK_OBJCXX, CLK_ASM};
160 /* Multiple-include optimisation. */
161 enum mi_state {MI_FAILED = 0, MI_OUTSIDE};
162 enum mi_ind {MI_IND_NONE = 0, MI_IND_NOT};
164 /* Payload of a NUMBER, FLOAT, STRING, or COMMENT token. */
168 const unsigned char *text;
171 /* Flags for the cpp_token structure. */
172 #define PREV_WHITE (1 << 0) /* If whitespace before this token. */
173 #define DIGRAPH (1 << 1) /* If it was a digraph. */
174 #define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */
175 #define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */
176 #define NAMED_OP (1 << 4) /* C++ named operators. */
177 #define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */
179 /* A preprocessing token. This has been carefully packed and should
180 occupy 12 bytes on 32-bit hosts and 16 bytes on 64-bit hosts. */
183 ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */
184 unsigned char flags; /* flags - see above */
188 struct cpp_hashnode *node; /* An identifier. */
189 struct cpp_string str; /* A string, or number. */
190 unsigned int arg_no; /* Argument no. for a CPP_MACRO_ARG. */
191 unsigned char c; /* Character represented by CPP_OTHER. */
195 /* The position of a token in the current file. */
199 unsigned int output_line;
203 typedef struct cpp_token_with_pos cpp_token_with_pos;
204 struct cpp_token_with_pos
210 /* Token lookahead. */
213 struct cpp_lookahead *next;
214 cpp_token_with_pos *tokens;
216 unsigned int cur, count, cap;
222 struct cpp_chunk *cur, *locked;
223 unsigned char *pos; /* Current position. */
228 typedef struct toklist toklist;
235 typedef struct cpp_context cpp_context;
238 /* Doubly-linked list. */
239 cpp_context *next, *prev;
241 /* Contexts other than the base context are contiguous tokens.
242 e.g. macro expansions, expanded argument tokens. */
245 /* For a macro context, these are the macro and its arguments. */
249 /* A standalone character. We may want to make it unsigned for the
250 same reason we use unsigned char - to avoid signedness issues. */
251 typedef int cppchar_t;
253 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
254 efficiency, and partly to limit runaway recursion. */
255 #define CPP_STACK_MAX 200
257 /* Values for opts.dump_macros.
258 dump_only means inhibit output of the preprocessed text
259 and instead output the definitions of all user-defined
260 macros in a form suitable for use as input to cpp.
261 dump_names means pass #define and the macro name through to output.
262 dump_definitions means pass the whole definition (plus #define) through
264 enum { dump_none = 0, dump_only, dump_names, dump_definitions };
266 /* This structure is nested inside struct cpp_reader, and
267 carries all the options visible to the command line. */
270 /* Name of input and output files. */
271 const char *in_fname;
272 const char *out_fname;
274 /* Characters between tab stops. */
275 unsigned int tabstop;
277 /* Pending options - -D, -U, -A, -I, -ixxx. */
278 struct cpp_pending *pending;
280 /* File name which deps are being written to. This is 0 if deps are
281 being written to stdout. */
282 const char *deps_file;
284 /* Target-name to write with the dependency information. */
287 /* Search paths for include files. */
288 struct file_name_list *quote_include; /* First dir to search for "file" */
289 struct file_name_list *bracket_include;/* First dir to search for <file> */
291 /* Map between header names and file names, used only on DOS where
292 file names are limited in length. */
293 struct file_name_map_list *map_list;
295 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
296 in the standard include file directories. */
297 const char *include_prefix;
298 unsigned int include_prefix_len;
300 /* -fleading_underscore sets this to "_". */
301 const char *user_label_prefix;
303 /* The language we're preprocessing. */
306 /* Non-0 means -v, so print the full set of include dirs. */
307 unsigned char verbose;
309 /* Nonzero means use extra default include directories for C++. */
310 unsigned char cplusplus;
312 /* Nonzero means handle cplusplus style comments */
313 unsigned char cplusplus_comments;
315 /* Nonzero means handle #import, for objective C. */
318 /* Nonzero means don't copy comments into the output file. */
319 unsigned char discard_comments;
321 /* Nonzero means process the ISO trigraph sequences. */
322 unsigned char trigraphs;
324 /* Nonzero means process the ISO digraph sequences. */
325 unsigned char digraphs;
327 /* Nonzero means to allow hexadecimal floats and LL suffixes. */
328 unsigned char extended_numbers;
330 /* Nonzero means print the names of included files rather than the
331 preprocessed output. 1 means just the #include "...", 2 means
332 #include <...> as well. */
333 unsigned char print_deps;
335 /* Nonzero if missing .h files in -M output are assumed to be
336 generated files and not errors. */
337 unsigned char print_deps_missing_files;
339 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
340 unsigned char print_deps_append;
342 /* Nonzero means print names of header files (-H). */
343 unsigned char print_include_names;
345 /* Nonzero means cpp_pedwarn causes a hard error. */
346 unsigned char pedantic_errors;
348 /* Nonzero means don't print warning messages. */
349 unsigned char inhibit_warnings;
351 /* Nonzero means don't suppress warnings from system headers. */
352 unsigned char warn_system_headers;
354 /* Nonzero means don't print error messages. Has no option to
355 select it, but can be set by a user of cpplib (e.g. fix-header). */
356 unsigned char inhibit_errors;
358 /* Nonzero means warn if slash-star appears in a comment. */
359 unsigned char warn_comments;
361 /* Nonzero means warn if there are any trigraphs. */
362 unsigned char warn_trigraphs;
364 /* Nonzero means warn if #import is used. */
365 unsigned char warn_import;
367 /* Nonzero means warn about various incompatibilities with
369 unsigned char warn_traditional;
371 /* Nonzero means turn warnings into errors. */
372 unsigned char warnings_are_errors;
374 /* Nonzero causes output not to be done, but directives such as
375 #define that have side effects are still obeyed. */
376 unsigned char no_output;
378 /* Nonzero means we should look for header.gcc files that remap file
382 /* Nonzero means don't output line number information. */
383 unsigned char no_line_commands;
385 /* Nonzero means -I- has been seen, so don't look for #include "foo"
386 the source-file directory. */
387 unsigned char ignore_srcdir;
389 /* Zero means dollar signs are punctuation. */
390 unsigned char dollars_in_ident;
392 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
393 unsigned char warn_undef;
395 /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */
398 /* Nonzero means give all the error messages the ANSI standard requires. */
399 unsigned char pedantic;
401 /* Nonzero means we're looking at already preprocessed code, so don't
402 bother trying to do macro expansion and whatnot. */
403 unsigned char preprocessed;
405 /* Nonzero disables all the standard directories for headers. */
406 unsigned char no_standard_includes;
408 /* Nonzero disables the C++-specific standard directories for headers. */
409 unsigned char no_standard_cplusplus_includes;
411 /* Nonzero means dump macros in some fashion - see above. */
412 unsigned char dump_macros;
414 /* Nonzero means pass all #define and #undef directives which we
415 actually process through to the output stream. This feature is
416 used primarily to allow cc1 to record the #defines and #undefs
417 for the sake of debuggers which understand about preprocessor
418 macros, but it may also be useful with -E to figure out how
419 symbols are defined, and where they are defined. */
420 unsigned char debug_output;
422 /* Nonzero means pass #include lines through to the output. */
423 unsigned char dump_includes;
425 /* Print column number in error messages. */
426 unsigned char show_column;
431 /* Nonzero if first token on line is CPP_HASH. */
432 unsigned char in_directive;
434 /* Nonzero if in a directive that takes angle-bracketed headers. */
435 unsigned char angled_headers;
437 /* Nonzero to save comments. Turned off if discard_comments, and in
438 all directives apart from #define. */
439 unsigned char save_comments;
441 /* If nonzero the next token is at the beginning of the line. */
442 unsigned char next_bol;
444 /* Nonzero if we're mid-comment. */
445 unsigned char lexing_comment;
447 /* Nonzero if lexing __VA_ARGS__ is valid. */
448 unsigned char va_args_ok;
450 /* Nonzero if lexing poisoned identifiers is valid. */
451 unsigned char poisoned_ok;
453 /* Nonzero to prevent macro expansion. */
454 unsigned char prevent_expansion;
456 /* Nonzero when parsing arguments to a function-like macro. */
457 unsigned char parsing_args;
460 /* Special nodes - identifiers with predefined significance. */
463 cpp_hashnode *n_L; /* L"str" */
464 cpp_hashnode *n_defined; /* defined operator */
465 cpp_hashnode *n__Pragma; /* _Pragma operator */
466 cpp_hashnode *n__STRICT_ANSI__; /* STDC_0_IN_SYSTEM_HEADERS */
467 cpp_hashnode *n__CHAR_UNSIGNED__; /* plain char is unsigned */
468 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */
471 /* This structure is passed to the call back when changing file. */
472 enum cpp_fc_reason {FC_ENTER = 0, FC_LEAVE, FC_RENAME};
476 const char *filename;
480 typedef struct cpp_file_change cpp_file_change;
481 struct cpp_file_change
483 struct cpp_file_loc from; /* Line of #include or #line. */
484 struct cpp_file_loc to; /* Line after #include or #line, or start. */
485 enum cpp_fc_reason reason; /* Reason for change. */
486 unsigned char sysp; /* Nonzero if system header. */
487 unsigned char externc; /* Nonzero if wrapper needed. */
490 /* A cpp_reader encapsulates the "state" of a pre-processor run.
491 Applying cpp_get_token repeatedly yields a stream of pre-processor
492 tokens. Usually, there is only one cpp_reader object active. */
496 /* Top of buffer stack. */
500 struct lexer_state state;
502 /* The position of the last lexed token and last lexed directive. */
503 cpp_lexer_pos lexer_pos;
504 cpp_lexer_pos directive_pos;
507 cpp_pool ident_pool; /* For all identifiers, and permanent
508 numbers and strings. */
509 cpp_pool temp_string_pool; /* For temporary numbers and strings. */
510 cpp_pool macro_pool; /* For macro definitions. Permanent. */
511 cpp_pool argument_pool; /* For macro arguments. Temporary. */
512 cpp_pool* string_pool; /* Either temp_string_pool or ident_pool. */
515 struct cpp_context base_context;
516 struct cpp_context *context;
518 /* If in_directive, the directive if known. */
519 const struct directive *directive;
521 /* Multiple inlcude optimisation. */
522 enum mi_state mi_state;
523 enum mi_ind mi_if_not_defined;
524 unsigned int mi_lexed;
525 const cpp_hashnode *mi_cmacro;
526 const cpp_hashnode *mi_ind_cmacro;
528 /* Token lookahead. */
529 struct cpp_lookahead *la_read; /* Read from this lookahead. */
530 struct cpp_lookahead *la_write; /* Write to this lookahead. */
531 struct cpp_lookahead *la_unused; /* Free store. */
532 struct cpp_lookahead *la_saved; /* Backup when entering directive. */
534 /* Error counter for exit code. */
537 /* Line and column where a newline was first seen in a string
538 constant (multi-line strings). */
539 cpp_lexer_pos mlstring_pos;
541 /* Buffer to hold macro definition string. */
542 unsigned char *macro_buffer;
543 unsigned int macro_buffer_len;
545 /* Current depth in #include directives that use <...>. */
546 unsigned int system_include_depth;
548 /* Current depth of buffer stack. */
549 unsigned int buffer_stack_depth;
551 /* Current depth in #include directives. */
552 unsigned int include_depth;
554 /* Hash table of macros and assertions. See cpphash.c. */
555 struct htab *hashtab;
557 /* Tree of other included files. See cppfiles.c. */
558 struct splay_tree_s *all_include_files;
560 /* Chain of `actual directory' file_name_list entries, for ""
562 struct file_name_list *actual_dirs;
564 /* Current maximum length of directory names in the search path
565 for include files. (Altered as we get more of them.) */
566 unsigned int max_include_len;
568 /* Date and time tokens. Calculated together if either is requested. */
572 /* Buffer of -M output. */
575 /* Obstack holding all macro hash nodes. This never shrinks.
577 struct obstack *hash_ob;
579 /* Obstack holding buffer and conditional structures. This is a
580 real stack. See cpplib.c */
581 struct obstack *buffer_ob;
583 /* Pragma table - dynamic, because a library user can add to the
584 list of recognized pragmas. */
585 struct pragma_entry *pragmas;
589 void (*change_file) PARAMS ((cpp_reader *, const cpp_file_change *));
590 void (*include) PARAMS ((cpp_reader *, const unsigned char *,
592 void (*define) PARAMS ((cpp_reader *, cpp_hashnode *));
593 void (*undef) PARAMS ((cpp_reader *, cpp_hashnode *));
594 void (*poison) PARAMS ((cpp_reader *));
595 void (*ident) PARAMS ((cpp_reader *, const cpp_string *));
596 void (*def_pragma) PARAMS ((cpp_reader *));
599 /* User visible options. */
600 struct cpp_options opts;
602 /* Special nodes - identifiers with predefined significance to the
604 struct spec_nodes spec_nodes;
606 /* Nonzero means we have printed (while error reporting) a list of
607 containing files that matches the current status. */
608 unsigned char input_stack_listing_current;
610 /* We're printed a warning recommending against using #import. */
611 unsigned char import_warning;
613 /* True after cpp_start_read completes. Used to inhibit some
614 warnings while parsing the command line. */
615 unsigned char done_initializing;
617 /* True if we are skipping a failed conditional group. */
618 unsigned char skipping;
621 #define CPP_FATAL_LIMIT 1000
622 /* True if we have seen a "fatal" error. */
623 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
625 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION)
626 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
627 #define CPP_BUF_LINE(BUF) ((BUF)->lineno)
628 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base + (BUF)->col_adjust)
629 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur)
631 /* Name under which this program was invoked. */
632 extern const char *progname;
634 /* The structure of a node in the hash table. The hash table has
635 entries for all identifiers: either macros defined by #define
636 commands (type NT_MACRO), assertions created with #assert
637 (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros
638 like __LINE__ are flagged NODE_BUILTIN. Poisioned identifiers are
639 flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an
640 identifier that behaves like an operator such as "xor".
641 NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
642 diagnostic may be required for this node. Currently this only
643 applies to __VA_ARGS__ and poisoned identifiers. */
645 /* Hash node flags. */
646 #define NODE_OPERATOR (1 << 0) /* C++ named operator. */
647 #define NODE_POISONED (1 << 1) /* Poisoned identifier. */
648 #define NODE_BUILTIN (1 << 2) /* Builtin macro. */
649 #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */
651 /* Different flavors of hash node. */
654 NT_VOID = 0, /* No definition yet. */
655 NT_MACRO, /* A macro of some form. */
656 NT_ASSERTION /* Predicate for #assert. */
659 /* Different flavors of builtin macro. */
662 BT_SPECLINE = 0, /* `__LINE__' */
663 BT_DATE, /* `__DATE__' */
664 BT_FILE, /* `__FILE__' */
665 BT_BASE_FILE, /* `__BASE_FILE__' */
666 BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
667 BT_TIME, /* `__TIME__' */
668 BT_STDC /* `__STDC__' */
671 /* There is a slot in the hashnode for use by front ends when integrated
672 with cpplib. It holds a tree (see tree.h) but we mustn't drag that
673 header into every user of cpplib.h. cpplib does not do anything with
674 this slot except clear it when a new node is created. */
679 const unsigned char *name; /* Null-terminated name. */
680 unsigned int hash; /* Cached hash value. */
681 unsigned short length; /* Length of name excluding null. */
682 unsigned short arg_index; /* Macro argument index. */
683 unsigned char directive_index; /* Index into directive table. */
684 ENUM_BITFIELD(node_type) type : 8; /* Node type. */
685 unsigned char flags; /* Node flags. */
689 cpp_macro *macro; /* If a macro. */
690 struct answer *answers; /* Answers to an assertion. */
691 enum cpp_ttype operator; /* Code for a named operator. */
692 enum builtin_type builtin; /* Code for a builtin macro. */
695 union tree_node *fe_value; /* Front end value. */
698 extern cpp_reader *cpp_create_reader PARAMS ((enum c_lang));
699 extern unsigned int cpp_token_len PARAMS ((const cpp_token *));
700 extern unsigned char *cpp_token_as_text PARAMS ((cpp_reader *,
702 extern unsigned char *cpp_spell_token PARAMS ((cpp_reader *, const cpp_token *,
704 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
705 extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
706 extern void cpp_register_pragma PARAMS ((cpp_reader *,
707 const char *, const char *,
708 void (*) PARAMS ((cpp_reader *))));
709 extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
711 extern int cpp_start_read PARAMS ((cpp_reader *, const char *));
712 extern void cpp_finish PARAMS ((cpp_reader *));
713 extern void cpp_cleanup PARAMS ((cpp_reader *));
714 extern int cpp_avoid_paste PARAMS ((cpp_reader *, const cpp_token *,
716 extern enum cpp_ttype cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *,
717 const cpp_token *, int *));
718 extern void cpp_get_token PARAMS ((cpp_reader *, cpp_token *));
719 extern const cpp_lexer_pos *cpp_get_line PARAMS ((cpp_reader *));
720 extern const unsigned char *cpp_macro_definition PARAMS ((cpp_reader *,
721 const cpp_hashnode *));
723 extern void cpp_define PARAMS ((cpp_reader *, const char *));
724 extern void cpp_assert PARAMS ((cpp_reader *, const char *));
725 extern void cpp_undef PARAMS ((cpp_reader *, const char *));
726 extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
728 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
729 const unsigned char *, size_t));
730 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
731 extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
733 /* N.B. The error-message-printer prototypes have not been nicely
734 formatted because exgettext needs to see 'msgid' on the same line
735 as the name of the function in order to work properly. Only the
736 string argument gets a name in an effort to keep the lines from
737 getting ridiculously oversized. */
739 extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
741 extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
743 extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
745 extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
747 extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
749 extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
751 extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
753 extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
755 extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
757 extern void cpp_pedwarn_with_file_and_line PARAMS ((cpp_reader *, const char *, int, int, const char *msgid, ...))
759 extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
760 extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
763 extern int cpp_ideq PARAMS ((const cpp_token *,
765 extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
766 extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
767 extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
770 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
771 const unsigned char *, size_t));
772 extern void cpp_forall_identifiers PARAMS ((cpp_reader *,
773 int (*) PARAMS ((cpp_reader *,
779 extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *, int));
780 extern void cpp_start_lookahead PARAMS ((cpp_reader *));
781 extern void cpp_stop_lookahead PARAMS ((cpp_reader *, int));
784 extern int cpp_included PARAMS ((cpp_reader *, const char *));
785 extern void cpp_make_system_header PARAMS ((cpp_reader *, int, int));
787 /* These are inline functions instead of macros so we can get type
789 typedef unsigned char U_CHAR;
790 #define U (const U_CHAR *) /* Intended use: U"string" */
792 static inline int ustrcmp PARAMS ((const U_CHAR *, const U_CHAR *));
793 static inline int ustrncmp PARAMS ((const U_CHAR *, const U_CHAR *,
795 static inline size_t ustrlen PARAMS ((const U_CHAR *));
796 static inline U_CHAR *uxstrdup PARAMS ((const U_CHAR *));
797 static inline U_CHAR *ustrchr PARAMS ((const U_CHAR *, int));
798 static inline int ufputs PARAMS ((const U_CHAR *, FILE *));
802 const U_CHAR *s1, *s2;
804 return strcmp ((const char *)s1, (const char *)s2);
809 const U_CHAR *s1, *s2;
812 return strncmp ((const char *)s1, (const char *)s2, n);
819 return strlen ((const char *)s1);
822 static inline U_CHAR *
826 return (U_CHAR *) xstrdup ((const char *)s1);
829 static inline U_CHAR *
834 return (U_CHAR *) strchr ((const char *)s1, c);
842 return fputs ((const char *)s, f);
848 #endif /* __GCC_CPPLIB__ */