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;
252 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
253 efficiency, and partly to limit runaway recursion. */
254 #define CPP_STACK_MAX 200
256 /* Values for opts.dump_macros.
257 dump_only means inhibit output of the preprocessed text
258 and instead output the definitions of all user-defined
259 macros in a form suitable for use as input to cpp.
260 dump_names means pass #define and the macro name through to output.
261 dump_definitions means pass the whole definition (plus #define) through
263 enum { dump_none = 0, dump_only, dump_names, dump_definitions };
265 /* This structure is nested inside struct cpp_reader, and
266 carries all the options visible to the command line. */
269 /* Name of input and output files. */
270 const char *in_fname;
271 const char *out_fname;
273 /* Characters between tab stops. */
274 unsigned int tabstop;
276 /* Pending options - -D, -U, -A, -I, -ixxx. */
277 struct cpp_pending *pending;
279 /* File name which deps are being written to. This is 0 if deps are
280 being written to stdout. */
281 const char *deps_file;
283 /* Target-name to write with the dependency information. */
286 /* Search paths for include files. */
287 struct file_name_list *quote_include; /* First dir to search for "file" */
288 struct file_name_list *bracket_include;/* First dir to search for <file> */
290 /* Map between header names and file names, used only on DOS where
291 file names are limited in length. */
292 struct file_name_map_list *map_list;
294 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
295 in the standard include file directories. */
296 const char *include_prefix;
297 unsigned int include_prefix_len;
299 /* -fleading_underscore sets this to "_". */
300 const char *user_label_prefix;
302 /* The language we're preprocessing. */
305 /* Non-0 means -v, so print the full set of include dirs. */
306 unsigned char verbose;
308 /* Nonzero means use extra default include directories for C++. */
309 unsigned char cplusplus;
311 /* Nonzero means handle cplusplus style comments */
312 unsigned char cplusplus_comments;
314 /* Nonzero means handle #import, for objective C. */
317 /* Nonzero means don't copy comments into the output file. */
318 unsigned char discard_comments;
320 /* Nonzero means process the ISO trigraph sequences. */
321 unsigned char trigraphs;
323 /* Nonzero means process the ISO digraph sequences. */
324 unsigned char digraphs;
326 /* Nonzero means to allow hexadecimal floats and LL suffixes. */
327 unsigned char extended_numbers;
329 /* Nonzero means print the names of included files rather than the
330 preprocessed output. 1 means just the #include "...", 2 means
331 #include <...> as well. */
332 unsigned char print_deps;
334 /* Nonzero if missing .h files in -M output are assumed to be
335 generated files and not errors. */
336 unsigned char print_deps_missing_files;
338 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
339 unsigned char print_deps_append;
341 /* Nonzero means print names of header files (-H). */
342 unsigned char print_include_names;
344 /* Nonzero means cpp_pedwarn causes a hard error. */
345 unsigned char pedantic_errors;
347 /* Nonzero means don't print warning messages. */
348 unsigned char inhibit_warnings;
350 /* Nonzero means don't suppress warnings from system headers. */
351 unsigned char warn_system_headers;
353 /* Nonzero means don't print error messages. Has no option to
354 select it, but can be set by a user of cpplib (e.g. fix-header). */
355 unsigned char inhibit_errors;
357 /* Nonzero means warn if slash-star appears in a comment. */
358 unsigned char warn_comments;
360 /* Nonzero means warn if there are any trigraphs. */
361 unsigned char warn_trigraphs;
363 /* Nonzero means warn if #import is used. */
364 unsigned char warn_import;
366 /* Nonzero means warn about various incompatibilities with
368 unsigned char warn_traditional;
370 /* Nonzero means turn warnings into errors. */
371 unsigned char warnings_are_errors;
373 /* Nonzero causes output not to be done, but directives such as
374 #define that have side effects are still obeyed. */
375 unsigned char no_output;
377 /* Nonzero means we should look for header.gcc files that remap file
381 /* Nonzero means don't output line number information. */
382 unsigned char no_line_commands;
384 /* Nonzero means -I- has been seen, so don't look for #include "foo"
385 the source-file directory. */
386 unsigned char ignore_srcdir;
388 /* Zero means dollar signs are punctuation. */
389 unsigned char dollars_in_ident;
391 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
392 unsigned char warn_undef;
394 /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */
397 /* Nonzero means give all the error messages the ANSI standard requires. */
398 unsigned char pedantic;
400 /* Nonzero means we're looking at already preprocessed code, so don't
401 bother trying to do macro expansion and whatnot. */
402 unsigned char preprocessed;
404 /* Nonzero disables all the standard directories for headers. */
405 unsigned char no_standard_includes;
407 /* Nonzero disables the C++-specific standard directories for headers. */
408 unsigned char no_standard_cplusplus_includes;
410 /* Nonzero means dump macros in some fashion - see above. */
411 unsigned char dump_macros;
413 /* Nonzero means pass all #define and #undef directives which we
414 actually process through to the output stream. This feature is
415 used primarily to allow cc1 to record the #defines and #undefs
416 for the sake of debuggers which understand about preprocessor
417 macros, but it may also be useful with -E to figure out how
418 symbols are defined, and where they are defined. */
419 unsigned char debug_output;
421 /* Nonzero means pass #include lines through to the output. */
422 unsigned char dump_includes;
424 /* Print column number in error messages. */
425 unsigned char show_column;
430 /* Nonzero if first token on line is CPP_HASH. */
431 unsigned char in_directive;
433 /* Nonzero if in a directive that takes angle-bracketed headers. */
434 unsigned char angled_headers;
436 /* Nonzero to save comments. Turned off if discard_comments, and in
437 all directives apart from #define. */
438 unsigned char save_comments;
440 /* If nonzero the next token is at the beginning of the line. */
441 unsigned char next_bol;
443 /* Nonzero if we're mid-comment. */
444 unsigned char lexing_comment;
446 /* Nonzero if lexing __VA_ARGS__ is valid. */
447 unsigned char va_args_ok;
449 /* Nonzero if lexing poisoned identifiers is valid. */
450 unsigned char poisoned_ok;
452 /* Nonzero to prevent macro expansion. */
453 unsigned char prevent_expansion;
455 /* Nonzero when parsing arguments to a function-like macro. */
456 unsigned char parsing_args;
459 /* Special nodes - identifiers with predefined significance. */
462 cpp_hashnode *n_L; /* L"str" */
463 cpp_hashnode *n_defined; /* defined operator */
464 cpp_hashnode *n__Pragma; /* _Pragma operator */
465 cpp_hashnode *n__STRICT_ANSI__; /* STDC_0_IN_SYSTEM_HEADERS */
466 cpp_hashnode *n__CHAR_UNSIGNED__; /* plain char is unsigned */
467 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */
470 /* This structure is passed to the call back when changing file. */
471 enum cpp_fc_reason {FC_ENTER = 0, FC_LEAVE, FC_RENAME};
475 const char *filename;
479 typedef struct cpp_file_change cpp_file_change;
480 struct cpp_file_change
482 struct cpp_file_loc from; /* Line of #include or #line. */
483 struct cpp_file_loc to; /* Line after #include or #line, or start. */
484 enum cpp_fc_reason reason; /* Reason for change. */
485 unsigned char sysp; /* Nonzero if system header. */
486 unsigned char externc; /* Nonzero if wrapper needed. */
489 /* A cpp_reader encapsulates the "state" of a pre-processor run.
490 Applying cpp_get_token repeatedly yields a stream of pre-processor
491 tokens. Usually, there is only one cpp_reader object active. */
495 /* Top of buffer stack. */
499 struct lexer_state state;
501 /* The position of the last lexed token and last lexed directive. */
502 cpp_lexer_pos lexer_pos;
503 cpp_lexer_pos directive_pos;
506 cpp_pool ident_pool; /* For all identifiers, and permanent
507 numbers and strings. */
508 cpp_pool temp_string_pool; /* For temporary numbers and strings. */
509 cpp_pool macro_pool; /* For macro definitions. Permanent. */
510 cpp_pool argument_pool; /* For macro arguments. Temporary. */
511 cpp_pool* string_pool; /* Either temp_string_pool or ident_pool. */
514 struct cpp_context base_context;
515 struct cpp_context *context;
517 /* If in_directive, the directive if known. */
518 const struct directive *directive;
520 /* Multiple inlcude optimisation. */
521 enum mi_state mi_state;
522 enum mi_ind mi_if_not_defined;
523 unsigned int mi_lexed;
524 const cpp_hashnode *mi_cmacro;
525 const cpp_hashnode *mi_ind_cmacro;
527 /* Token lookahead. */
528 struct cpp_lookahead *la_read; /* Read from this lookahead. */
529 struct cpp_lookahead *la_write; /* Write to this lookahead. */
530 struct cpp_lookahead *la_unused; /* Free store. */
531 struct cpp_lookahead *la_saved; /* Backup when entering directive. */
533 /* Error counter for exit code. */
536 /* Line and column where a newline was first seen in a string
537 constant (multi-line strings). */
538 cpp_lexer_pos mlstring_pos;
540 /* Buffer to hold macro definition string. */
541 unsigned char *macro_buffer;
542 unsigned int macro_buffer_len;
544 /* Current depth in #include directives that use <...>. */
545 unsigned int system_include_depth;
547 /* Current depth of buffer stack. */
548 unsigned int buffer_stack_depth;
550 /* Current depth in #include directives. */
551 unsigned int include_depth;
553 /* Hash table of macros and assertions. See cpphash.c. */
554 struct htab *hashtab;
556 /* Tree of other included files. See cppfiles.c. */
557 struct splay_tree_s *all_include_files;
559 /* Chain of `actual directory' file_name_list entries, for ""
561 struct file_name_list *actual_dirs;
563 /* Current maximum length of directory names in the search path
564 for include files. (Altered as we get more of them.) */
565 unsigned int max_include_len;
567 /* Date and time tokens. Calculated together if either is requested. */
571 /* Buffer of -M output. */
574 /* Obstack holding all macro hash nodes. This never shrinks.
576 struct obstack *hash_ob;
578 /* Obstack holding buffer and conditional structures. This is a
579 real stack. See cpplib.c */
580 struct obstack *buffer_ob;
582 /* Pragma table - dynamic, because a library user can add to the
583 list of recognized pragmas. */
584 struct pragma_entry *pragmas;
588 void (*change_file) PARAMS ((cpp_reader *, const cpp_file_change *));
589 void (*include) PARAMS ((cpp_reader *, const unsigned char *,
591 void (*define) PARAMS ((cpp_reader *, cpp_hashnode *));
592 void (*undef) PARAMS ((cpp_reader *, cpp_hashnode *));
593 void (*poison) PARAMS ((cpp_reader *));
594 void (*ident) PARAMS ((cpp_reader *, const cpp_string *));
595 void (*def_pragma) PARAMS ((cpp_reader *));
598 /* User visible options. */
599 struct cpp_options opts;
601 /* Special nodes - identifiers with predefined significance to the
603 struct spec_nodes spec_nodes;
605 /* Nonzero means we have printed (while error reporting) a list of
606 containing files that matches the current status. */
607 unsigned char input_stack_listing_current;
609 /* We're printed a warning recommending against using #import. */
610 unsigned char import_warning;
612 /* True after cpp_start_read completes. Used to inhibit some
613 warnings while parsing the command line. */
614 unsigned char done_initializing;
616 /* True if we are skipping a failed conditional group. */
617 unsigned char skipping;
620 #define CPP_FATAL_LIMIT 1000
621 /* True if we have seen a "fatal" error. */
622 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
624 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION)
625 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
626 #define CPP_BUF_LINE(BUF) ((BUF)->lineno)
627 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base + (BUF)->col_adjust)
628 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur)
630 /* Name under which this program was invoked. */
631 extern const char *progname;
633 /* The structure of a node in the hash table. The hash table has
634 entries for all identifiers: either macros defined by #define
635 commands (type NT_MACRO), assertions created with #assert
636 (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros
637 like __LINE__ are flagged NODE_BUILTIN. Poisioned identifiers are
638 flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an
639 identifier that behaves like an operator such as "xor".
640 NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
641 diagnostic may be required for this node. Currently this only
642 applies to __VA_ARGS__ and poisoned identifiers. */
644 /* Hash node flags. */
645 #define NODE_OPERATOR (1 << 0) /* C++ named operator. */
646 #define NODE_POISONED (1 << 1) /* Poisoned identifier. */
647 #define NODE_BUILTIN (1 << 2) /* Builtin macro. */
648 #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */
650 /* Different flavors of hash node. */
653 NT_VOID = 0, /* No definition yet. */
654 NT_MACRO, /* A macro of some form. */
655 NT_ASSERTION /* Predicate for #assert. */
658 /* Different flavors of builtin macro. */
661 BT_SPECLINE = 0, /* `__LINE__' */
662 BT_DATE, /* `__DATE__' */
663 BT_FILE, /* `__FILE__' */
664 BT_BASE_FILE, /* `__BASE_FILE__' */
665 BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
666 BT_TIME, /* `__TIME__' */
667 BT_STDC /* `__STDC__' */
670 /* There is a slot in the hashnode for use by front ends when integrated
671 with cpplib. It holds a tree (see tree.h) but we mustn't drag that
672 header into every user of cpplib.h. cpplib does not do anything with
673 this slot except clear it when a new node is created. */
678 const unsigned char *name; /* Null-terminated name. */
679 unsigned int hash; /* Cached hash value. */
680 unsigned short length; /* Length of name excluding null. */
681 unsigned short arg_index; /* Macro argument index. */
682 unsigned char directive_index; /* Index into directive table. */
683 ENUM_BITFIELD(node_type) type : 8; /* Node type. */
684 unsigned char flags; /* Node flags. */
688 cpp_macro *macro; /* If a macro. */
689 struct answer *answers; /* Answers to an assertion. */
690 enum cpp_ttype operator; /* Code for a named operator. */
691 enum builtin_type builtin; /* Code for a builtin macro. */
694 union tree_node *fe_value; /* Front end value. */
697 extern cpp_reader *cpp_create_reader PARAMS ((enum c_lang));
698 extern unsigned int cpp_token_len PARAMS ((const cpp_token *));
699 extern unsigned char *cpp_token_as_text PARAMS ((cpp_reader *,
701 extern unsigned char *cpp_spell_token PARAMS ((cpp_reader *, const cpp_token *,
703 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
704 extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
705 extern void cpp_register_pragma PARAMS ((cpp_reader *,
706 const char *, const char *,
707 void (*) PARAMS ((cpp_reader *))));
708 extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
710 extern int cpp_start_read PARAMS ((cpp_reader *, const char *));
711 extern void cpp_finish PARAMS ((cpp_reader *));
712 extern void cpp_cleanup PARAMS ((cpp_reader *));
713 extern int cpp_avoid_paste PARAMS ((cpp_reader *, const cpp_token *,
715 extern enum cpp_ttype cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *,
716 const cpp_token *, int *));
717 extern void cpp_get_token PARAMS ((cpp_reader *, cpp_token *));
718 extern const cpp_lexer_pos *cpp_get_line PARAMS ((cpp_reader *));
719 extern const unsigned char *cpp_macro_definition PARAMS ((cpp_reader *,
720 const cpp_hashnode *));
722 extern void cpp_define PARAMS ((cpp_reader *, const char *));
723 extern void cpp_assert PARAMS ((cpp_reader *, const char *));
724 extern void cpp_undef PARAMS ((cpp_reader *, const char *));
725 extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
727 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
728 const unsigned char *, long));
729 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
730 extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
732 /* N.B. The error-message-printer prototypes have not been nicely
733 formatted because exgettext needs to see 'msgid' on the same line
734 as the name of the function in order to work properly. Only the
735 string argument gets a name in an effort to keep the lines from
736 getting ridiculously oversized. */
738 extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
740 extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
742 extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
744 extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
746 extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
748 extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
750 extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
752 extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
754 extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
756 extern void cpp_pedwarn_with_file_and_line PARAMS ((cpp_reader *, const char *, int, int, const char *msgid, ...))
758 extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
759 extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
762 extern int cpp_ideq PARAMS ((const cpp_token *,
764 extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
765 extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
766 extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
769 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
770 const unsigned char *, size_t));
771 extern void cpp_forall_identifiers PARAMS ((cpp_reader *,
772 int (*) PARAMS ((cpp_reader *,
778 extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *, int));
779 extern void cpp_start_lookahead PARAMS ((cpp_reader *));
780 extern void cpp_stop_lookahead PARAMS ((cpp_reader *, int));
783 extern int cpp_included PARAMS ((cpp_reader *, const char *));
784 extern int cpp_read_file PARAMS ((cpp_reader *, const char *));
785 extern void cpp_make_system_header PARAMS ((cpp_reader *, cpp_buffer *, 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__ */