1 /* Definitions for CPP library.
2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001
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 /* Search paths for include files. */
285 struct file_name_list *quote_include; /* First dir to search for "file" */
286 struct file_name_list *bracket_include;/* First dir to search for <file> */
288 /* Map between header names and file names, used only on DOS where
289 file names are limited in length. */
290 struct file_name_map_list *map_list;
292 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
293 in the standard include file directories. */
294 const char *include_prefix;
295 unsigned int include_prefix_len;
297 /* -fleading_underscore sets this to "_". */
298 const char *user_label_prefix;
300 /* The language we're preprocessing. */
303 /* Non-0 means -v, so print the full set of include dirs. */
304 unsigned char verbose;
306 /* Nonzero means use extra default include directories for C++. */
307 unsigned char cplusplus;
309 /* Nonzero means handle cplusplus style comments */
310 unsigned char cplusplus_comments;
312 /* Nonzero means handle #import, for objective C. */
315 /* Nonzero means don't copy comments into the output file. */
316 unsigned char discard_comments;
318 /* Nonzero means process the ISO trigraph sequences. */
319 unsigned char trigraphs;
321 /* Nonzero means process the ISO digraph sequences. */
322 unsigned char digraphs;
324 /* Nonzero means to allow hexadecimal floats and LL suffixes. */
325 unsigned char extended_numbers;
327 /* Nonzero means print the names of included files rather than the
328 preprocessed output. 1 means just the #include "...", 2 means
329 #include <...> as well. */
330 unsigned char print_deps;
332 /* Nonzero if phony targets are created for each header. */
333 unsigned char deps_phony_targets;
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 #include lines through to the output. */
415 unsigned char dump_includes;
417 /* Print column number in error messages. */
418 unsigned char show_column;
420 /* Treat C++ alternate operator names special. */
421 unsigned char operator_names;
426 /* Nonzero if first token on line is CPP_HASH. */
427 unsigned char in_directive;
429 /* Nonzero if in a directive that takes angle-bracketed headers. */
430 unsigned char angled_headers;
432 /* Nonzero to save comments. Turned off if discard_comments, and in
433 all directives apart from #define. */
434 unsigned char save_comments;
436 /* If nonzero the next token is at the beginning of the line. */
437 unsigned char next_bol;
439 /* Nonzero if we're mid-comment. */
440 unsigned char lexing_comment;
442 /* Nonzero if lexing __VA_ARGS__ is valid. */
443 unsigned char va_args_ok;
445 /* Nonzero if lexing poisoned identifiers is valid. */
446 unsigned char poisoned_ok;
448 /* Nonzero to prevent macro expansion. */
449 unsigned char prevent_expansion;
451 /* Nonzero when parsing arguments to a function-like macro. */
452 unsigned char parsing_args;
454 /* Nonzero when in a # NUMBER directive. */
455 unsigned char line_extension;
458 /* Special nodes - identifiers with predefined significance. */
461 cpp_hashnode *n_L; /* L"str" */
462 cpp_hashnode *n_defined; /* defined operator */
463 cpp_hashnode *n__Pragma; /* _Pragma operator */
464 cpp_hashnode *n__STRICT_ANSI__; /* STDC_0_IN_SYSTEM_HEADERS */
465 cpp_hashnode *n__CHAR_UNSIGNED__; /* plain char is unsigned */
466 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */
469 /* This structure is passed to the call back when changing file. */
470 enum cpp_fc_reason {FC_ENTER = 0, FC_LEAVE, FC_RENAME};
474 const char *filename;
478 typedef struct cpp_file_change cpp_file_change;
479 struct cpp_file_change
481 struct cpp_file_loc from; /* Line of #include or #line. */
482 struct cpp_file_loc to; /* Line after #include or #line, or start. */
483 enum cpp_fc_reason reason; /* Reason for change. */
484 unsigned char sysp; /* Nonzero if system header. */
485 unsigned char externc; /* Nonzero if wrapper needed. */
488 /* A cpp_reader encapsulates the "state" of a pre-processor run.
489 Applying cpp_get_token repeatedly yields a stream of pre-processor
490 tokens. Usually, there is only one cpp_reader object active. */
494 /* Top of buffer stack. */
498 struct lexer_state state;
500 /* The position of the last lexed token and last lexed directive. */
501 cpp_lexer_pos lexer_pos;
502 cpp_lexer_pos directive_pos;
505 cpp_pool ident_pool; /* For all identifiers, and permanent
506 numbers and strings. */
507 cpp_pool macro_pool; /* For macro definitions. Permanent. */
508 cpp_pool argument_pool; /* For macro arguments. Temporary. */
511 struct cpp_context base_context;
512 struct cpp_context *context;
514 /* If in_directive, the directive if known. */
515 const struct directive *directive;
517 /* Multiple inlcude optimisation. */
518 enum mi_state mi_state;
519 enum mi_ind mi_if_not_defined;
520 unsigned int mi_lexed;
521 const cpp_hashnode *mi_cmacro;
522 const cpp_hashnode *mi_ind_cmacro;
524 /* Token lookahead. */
525 struct cpp_lookahead *la_read; /* Read from this lookahead. */
526 struct cpp_lookahead *la_write; /* Write to this lookahead. */
527 struct cpp_lookahead *la_unused; /* Free store. */
528 struct cpp_lookahead *la_saved; /* Backup when entering directive. */
530 /* Error counter for exit code. */
533 /* Line and column where a newline was first seen in a string
534 constant (multi-line strings). */
535 cpp_lexer_pos mlstring_pos;
537 /* Buffer to hold macro definition string. */
538 unsigned char *macro_buffer;
539 unsigned int macro_buffer_len;
541 /* Current depth in #include directives that use <...>. */
542 unsigned int system_include_depth;
544 /* Current depth of buffer stack. */
545 unsigned int buffer_stack_depth;
547 /* Current depth in #include directives. */
548 unsigned int include_depth;
550 /* Hash table of macros and assertions. See cpphash.c. */
551 struct htab *hashtab;
553 /* Tree of other included files. See cppfiles.c. */
554 struct splay_tree_s *all_include_files;
556 /* Chain of `actual directory' file_name_list entries, for ""
558 struct file_name_list *actual_dirs;
560 /* Current maximum length of directory names in the search path
561 for include files. (Altered as we get more of them.) */
562 unsigned int max_include_len;
564 /* Date and time tokens. Calculated together if either is requested. */
568 /* Opaque handle to the dependencies of mkdeps.c. Used by -M etc. */
571 /* Obstack holding all macro hash nodes. This never shrinks.
573 struct obstack *hash_ob;
575 /* Obstack holding buffer and conditional structures. This is a
576 real stack. See cpplib.c */
577 struct obstack *buffer_ob;
579 /* Pragma table - dynamic, because a library user can add to the
580 list of recognized pragmas. */
581 struct pragma_entry *pragmas;
585 void (*file_change) PARAMS ((cpp_reader *, const cpp_file_change *));
586 void (*include) PARAMS ((cpp_reader *, const unsigned char *,
588 void (*define) PARAMS ((cpp_reader *, cpp_hashnode *));
589 void (*undef) PARAMS ((cpp_reader *, cpp_hashnode *));
590 void (*poison) PARAMS ((cpp_reader *));
591 void (*ident) PARAMS ((cpp_reader *, const cpp_string *));
592 void (*def_pragma) PARAMS ((cpp_reader *));
595 /* User visible options. */
596 struct cpp_options opts;
598 /* Special nodes - identifiers with predefined significance to the
600 struct spec_nodes spec_nodes;
602 /* We're printed a warning recommending against using #import. */
603 unsigned char import_warning;
605 /* True after cpp_start_read completes. Used to inhibit some
606 warnings while parsing the command line. */
607 unsigned char done_initializing;
609 /* True if we are skipping a failed conditional group. */
610 unsigned char skipping;
612 /* True if --help appeared in the options. Caller should then bail
613 out after option parsing and printing its own help. See cppmain.c. */
614 unsigned char help_only;
617 #define CPP_FATAL_LIMIT 1000
618 /* True if we have seen a "fatal" error. */
619 #define CPP_FATAL_ERRORS(READER) ((READER)->errors >= CPP_FATAL_LIMIT)
621 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION)
622 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
623 #define CPP_BUF_LINE(BUF) ((BUF)->lineno)
624 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base + (BUF)->col_adjust)
625 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur)
627 /* Name under which this program was invoked. */
628 extern const char *progname;
630 /* Where does this buffer come from? A faked include, a source file,
631 a builtin macro, a command-line option, or a _Pragma operator. */
632 enum cpp_buffer_type {BUF_FAKE, BUF_FILE, BUF_BUILTIN,
633 BUF_CL_OPTION, BUF_PRAGMA};
635 /* The structure of a node in the hash table. The hash table has
636 entries for all identifiers: either macros defined by #define
637 commands (type NT_MACRO), assertions created with #assert
638 (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros
639 like __LINE__ are flagged NODE_BUILTIN. Poisioned identifiers are
640 flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an
641 identifier that behaves like an operator such as "xor".
642 NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
643 diagnostic may be required for this node. Currently this only
644 applies to __VA_ARGS__ and poisoned identifiers. */
646 /* Hash node flags. */
647 #define NODE_OPERATOR (1 << 0) /* C++ named operator. */
648 #define NODE_POISONED (1 << 1) /* Poisoned identifier. */
649 #define NODE_BUILTIN (1 << 2) /* Builtin macro. */
650 #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */
652 /* Different flavors of hash node. */
655 NT_VOID = 0, /* No definition yet. */
656 NT_MACRO, /* A macro of some form. */
657 NT_ASSERTION /* Predicate for #assert. */
660 /* Different flavors of builtin macro. */
663 BT_SPECLINE = 0, /* `__LINE__' */
664 BT_DATE, /* `__DATE__' */
665 BT_FILE, /* `__FILE__' */
666 BT_BASE_FILE, /* `__BASE_FILE__' */
667 BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
668 BT_TIME, /* `__TIME__' */
669 BT_STDC /* `__STDC__' */
672 /* There is a slot in the hashnode for use by front ends when integrated
673 with cpplib. It holds a tree (see tree.h) but we mustn't drag that
674 header into every user of cpplib.h. cpplib does not do anything with
675 this slot except clear it when a new node is created. */
680 const unsigned char *name; /* Null-terminated name. */
681 unsigned int hash; /* Cached hash value. */
682 unsigned short length; /* Length of name excluding null. */
683 unsigned short arg_index; /* Macro argument index. */
684 unsigned char directive_index; /* Index into directive table. */
685 ENUM_BITFIELD(node_type) type : 8; /* Node type. */
686 unsigned char flags; /* Node flags. */
690 cpp_macro *macro; /* If a macro. */
691 struct answer *answers; /* Answers to an assertion. */
692 enum cpp_ttype operator; /* Code for a named operator. */
693 enum builtin_type builtin; /* Code for a builtin macro. */
696 union tree_node *fe_value; /* Front end value. */
699 /* Call this first to get a handle to pass to other functions. */
700 extern cpp_reader *cpp_create_reader PARAMS ((enum c_lang));
702 /* Now call cpp_handle_option[s] to handle 1[or more] switches. The
703 return value is the number of arguments used. If
704 cpp_handle_options returns without using all arguments, it couldn't
705 understand the next switch. When there are no switches left, you
706 must call cpp_post_options before calling cpp_start_read. Only
707 after cpp_post_options are the contents of the cpp_options
708 structure reliable. */
709 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
710 extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
711 extern void cpp_post_options PARAMS ((cpp_reader *));
713 extern unsigned int cpp_token_len PARAMS ((const cpp_token *));
714 extern unsigned char *cpp_token_as_text PARAMS ((cpp_reader *,
716 extern unsigned char *cpp_spell_token PARAMS ((cpp_reader *, const cpp_token *,
718 extern void cpp_register_pragma PARAMS ((cpp_reader *,
719 const char *, const char *,
720 void (*) PARAMS ((cpp_reader *))));
721 extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
723 extern int cpp_start_read PARAMS ((cpp_reader *, const char *));
724 extern void cpp_finish PARAMS ((cpp_reader *));
725 extern void cpp_cleanup PARAMS ((cpp_reader *));
726 extern int cpp_avoid_paste PARAMS ((cpp_reader *, const cpp_token *,
728 extern enum cpp_ttype cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *,
729 const cpp_token *, int *));
730 extern void cpp_get_token PARAMS ((cpp_reader *, cpp_token *));
731 extern const cpp_lexer_pos *cpp_get_line PARAMS ((cpp_reader *));
732 extern const unsigned char *cpp_macro_definition PARAMS ((cpp_reader *,
733 const cpp_hashnode *));
735 extern void cpp_define PARAMS ((cpp_reader *, const char *));
736 extern void cpp_assert PARAMS ((cpp_reader *, const char *));
737 extern void cpp_undef PARAMS ((cpp_reader *, const char *));
738 extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
740 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
741 const unsigned char *, size_t,
742 enum cpp_buffer_type,
744 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
745 extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
747 /* N.B. The error-message-printer prototypes have not been nicely
748 formatted because exgettext needs to see 'msgid' on the same line
749 as the name of the function in order to work properly. Only the
750 string argument gets a name in an effort to keep the lines from
751 getting ridiculously oversized. */
753 extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
755 extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
757 extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
759 extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
761 extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
763 extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
765 extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
767 extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
769 extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
771 extern void cpp_pedwarn_with_file_and_line PARAMS ((cpp_reader *, const char *, int, int, const char *msgid, ...))
773 extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
774 extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
777 extern int cpp_ideq PARAMS ((const cpp_token *,
779 extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
780 extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
781 extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
784 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
785 const unsigned char *, size_t));
786 extern void cpp_forall_identifiers PARAMS ((cpp_reader *,
787 int (*) PARAMS ((cpp_reader *,
793 extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *, int));
794 extern void cpp_start_lookahead PARAMS ((cpp_reader *));
795 extern void cpp_stop_lookahead PARAMS ((cpp_reader *, int));
798 extern int cpp_included PARAMS ((cpp_reader *, const char *));
799 extern void cpp_make_system_header PARAMS ((cpp_reader *, int, int));
801 /* These are inline functions instead of macros so we can get type
803 typedef unsigned char U_CHAR;
804 #define U (const U_CHAR *) /* Intended use: U"string" */
806 static inline int ustrcmp PARAMS ((const U_CHAR *, const U_CHAR *));
807 static inline int ustrncmp PARAMS ((const U_CHAR *, const U_CHAR *,
809 static inline size_t ustrlen PARAMS ((const U_CHAR *));
810 static inline U_CHAR *uxstrdup PARAMS ((const U_CHAR *));
811 static inline U_CHAR *ustrchr PARAMS ((const U_CHAR *, int));
812 static inline int ufputs PARAMS ((const U_CHAR *, FILE *));
816 const U_CHAR *s1, *s2;
818 return strcmp ((const char *)s1, (const char *)s2);
823 const U_CHAR *s1, *s2;
826 return strncmp ((const char *)s1, (const char *)s2, n);
833 return strlen ((const char *)s1);
836 static inline U_CHAR *
840 return (U_CHAR *) xstrdup ((const char *)s1);
843 static inline U_CHAR *
848 return (U_CHAR *) strchr ((const char *)s1, c);
856 return fputs ((const char *)s, f);
862 #endif /* __GCC_CPPLIB__ */