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;
45 typedef struct cpp_callbacks cpp_callbacks;
47 struct directive; /* These are deliberately incomplete. */
52 struct file_name_map_list;
55 /* The first two groups, apart from '=', can appear in preprocessor
56 expressions. This allows a lookup table to be implemented in
59 The first group, to CPP_LAST_EQ, can be immediately followed by an
60 '='. The lexer needs operators ending in '=', like ">>=", to be in
61 the same order as their counterparts without the '=', like ">>". */
63 /* Positions in the table. */
64 #define CPP_LAST_EQ CPP_MAX
65 #define CPP_FIRST_DIGRAPH CPP_HASH
66 #define CPP_LAST_PUNCTUATOR CPP_DOT_STAR
71 OP(CPP_GREATER, ">") /* compare */ \
73 OP(CPP_PLUS, "+") /* math */ \
78 OP(CPP_AND, "&") /* bit ops */ \
81 OP(CPP_RSHIFT, ">>") \
82 OP(CPP_LSHIFT, "<<") \
83 OP(CPP_MIN, "<?") /* extension */ \
87 OP(CPP_AND_AND, "&&") /* logical */ \
91 OP(CPP_COMMA, ",") /* grouping */ \
92 OP(CPP_OPEN_PAREN, "(") \
93 OP(CPP_CLOSE_PAREN, ")") \
94 OP(CPP_EQ_EQ, "==") /* compare */ \
95 OP(CPP_NOT_EQ, "!=") \
96 OP(CPP_GREATER_EQ, ">=") \
97 OP(CPP_LESS_EQ, "<=") \
99 OP(CPP_PLUS_EQ, "+=") /* math */ \
100 OP(CPP_MINUS_EQ, "-=") \
101 OP(CPP_MULT_EQ, "*=") \
102 OP(CPP_DIV_EQ, "/=") \
103 OP(CPP_MOD_EQ, "%=") \
104 OP(CPP_AND_EQ, "&=") /* bit ops */ \
105 OP(CPP_OR_EQ, "|=") \
106 OP(CPP_XOR_EQ, "^=") \
107 OP(CPP_RSHIFT_EQ, ">>=") \
108 OP(CPP_LSHIFT_EQ, "<<=") \
109 OP(CPP_MIN_EQ, "<?=") /* extension */ \
110 OP(CPP_MAX_EQ, ">?=") \
111 /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \
112 OP(CPP_HASH, "#") /* digraphs */ \
113 OP(CPP_PASTE, "##") \
114 OP(CPP_OPEN_SQUARE, "[") \
115 OP(CPP_CLOSE_SQUARE, "]") \
116 OP(CPP_OPEN_BRACE, "{") \
117 OP(CPP_CLOSE_BRACE, "}") \
118 /* The remainder of the punctuation. Order is not significant. */ \
119 OP(CPP_SEMICOLON, ";") /* structure */ \
120 OP(CPP_ELLIPSIS, "...") \
121 OP(CPP_PLUS_PLUS, "++") /* increment */ \
122 OP(CPP_MINUS_MINUS, "--") \
123 OP(CPP_DEREF, "->") /* accessors */ \
125 OP(CPP_SCOPE, "::") \
126 OP(CPP_DEREF_STAR, "->*") \
127 OP(CPP_DOT_STAR, ".*") \
129 TK(CPP_NAME, SPELL_IDENT) /* word */ \
130 TK(CPP_INT, SPELL_STRING) /* 23 */ \
131 TK(CPP_FLOAT, SPELL_STRING) /* 3.14159 */ \
132 TK(CPP_NUMBER, SPELL_STRING) /* 34_be+ta */ \
134 TK(CPP_CHAR, SPELL_STRING) /* 'char' */ \
135 TK(CPP_WCHAR, SPELL_STRING) /* L'char' */ \
136 TK(CPP_OTHER, SPELL_CHAR) /* stray punctuation */ \
138 TK(CPP_STRING, SPELL_STRING) /* "string" */ \
139 TK(CPP_WSTRING, SPELL_STRING) /* L"string" */ \
140 TK(CPP_OSTRING, SPELL_STRING) /* @"string" - Objective C */ \
141 TK(CPP_HEADER_NAME, SPELL_STRING) /* <stdio.h> in #include */ \
143 TK(CPP_COMMENT, SPELL_STRING) /* Only if output comments. */ \
144 TK(CPP_MACRO_ARG, SPELL_NONE) /* Macro argument. */ \
145 OP(CPP_EOF, "EOL") /* End of line or file. */
157 /* C language kind, used when calling cpp_reader_init. */
158 enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99,
159 CLK_GNUCXX, CLK_CXX98, CLK_OBJC, CLK_OBJCXX, CLK_ASM};
161 /* Multiple-include optimisation. */
162 enum mi_state {MI_FAILED = 0, MI_OUTSIDE};
163 enum mi_ind {MI_IND_NONE = 0, MI_IND_NOT};
165 /* Payload of a NUMBER, FLOAT, STRING, or COMMENT token. */
169 const unsigned char *text;
172 /* Flags for the cpp_token structure. */
173 #define PREV_WHITE (1 << 0) /* If whitespace before this token. */
174 #define DIGRAPH (1 << 1) /* If it was a digraph. */
175 #define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */
176 #define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */
177 #define NAMED_OP (1 << 4) /* C++ named operators. */
178 #define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */
180 /* A preprocessing token. This has been carefully packed and should
181 occupy 12 bytes on 32-bit hosts and 16 bytes on 64-bit hosts. */
184 ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */
185 unsigned char flags; /* flags - see above */
189 struct cpp_hashnode *node; /* An identifier. */
190 struct cpp_string str; /* A string, or number. */
191 unsigned int arg_no; /* Argument no. for a CPP_MACRO_ARG. */
192 unsigned char c; /* Character represented by CPP_OTHER. */
196 /* The position of a token in the current file. */
200 unsigned int output_line;
204 typedef struct cpp_token_with_pos cpp_token_with_pos;
205 struct cpp_token_with_pos
211 /* Token lookahead. */
214 struct cpp_lookahead *next;
215 cpp_token_with_pos *tokens;
217 unsigned int cur, count, cap;
223 struct cpp_chunk *cur, *locked;
224 unsigned char *pos; /* Current position. */
229 typedef struct toklist toklist;
236 typedef struct cpp_context cpp_context;
239 /* Doubly-linked list. */
240 cpp_context *next, *prev;
242 /* Contexts other than the base context are contiguous tokens.
243 e.g. macro expansions, expanded argument tokens. */
246 /* For a macro context, these are the macro and its arguments. */
250 /* A standalone character. We may want to make it unsigned for the
251 same reason we use unsigned char - to avoid signedness issues. */
252 typedef int cppchar_t;
254 /* Maximum nesting of cpp_buffers. We use a static limit, partly for
255 efficiency, and partly to limit runaway recursion. */
256 #define CPP_STACK_MAX 200
258 /* Values for opts.dump_macros.
259 dump_only means inhibit output of the preprocessed text
260 and instead output the definitions of all user-defined
261 macros in a form suitable for use as input to cpp.
262 dump_names means pass #define and the macro name through to output.
263 dump_definitions means pass the whole definition (plus #define) through
265 enum { dump_none = 0, dump_only, dump_names, dump_definitions };
267 /* This structure is nested inside struct cpp_reader, and
268 carries all the options visible to the command line. */
271 /* Name of input and output files. */
272 const char *in_fname;
273 const char *out_fname;
275 /* Characters between tab stops. */
276 unsigned int tabstop;
278 /* Pending options - -D, -U, -A, -I, -ixxx. */
279 struct cpp_pending *pending;
281 /* File name which deps are being written to. This is 0 if deps are
282 being written to stdout. */
283 const char *deps_file;
285 /* Search paths for include files. */
286 struct file_name_list *quote_include; /* First dir to search for "file" */
287 struct file_name_list *bracket_include;/* First dir to search for <file> */
289 /* Map between header names and file names, used only on DOS where
290 file names are limited in length. */
291 struct file_name_map_list *map_list;
293 /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
294 in the standard include file directories. */
295 const char *include_prefix;
296 unsigned int include_prefix_len;
298 /* -fleading_underscore sets this to "_". */
299 const char *user_label_prefix;
301 /* The language we're preprocessing. */
304 /* Non-0 means -v, so print the full set of include dirs. */
305 unsigned char verbose;
307 /* Nonzero means use extra default include directories for C++. */
308 unsigned char cplusplus;
310 /* Nonzero means handle cplusplus style comments */
311 unsigned char cplusplus_comments;
313 /* Nonzero means handle #import, for objective C. */
316 /* Nonzero means don't copy comments into the output file. */
317 unsigned char discard_comments;
319 /* Nonzero means process the ISO trigraph sequences. */
320 unsigned char trigraphs;
322 /* Nonzero means process the ISO digraph sequences. */
323 unsigned char digraphs;
325 /* Nonzero means to allow hexadecimal floats and LL suffixes. */
326 unsigned char extended_numbers;
328 /* Nonzero means print the names of included files rather than the
329 preprocessed output. 1 means just the #include "...", 2 means
330 #include <...> as well. */
331 unsigned char print_deps;
333 /* Nonzero if phony targets are created for each header. */
334 unsigned char deps_phony_targets;
336 /* Nonzero if missing .h files in -M output are assumed to be
337 generated files and not errors. */
338 unsigned char print_deps_missing_files;
340 /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
341 unsigned char print_deps_append;
343 /* Nonzero means print names of header files (-H). */
344 unsigned char print_include_names;
346 /* Nonzero means cpp_pedwarn causes a hard error. */
347 unsigned char pedantic_errors;
349 /* Nonzero means don't print warning messages. */
350 unsigned char inhibit_warnings;
352 /* Nonzero means don't suppress warnings from system headers. */
353 unsigned char warn_system_headers;
355 /* Nonzero means don't print error messages. Has no option to
356 select it, but can be set by a user of cpplib (e.g. fix-header). */
357 unsigned char inhibit_errors;
359 /* Nonzero means warn if slash-star appears in a comment. */
360 unsigned char warn_comments;
362 /* Nonzero means warn if there are any trigraphs. */
363 unsigned char warn_trigraphs;
365 /* Nonzero means warn if #import is used. */
366 unsigned char warn_import;
368 /* Nonzero means warn about various incompatibilities with
370 unsigned char warn_traditional;
372 /* Nonzero means turn warnings into errors. */
373 unsigned char warnings_are_errors;
375 /* Nonzero causes output not to be done, but directives such as
376 #define that have side effects are still obeyed. */
377 unsigned char no_output;
379 /* Nonzero means we should look for header.gcc files that remap file
383 /* Nonzero means don't output line number information. */
384 unsigned char no_line_commands;
386 /* Nonzero means -I- has been seen, so don't look for #include "foo"
387 the source-file directory. */
388 unsigned char ignore_srcdir;
390 /* Zero means dollar signs are punctuation. */
391 unsigned char dollars_in_ident;
393 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
394 unsigned char warn_undef;
396 /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */
399 /* Nonzero means give all the error messages the ANSI standard requires. */
400 unsigned char pedantic;
402 /* Nonzero means we're looking at already preprocessed code, so don't
403 bother trying to do macro expansion and whatnot. */
404 unsigned char preprocessed;
406 /* Nonzero disables all the standard directories for headers. */
407 unsigned char no_standard_includes;
409 /* Nonzero disables the C++-specific standard directories for headers. */
410 unsigned char no_standard_cplusplus_includes;
412 /* Nonzero means dump macros in some fashion - see above. */
413 unsigned char dump_macros;
415 /* Nonzero means pass #include lines through to the output. */
416 unsigned char dump_includes;
418 /* Print column number in error messages. */
419 unsigned char show_column;
421 /* Treat C++ alternate operator names special. */
422 unsigned char operator_names;
424 /* True if --help, --version or --target-help appeared in the
425 options. Stand-alone CPP should then bail out after option
426 parsing; drivers might want to continue printing help. */
427 unsigned char help_only;
432 /* Nonzero if first token on line is CPP_HASH. */
433 unsigned char in_directive;
435 /* Nonzero if in a directive that takes angle-bracketed headers. */
436 unsigned char angled_headers;
438 /* Nonzero to save comments. Turned off if discard_comments, and in
439 all directives apart from #define. */
440 unsigned char save_comments;
442 /* If nonzero the next token is at the beginning of the line. */
443 unsigned char next_bol;
445 /* Nonzero if we're mid-comment. */
446 unsigned char lexing_comment;
448 /* Nonzero if lexing __VA_ARGS__ is valid. */
449 unsigned char va_args_ok;
451 /* Nonzero if lexing poisoned identifiers is valid. */
452 unsigned char poisoned_ok;
454 /* Nonzero to prevent macro expansion. */
455 unsigned char prevent_expansion;
457 /* Nonzero when parsing arguments to a function-like macro. */
458 unsigned char parsing_args;
460 /* Nonzero when in a # NUMBER directive. */
461 unsigned char line_extension;
464 /* Special nodes - identifiers with predefined significance. */
467 cpp_hashnode *n_L; /* L"str" */
468 cpp_hashnode *n_defined; /* defined operator */
469 cpp_hashnode *n__Pragma; /* _Pragma operator */
470 cpp_hashnode *n__STRICT_ANSI__; /* STDC_0_IN_SYSTEM_HEADERS */
471 cpp_hashnode *n__CHAR_UNSIGNED__; /* plain char is unsigned */
472 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */
475 /* This structure is passed to the call back when changing file. */
476 enum cpp_fc_reason {FC_ENTER = 0, FC_LEAVE, FC_RENAME};
480 const char *filename;
484 typedef struct cpp_file_change cpp_file_change;
485 struct cpp_file_change
487 struct cpp_file_loc from; /* Line of #include or #line. */
488 struct cpp_file_loc to; /* Line after #include or #line, or start. */
489 enum cpp_fc_reason reason; /* Reason for change. */
490 unsigned char sysp; /* Nonzero if system header. */
491 unsigned char externc; /* Nonzero if wrapper needed. */
497 void (*file_change) PARAMS ((cpp_reader *, const cpp_file_change *));
498 void (*include) PARAMS ((cpp_reader *, const unsigned char *,
500 void (*define) PARAMS ((cpp_reader *, cpp_hashnode *));
501 void (*undef) PARAMS ((cpp_reader *, cpp_hashnode *));
502 void (*poison) PARAMS ((cpp_reader *));
503 void (*ident) PARAMS ((cpp_reader *, const cpp_string *));
504 void (*def_pragma) PARAMS ((cpp_reader *));
507 /* A cpp_reader encapsulates the "state" of a pre-processor run.
508 Applying cpp_get_token repeatedly yields a stream of pre-processor
509 tokens. Usually, there is only one cpp_reader object active. */
513 /* Top of buffer stack. */
517 struct lexer_state state;
519 /* The position of the last lexed token and last lexed directive. */
520 cpp_lexer_pos lexer_pos;
521 cpp_lexer_pos directive_pos;
524 cpp_pool ident_pool; /* For all identifiers, and permanent
525 numbers and strings. */
526 cpp_pool macro_pool; /* For macro definitions. Permanent. */
527 cpp_pool argument_pool; /* For macro arguments. Temporary. */
530 struct cpp_context base_context;
531 struct cpp_context *context;
533 /* If in_directive, the directive if known. */
534 const struct directive *directive;
536 /* Multiple inlcude optimisation. */
537 enum mi_state mi_state;
538 enum mi_ind mi_if_not_defined;
539 unsigned int mi_lexed;
540 const cpp_hashnode *mi_cmacro;
541 const cpp_hashnode *mi_ind_cmacro;
543 /* Token lookahead. */
544 struct cpp_lookahead *la_read; /* Read from this lookahead. */
545 struct cpp_lookahead *la_write; /* Write to this lookahead. */
546 struct cpp_lookahead *la_unused; /* Free store. */
547 struct cpp_lookahead *la_saved; /* Backup when entering directive. */
549 /* Error counter for exit code. */
552 /* Line and column where a newline was first seen in a string
553 constant (multi-line strings). */
554 cpp_lexer_pos mlstring_pos;
556 /* Buffer to hold macro definition string. */
557 unsigned char *macro_buffer;
558 unsigned int macro_buffer_len;
560 /* Current depth in #include directives that use <...>. */
561 unsigned int system_include_depth;
563 /* Current depth of buffer stack. */
564 unsigned int buffer_stack_depth;
566 /* Current depth in #include directives. */
567 unsigned int include_depth;
569 /* Hash table of macros and assertions. See cpphash.c. */
570 struct htab *hashtab;
572 /* Tree of other included files. See cppfiles.c. */
573 struct splay_tree_s *all_include_files;
575 /* Chain of `actual directory' file_name_list entries, for ""
577 struct file_name_list *actual_dirs;
579 /* Current maximum length of directory names in the search path
580 for include files. (Altered as we get more of them.) */
581 unsigned int max_include_len;
583 /* Date and time tokens. Calculated together if either is requested. */
587 /* Opaque handle to the dependencies of mkdeps.c. Used by -M etc. */
590 /* Obstack holding all macro hash nodes. This never shrinks.
592 struct obstack *hash_ob;
594 /* Obstack holding buffer and conditional structures. This is a
595 real stack. See cpplib.c */
596 struct obstack *buffer_ob;
598 /* Pragma table - dynamic, because a library user can add to the
599 list of recognized pragmas. */
600 struct pragma_entry *pragmas;
603 struct cpp_callbacks cb;
605 /* User visible options. */
606 struct cpp_options opts;
608 /* Special nodes - identifiers with predefined significance to the
610 struct spec_nodes spec_nodes;
612 /* We're printed a warning recommending against using #import. */
613 unsigned char import_warning;
615 /* True after cpp_start_read completes. Used to inhibit some
616 warnings while parsing the command line. */
617 unsigned char done_initializing;
619 /* True if we are skipping a failed conditional group. */
620 unsigned char skipping;
623 #define CPP_FATAL_LIMIT 1000
624 /* True if we have seen a "fatal" error. */
625 #define CPP_FATAL_ERRORS(PFILE) (cpp_errors (PFILE) >= CPP_FATAL_LIMIT)
627 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION)
628 #define CPP_BUFFER(PFILE) ((PFILE)->buffer)
629 #define CPP_BUF_LINE(BUF) ((BUF)->lineno)
630 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base + (BUF)->col_adjust)
631 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur)
633 /* Name under which this program was invoked. */
634 extern const char *progname;
636 /* Where does this buffer come from? A faked include, a source file,
637 a builtin macro, a command-line option, or a _Pragma operator. */
638 enum cpp_buffer_type {BUF_FAKE, BUF_FILE, BUF_BUILTIN,
639 BUF_CL_OPTION, BUF_PRAGMA};
641 /* The structure of a node in the hash table. The hash table has
642 entries for all identifiers: either macros defined by #define
643 commands (type NT_MACRO), assertions created with #assert
644 (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros
645 like __LINE__ are flagged NODE_BUILTIN. Poisioned identifiers are
646 flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an
647 identifier that behaves like an operator such as "xor".
648 NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
649 diagnostic may be required for this node. Currently this only
650 applies to __VA_ARGS__ and poisoned identifiers. */
652 /* Hash node flags. */
653 #define NODE_OPERATOR (1 << 0) /* C++ named operator. */
654 #define NODE_POISONED (1 << 1) /* Poisoned identifier. */
655 #define NODE_BUILTIN (1 << 2) /* Builtin macro. */
656 #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */
658 /* Different flavors of hash node. */
661 NT_VOID = 0, /* No definition yet. */
662 NT_MACRO, /* A macro of some form. */
663 NT_ASSERTION /* Predicate for #assert. */
666 /* Different flavors of builtin macro. */
669 BT_SPECLINE = 0, /* `__LINE__' */
670 BT_DATE, /* `__DATE__' */
671 BT_FILE, /* `__FILE__' */
672 BT_BASE_FILE, /* `__BASE_FILE__' */
673 BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
674 BT_TIME, /* `__TIME__' */
675 BT_STDC /* `__STDC__' */
678 /* There is a slot in the hashnode for use by front ends when integrated
679 with cpplib. It holds a tree (see tree.h) but we mustn't drag that
680 header into every user of cpplib.h. cpplib does not do anything with
681 this slot except clear it when a new node is created. */
686 const unsigned char *name; /* Null-terminated name. */
687 unsigned int hash; /* Cached hash value. */
688 unsigned short length; /* Length of name excluding null. */
689 unsigned short arg_index; /* Macro argument index. */
690 unsigned char directive_index; /* Index into directive table. */
691 ENUM_BITFIELD(node_type) type : 8; /* Node type. */
692 unsigned char flags; /* Node flags. */
696 cpp_macro *macro; /* If a macro. */
697 struct answer *answers; /* Answers to an assertion. */
698 enum cpp_ttype operator; /* Code for a named operator. */
699 enum builtin_type builtin; /* Code for a builtin macro. */
702 union tree_node *fe_value; /* Front end value. */
705 /* Call this first to get a handle to pass to other functions. */
706 extern cpp_reader *cpp_create_reader PARAMS ((enum c_lang));
708 /* Call these to get pointers to the options and callback structures
709 for a given reader. These pointers are good until you call
710 cpp_finish on that reader. You can either edit the callbacks
711 through the pointer returned from cpp_get_callbacks, or set them
712 with cpp_set_callbacks. */
713 extern cpp_options *cpp_get_options PARAMS ((cpp_reader *));
714 extern cpp_callbacks *cpp_get_callbacks PARAMS ((cpp_reader *));
715 extern void cpp_set_callbacks PARAMS ((cpp_reader *, cpp_callbacks *));
717 /* Now call cpp_handle_option[s] to handle 1[or more] switches. The
718 return value is the number of arguments used. If
719 cpp_handle_options returns without using all arguments, it couldn't
720 understand the next switch. When there are no switches left, you
721 must call cpp_post_options before calling cpp_start_read. Only
722 after cpp_post_options are the contents of the cpp_options
723 structure reliable. */
724 extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
725 extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
726 extern void cpp_post_options PARAMS ((cpp_reader *));
729 extern unsigned int cpp_errors PARAMS ((cpp_reader *));
731 extern unsigned int cpp_token_len PARAMS ((const cpp_token *));
732 extern unsigned char *cpp_token_as_text PARAMS ((cpp_reader *,
734 extern unsigned char *cpp_spell_token PARAMS ((cpp_reader *, const cpp_token *,
736 extern void cpp_register_pragma PARAMS ((cpp_reader *,
737 const char *, const char *,
738 void (*) PARAMS ((cpp_reader *))));
739 extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
741 extern int cpp_start_read PARAMS ((cpp_reader *, const char *));
742 extern void cpp_finish PARAMS ((cpp_reader *));
743 extern void cpp_cleanup PARAMS ((cpp_reader *));
744 extern int cpp_avoid_paste PARAMS ((cpp_reader *, const cpp_token *,
746 extern enum cpp_ttype cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *,
747 const cpp_token *, int *));
748 extern void cpp_get_token PARAMS ((cpp_reader *, cpp_token *));
749 extern const cpp_lexer_pos *cpp_get_line PARAMS ((cpp_reader *));
750 extern const unsigned char *cpp_macro_definition PARAMS ((cpp_reader *,
751 const cpp_hashnode *));
753 extern void cpp_define PARAMS ((cpp_reader *, const char *));
754 extern void cpp_assert PARAMS ((cpp_reader *, const char *));
755 extern void cpp_undef PARAMS ((cpp_reader *, const char *));
756 extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
758 extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
759 const unsigned char *, size_t,
760 enum cpp_buffer_type,
762 extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
763 extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
765 /* N.B. The error-message-printer prototypes have not been nicely
766 formatted because exgettext needs to see 'msgid' on the same line
767 as the name of the function in order to work properly. Only the
768 string argument gets a name in an effort to keep the lines from
769 getting ridiculously oversized. */
771 extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
773 extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
775 extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
777 extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
779 extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
781 extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
783 extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
785 extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
787 extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
789 extern void cpp_pedwarn_with_file_and_line PARAMS ((cpp_reader *, const char *, int, int, const char *msgid, ...))
791 extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
792 extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
795 extern int cpp_ideq PARAMS ((const cpp_token *,
797 extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
798 extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
799 extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
802 extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
803 const unsigned char *, size_t));
804 extern void cpp_forall_identifiers PARAMS ((cpp_reader *,
805 int (*) PARAMS ((cpp_reader *,
811 extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *, int));
812 extern void cpp_start_lookahead PARAMS ((cpp_reader *));
813 extern void cpp_stop_lookahead PARAMS ((cpp_reader *, int));
816 extern int cpp_included PARAMS ((cpp_reader *, const char *));
817 extern void cpp_make_system_header PARAMS ((cpp_reader *, int, int));
819 /* These are inline functions instead of macros so we can get type
821 typedef unsigned char U_CHAR;
822 #define U (const U_CHAR *) /* Intended use: U"string" */
824 static inline int ustrcmp PARAMS ((const U_CHAR *, const U_CHAR *));
825 static inline int ustrncmp PARAMS ((const U_CHAR *, const U_CHAR *,
827 static inline size_t ustrlen PARAMS ((const U_CHAR *));
828 static inline U_CHAR *uxstrdup PARAMS ((const U_CHAR *));
829 static inline U_CHAR *ustrchr PARAMS ((const U_CHAR *, int));
830 static inline int ufputs PARAMS ((const U_CHAR *, FILE *));
834 const U_CHAR *s1, *s2;
836 return strcmp ((const char *)s1, (const char *)s2);
841 const U_CHAR *s1, *s2;
844 return strncmp ((const char *)s1, (const char *)s2, n);
851 return strlen ((const char *)s1);
854 static inline U_CHAR *
858 return (U_CHAR *) xstrdup ((const char *)s1);
861 static inline U_CHAR *
866 return (U_CHAR *) strchr ((const char *)s1, c);
874 return fputs ((const char *)s, f);
880 #endif /* __GCC_CPPLIB__ */