internal.h revision 259405
1/* Part of CPP library. 2 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 3 Free Software Foundation, Inc. 4 5This program is free software; you can redistribute it and/or modify it 6under the terms of the GNU General Public License as published by the 7Free Software Foundation; either version 2, or (at your option) any 8later version. 9 10This program is distributed in the hope that it will be useful, 11but WITHOUT ANY WARRANTY; without even the implied warranty of 12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13GNU General Public License for more details. 14 15You should have received a copy of the GNU General Public License 16along with this program; if not, write to the Free Software 17Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 18 19/* This header defines all the internal data structures and functions 20 that need to be visible across files. It should not be used outside 21 cpplib. */ 22 23#ifndef LIBCPP_INTERNAL_H 24#define LIBCPP_INTERNAL_H 25 26#include "symtab.h" 27#include "cpp-id-data.h" 28 29#ifndef HAVE_ICONV_H 30#undef HAVE_ICONV 31#endif 32 33#if HAVE_ICONV 34#include <iconv.h> 35#else 36#define HAVE_ICONV 0 37typedef int iconv_t; /* dummy */ 38#endif 39 40struct directive; /* Deliberately incomplete. */ 41struct pending_option; 42struct op; 43struct _cpp_strbuf; 44 45typedef bool (*convert_f) (iconv_t, const unsigned char *, size_t, 46 struct _cpp_strbuf *); 47struct cset_converter 48{ 49 convert_f func; 50 iconv_t cd; 51}; 52 53#define BITS_PER_CPPCHAR_T (CHAR_BIT * sizeof (cppchar_t)) 54 55/* Test if a sign is valid within a preprocessing number. */ 56#define VALID_SIGN(c, prevc) \ 57 (((c) == '+' || (c) == '-') && \ 58 ((prevc) == 'e' || (prevc) == 'E' \ 59 || (((prevc) == 'p' || (prevc) == 'P') \ 60 && CPP_OPTION (pfile, extended_numbers)))) 61 62#define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION) 63#define CPP_BUFFER(PFILE) ((PFILE)->buffer) 64#define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base) 65#define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur) 66 67#define CPP_INCREMENT_LINE(PFILE, COLS_HINT) do { \ 68 const struct line_maps *line_table = PFILE->line_table; \ 69 const struct line_map *map = &line_table->maps[line_table->used-1]; \ 70 unsigned int line = SOURCE_LINE (map, line_table->highest_line); \ 71 linemap_line_start (PFILE->line_table, line + 1, COLS_HINT); \ 72 } while (0) 73 74/* Maximum nesting of cpp_buffers. We use a static limit, partly for 75 efficiency, and partly to limit runaway recursion. */ 76#define CPP_STACK_MAX 200 77 78/* Host alignment handling. */ 79struct dummy 80{ 81 char c; 82 union 83 { 84 double d; 85 int *p; 86 } u; 87}; 88 89#define DEFAULT_ALIGNMENT offsetof (struct dummy, u) 90#define CPP_ALIGN2(size, align) (((size) + ((align) - 1)) & ~((align) - 1)) 91#define CPP_ALIGN(size) CPP_ALIGN2 (size, DEFAULT_ALIGNMENT) 92 93#define _cpp_mark_macro_used(NODE) do { \ 94 if ((NODE)->type == NT_MACRO && !((NODE)->flags & NODE_BUILTIN)) \ 95 (NODE)->value.macro->used = 1; } while (0) 96 97/* A generic memory buffer, and operations on it. */ 98typedef struct _cpp_buff _cpp_buff; 99struct _cpp_buff 100{ 101 struct _cpp_buff *next; 102 unsigned char *base, *cur, *limit; 103}; 104 105extern _cpp_buff *_cpp_get_buff (cpp_reader *, size_t); 106extern void _cpp_release_buff (cpp_reader *, _cpp_buff *); 107extern void _cpp_extend_buff (cpp_reader *, _cpp_buff **, size_t); 108extern _cpp_buff *_cpp_append_extend_buff (cpp_reader *, _cpp_buff *, size_t); 109extern void _cpp_free_buff (_cpp_buff *); 110extern unsigned char *_cpp_aligned_alloc (cpp_reader *, size_t); 111extern unsigned char *_cpp_unaligned_alloc (cpp_reader *, size_t); 112 113#define BUFF_ROOM(BUFF) (size_t) ((BUFF)->limit - (BUFF)->cur) 114#define BUFF_FRONT(BUFF) ((BUFF)->cur) 115#define BUFF_LIMIT(BUFF) ((BUFF)->limit) 116 117/* #include types. */ 118enum include_type {IT_INCLUDE, IT_INCLUDE_NEXT, IT_IMPORT, IT_CMDLINE}; 119 120union utoken 121{ 122 const cpp_token *token; 123 const cpp_token **ptoken; 124}; 125 126/* A "run" of tokens; part of a chain of runs. */ 127typedef struct tokenrun tokenrun; 128struct tokenrun 129{ 130 tokenrun *next, *prev; 131 cpp_token *base, *limit; 132}; 133 134/* Accessor macros for struct cpp_context. */ 135#define FIRST(c) ((c)->u.iso.first) 136#define LAST(c) ((c)->u.iso.last) 137#define CUR(c) ((c)->u.trad.cur) 138#define RLIMIT(c) ((c)->u.trad.rlimit) 139 140typedef struct cpp_context cpp_context; 141struct cpp_context 142{ 143 /* Doubly-linked list. */ 144 cpp_context *next, *prev; 145 146 union 147 { 148 /* For ISO macro expansion. Contexts other than the base context 149 are contiguous tokens. e.g. macro expansions, expanded 150 argument tokens. */ 151 struct 152 { 153 union utoken first; 154 union utoken last; 155 } iso; 156 157 /* For traditional macro expansion. */ 158 struct 159 { 160 const unsigned char *cur; 161 const unsigned char *rlimit; 162 } trad; 163 } u; 164 165 /* If non-NULL, a buffer used for storage related to this context. 166 When the context is popped, the buffer is released. */ 167 _cpp_buff *buff; 168 169 /* For a macro context, the macro node, otherwise NULL. */ 170 cpp_hashnode *macro; 171 172 /* True if utoken element is token, else ptoken. */ 173 bool direct_p; 174}; 175 176struct lexer_state 177{ 178 /* Nonzero if first token on line is CPP_HASH. */ 179 unsigned char in_directive; 180 181 /* Nonzero if in a directive that will handle padding tokens itself. 182 #include needs this to avoid problems with computed include and 183 spacing between tokens. */ 184 unsigned char directive_wants_padding; 185 186 /* True if we are skipping a failed conditional group. */ 187 unsigned char skipping; 188 189 /* Nonzero if in a directive that takes angle-bracketed headers. */ 190 unsigned char angled_headers; 191 192 /* Nonzero if in a #if or #elif directive. */ 193 unsigned char in_expression; 194 195 /* Nonzero to save comments. Turned off if discard_comments, and in 196 all directives apart from #define. */ 197 unsigned char save_comments; 198 199 /* Nonzero if lexing __VA_ARGS__ is valid. */ 200 unsigned char va_args_ok; 201 202 /* Nonzero if lexing poisoned identifiers is valid. */ 203 unsigned char poisoned_ok; 204 205 /* Nonzero to prevent macro expansion. */ 206 unsigned char prevent_expansion; 207 208 /* Nonzero when parsing arguments to a function-like macro. */ 209 unsigned char parsing_args; 210 211 /* Nonzero if prevent_expansion is true only because output is 212 being discarded. */ 213 unsigned char discarding_output; 214 215 /* Nonzero to skip evaluating part of an expression. */ 216 unsigned int skip_eval; 217 218 /* Nonzero when handling a deferred pragma. */ 219 unsigned char in_deferred_pragma; 220 221 /* Nonzero if the deferred pragma being handled allows macro expansion. */ 222 unsigned char pragma_allow_expansion; 223}; 224 225/* Special nodes - identifiers with predefined significance. */ 226struct spec_nodes 227{ 228 cpp_hashnode *n_defined; /* defined operator */ 229 cpp_hashnode *n_true; /* C++ keyword true */ 230 cpp_hashnode *n_false; /* C++ keyword false */ 231 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */ 232}; 233 234typedef struct _cpp_line_note _cpp_line_note; 235struct _cpp_line_note 236{ 237 /* Location in the clean line the note refers to. */ 238 const unsigned char *pos; 239 240 /* Type of note. The 9 'from' trigraph characters represent those 241 trigraphs, '\\' an escaped newline, ' ' an escaped newline with 242 intervening space, and anything else is invalid. */ 243 unsigned int type; 244}; 245 246/* Represents the contents of a file cpplib has read in. */ 247struct cpp_buffer 248{ 249 const unsigned char *cur; /* Current location. */ 250 const unsigned char *line_base; /* Start of current physical line. */ 251 const unsigned char *next_line; /* Start of to-be-cleaned logical line. */ 252 253 const unsigned char *buf; /* Entire character buffer. */ 254 const unsigned char *rlimit; /* Writable byte at end of file. */ 255 256 _cpp_line_note *notes; /* Array of notes. */ 257 unsigned int cur_note; /* Next note to process. */ 258 unsigned int notes_used; /* Number of notes. */ 259 unsigned int notes_cap; /* Size of allocated array. */ 260 261 struct cpp_buffer *prev; 262 263 /* Pointer into the file table; non-NULL if this is a file buffer. 264 Used for include_next and to record control macros. */ 265 struct _cpp_file *file; 266 267 /* Saved value of __TIMESTAMP__ macro - date and time of last modification 268 of the assotiated file. */ 269 const unsigned char *timestamp; 270 271 /* Value of if_stack at start of this file. 272 Used to prohibit unmatched #endif (etc) in an include file. */ 273 struct if_stack *if_stack; 274 275 /* True if we need to get the next clean line. */ 276 bool need_line; 277 278 /* True if we have already warned about C++ comments in this file. 279 The warning happens only for C89 extended mode with -pedantic on, 280 or for -Wtraditional, and only once per file (otherwise it would 281 be far too noisy). */ 282 unsigned int warned_cplusplus_comments : 1; 283 284 /* True if we don't process trigraphs and escaped newlines. True 285 for preprocessed input, command line directives, and _Pragma 286 buffers. */ 287 unsigned int from_stage3 : 1; 288 289 /* At EOF, a buffer is automatically popped. If RETURN_AT_EOF is 290 true, a CPP_EOF token is then returned. Otherwise, the next 291 token from the enclosing buffer is returned. */ 292 unsigned int return_at_eof : 1; 293 294 /* One for a system header, two for a C system header file that therefore 295 needs to be extern "C" protected in C++, and zero otherwise. */ 296 unsigned char sysp; 297 298 /* The directory of the this buffer's file. Its NAME member is not 299 allocated, so we don't need to worry about freeing it. */ 300 struct cpp_dir dir; 301 302 /* Descriptor for converting from the input character set to the 303 source character set. */ 304 struct cset_converter input_cset_desc; 305}; 306 307/* A cpp_reader encapsulates the "state" of a pre-processor run. 308 Applying cpp_get_token repeatedly yields a stream of pre-processor 309 tokens. Usually, there is only one cpp_reader object active. */ 310struct cpp_reader 311{ 312 /* Top of buffer stack. */ 313 cpp_buffer *buffer; 314 315 /* Overlaid buffer (can be different after processing #include). */ 316 cpp_buffer *overlaid_buffer; 317 318 /* Lexer state. */ 319 struct lexer_state state; 320 321 /* Source line tracking. */ 322 struct line_maps *line_table; 323 324 /* The line of the '#' of the current directive. */ 325 source_location directive_line; 326 327 /* Memory buffers. */ 328 _cpp_buff *a_buff; /* Aligned permanent storage. */ 329 _cpp_buff *u_buff; /* Unaligned permanent storage. */ 330 _cpp_buff *free_buffs; /* Free buffer chain. */ 331 332 /* Context stack. */ 333 struct cpp_context base_context; 334 struct cpp_context *context; 335 336 /* If in_directive, the directive if known. */ 337 const struct directive *directive; 338 339 /* Token generated while handling a directive, if any. */ 340 cpp_token directive_result; 341 342 /* Search paths for include files. */ 343 struct cpp_dir *quote_include; /* "" */ 344 struct cpp_dir *bracket_include; /* <> */ 345 struct cpp_dir no_search_path; /* No path. */ 346 347 /* Chain of all hashed _cpp_file instances. */ 348 struct _cpp_file *all_files; 349 350 struct _cpp_file *main_file; 351 352 /* File and directory hash table. */ 353 struct htab *file_hash; 354 struct htab *dir_hash; 355 struct file_hash_entry *file_hash_entries; 356 unsigned int file_hash_entries_allocated, file_hash_entries_used; 357 358 /* Negative path lookup hash table. */ 359 struct htab *nonexistent_file_hash; 360 struct obstack nonexistent_file_ob; 361 362 /* Nonzero means don't look for #include "foo" the source-file 363 directory. */ 364 bool quote_ignores_source_dir; 365 366 /* Nonzero if any file has contained #pragma once or #import has 367 been used. */ 368 bool seen_once_only; 369 370 /* Multiple include optimization. */ 371 const cpp_hashnode *mi_cmacro; 372 const cpp_hashnode *mi_ind_cmacro; 373 bool mi_valid; 374 375 /* Lexing. */ 376 cpp_token *cur_token; 377 tokenrun base_run, *cur_run; 378 unsigned int lookaheads; 379 380 /* Nonzero prevents the lexer from re-using the token runs. */ 381 unsigned int keep_tokens; 382 383 /* Error counter for exit code. */ 384 unsigned int errors; 385 386 /* Buffer to hold macro definition string. */ 387 unsigned char *macro_buffer; 388 unsigned int macro_buffer_len; 389 390 /* Descriptor for converting from the source character set to the 391 execution character set. */ 392 struct cset_converter narrow_cset_desc; 393 394 /* Descriptor for converting from the source character set to the 395 wide execution character set. */ 396 struct cset_converter wide_cset_desc; 397 398 /* Date and time text. Calculated together if either is requested. */ 399 const unsigned char *date; 400 const unsigned char *time; 401 402 /* EOF token, and a token forcing paste avoidance. */ 403 cpp_token avoid_paste; 404 cpp_token eof; 405 406 /* Opaque handle to the dependencies of mkdeps.c. */ 407 struct deps *deps; 408 409 /* Obstack holding all macro hash nodes. This never shrinks. 410 See identifiers.c */ 411 struct obstack hash_ob; 412 413 /* Obstack holding buffer and conditional structures. This is a 414 real stack. See directives.c. */ 415 struct obstack buffer_ob; 416 417 /* Pragma table - dynamic, because a library user can add to the 418 list of recognized pragmas. */ 419 struct pragma_entry *pragmas; 420 421 /* Call backs to cpplib client. */ 422 struct cpp_callbacks cb; 423 424 /* Identifier hash table. */ 425 struct ht *hash_table; 426 427 /* Expression parser stack. */ 428 struct op *op_stack, *op_limit; 429 430 /* User visible options. */ 431 struct cpp_options opts; 432 433 /* Special nodes - identifiers with predefined significance to the 434 preprocessor. */ 435 struct spec_nodes spec_nodes; 436 437 /* Whether cpplib owns the hashtable. */ 438 bool our_hashtable; 439 440 /* Traditional preprocessing output buffer (a logical line). */ 441 struct 442 { 443 unsigned char *base; 444 unsigned char *limit; 445 unsigned char *cur; 446 source_location first_line; 447 } out; 448 449 /* Used for buffer overlays by traditional.c. */ 450 const unsigned char *saved_cur, *saved_rlimit, *saved_line_base; 451 452 /* A saved list of the defined macros, for dependency checking 453 of precompiled headers. */ 454 struct cpp_savedstate *savedstate; 455 456 unsigned int nextcounter; 457}; 458 459/* Character classes. Based on the more primitive macros in safe-ctype.h. 460 If the definition of `numchar' looks odd to you, please look up the 461 definition of a pp-number in the C standard [section 6.4.8 of C99]. 462 463 In the unlikely event that characters other than \r and \n enter 464 the set is_vspace, the macro handle_newline() in lex.c must be 465 updated. */ 466#define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident)) 467 468#define is_idchar(x) (ISIDNUM(x) || _dollar_ok(x)) 469#define is_numchar(x) ISIDNUM(x) 470#define is_idstart(x) (ISIDST(x) || _dollar_ok(x)) 471#define is_numstart(x) ISDIGIT(x) 472#define is_hspace(x) ISBLANK(x) 473#define is_vspace(x) IS_VSPACE(x) 474#define is_nvspace(x) IS_NVSPACE(x) 475#define is_space(x) IS_SPACE_OR_NUL(x) 476 477/* This table is constant if it can be initialized at compile time, 478 which is the case if cpp was compiled with GCC >=2.7, or another 479 compiler that supports C99. */ 480#if HAVE_DESIGNATED_INITIALIZERS 481extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; 482#else 483extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; 484#endif 485 486/* Macros. */ 487 488static inline int cpp_in_system_header (cpp_reader *); 489static inline int 490cpp_in_system_header (cpp_reader *pfile) 491{ 492 return pfile->buffer ? pfile->buffer->sysp : 0; 493} 494#define CPP_PEDANTIC(PF) CPP_OPTION (PF, pedantic) 495#define CPP_WTRADITIONAL(PF) CPP_OPTION (PF, warn_traditional) 496 497/* In errors.c */ 498extern int _cpp_begin_message (cpp_reader *, int, 499 source_location, unsigned int); 500 501/* In macro.c */ 502extern void _cpp_free_definition (cpp_hashnode *); 503extern bool _cpp_create_definition (cpp_reader *, cpp_hashnode *); 504extern void _cpp_pop_context (cpp_reader *); 505extern void _cpp_push_text_context (cpp_reader *, cpp_hashnode *, 506 const unsigned char *, size_t); 507extern bool _cpp_save_parameter (cpp_reader *, cpp_macro *, cpp_hashnode *); 508extern bool _cpp_arguments_ok (cpp_reader *, cpp_macro *, const cpp_hashnode *, 509 unsigned int); 510extern const unsigned char *_cpp_builtin_macro_text (cpp_reader *, 511 cpp_hashnode *); 512extern int _cpp_warn_if_unused_macro (cpp_reader *, cpp_hashnode *, void *); 513extern void _cpp_push_token_context (cpp_reader *, cpp_hashnode *, 514 const cpp_token *, unsigned int); 515 516/* In identifiers.c */ 517extern void _cpp_init_hashtable (cpp_reader *, hash_table *); 518extern void _cpp_destroy_hashtable (cpp_reader *); 519 520/* In files.c */ 521typedef struct _cpp_file _cpp_file; 522extern _cpp_file *_cpp_find_file (cpp_reader *, const char *, cpp_dir *, 523 bool, int); 524extern bool _cpp_find_failed (_cpp_file *); 525extern void _cpp_mark_file_once_only (cpp_reader *, struct _cpp_file *); 526extern void _cpp_fake_include (cpp_reader *, const char *); 527extern bool _cpp_stack_file (cpp_reader *, _cpp_file*, bool); 528extern bool _cpp_stack_include (cpp_reader *, const char *, int, 529 enum include_type); 530extern int _cpp_compare_file_date (cpp_reader *, const char *, int); 531extern void _cpp_report_missing_guards (cpp_reader *); 532extern void _cpp_init_files (cpp_reader *); 533extern void _cpp_cleanup_files (cpp_reader *); 534extern void _cpp_pop_file_buffer (cpp_reader *, struct _cpp_file *); 535extern bool _cpp_save_file_entries (cpp_reader *pfile, FILE *f); 536extern bool _cpp_read_file_entries (cpp_reader *, FILE *); 537extern struct stat *_cpp_get_file_stat (_cpp_file *); 538 539/* In expr.c */ 540extern bool _cpp_parse_expr (cpp_reader *); 541extern struct op *_cpp_expand_op_stack (cpp_reader *); 542 543/* In lex.c */ 544extern void _cpp_process_line_notes (cpp_reader *, int); 545extern void _cpp_clean_line (cpp_reader *); 546extern bool _cpp_get_fresh_line (cpp_reader *); 547extern bool _cpp_skip_block_comment (cpp_reader *); 548extern cpp_token *_cpp_temp_token (cpp_reader *); 549extern const cpp_token *_cpp_lex_token (cpp_reader *); 550extern cpp_token *_cpp_lex_direct (cpp_reader *); 551extern int _cpp_equiv_tokens (const cpp_token *, const cpp_token *); 552extern void _cpp_init_tokenrun (tokenrun *, unsigned int); 553 554/* In init.c. */ 555extern void _cpp_maybe_push_include_file (cpp_reader *); 556 557/* In directives.c */ 558extern int _cpp_test_assertion (cpp_reader *, unsigned int *); 559extern int _cpp_handle_directive (cpp_reader *, int); 560extern void _cpp_define_builtin (cpp_reader *, const char *); 561extern char ** _cpp_save_pragma_names (cpp_reader *); 562extern void _cpp_restore_pragma_names (cpp_reader *, char **); 563extern void _cpp_do__Pragma (cpp_reader *); 564extern void _cpp_init_directives (cpp_reader *); 565extern void _cpp_init_internal_pragmas (cpp_reader *); 566extern void _cpp_do_file_change (cpp_reader *, enum lc_reason, const char *, 567 unsigned int, unsigned int); 568extern void _cpp_pop_buffer (cpp_reader *); 569 570/* In directives.c */ 571struct _cpp_dir_only_callbacks 572{ 573 /* Called to print a block of lines. */ 574 void (*print_lines) (int, const void *, size_t); 575 void (*maybe_print_line) (source_location); 576}; 577 578extern void _cpp_preprocess_dir_only (cpp_reader *, 579 const struct _cpp_dir_only_callbacks *); 580 581/* In traditional.c. */ 582extern bool _cpp_scan_out_logical_line (cpp_reader *, cpp_macro *); 583extern bool _cpp_read_logical_line_trad (cpp_reader *); 584extern void _cpp_overlay_buffer (cpp_reader *pfile, const unsigned char *, 585 size_t); 586extern void _cpp_remove_overlay (cpp_reader *); 587extern bool _cpp_create_trad_definition (cpp_reader *, cpp_macro *); 588extern bool _cpp_expansions_different_trad (const cpp_macro *, 589 const cpp_macro *); 590extern unsigned char *_cpp_copy_replacement_text (const cpp_macro *, 591 unsigned char *); 592extern size_t _cpp_replacement_text_len (const cpp_macro *); 593 594/* In charset.c. */ 595 596/* The normalization state at this point in the sequence. 597 It starts initialized to all zeros, and at the end 598 'level' is the normalization level of the sequence. */ 599 600struct normalize_state 601{ 602 /* The previous character. */ 603 cppchar_t previous; 604 /* The combining class of the previous character. */ 605 unsigned char prev_class; 606 /* The lowest normalization level so far. */ 607 enum cpp_normalize_level level; 608}; 609#define INITIAL_NORMALIZE_STATE { 0, 0, normalized_KC } 610#define NORMALIZE_STATE_RESULT(st) ((st)->level) 611 612/* We saw a character that matches ISIDNUM(), update a 613 normalize_state appropriately. */ 614#define NORMALIZE_STATE_UPDATE_IDNUM(st) \ 615 ((st)->previous = 0, (st)->prev_class = 0) 616 617extern cppchar_t _cpp_valid_ucn (cpp_reader *, const unsigned char **, 618 const unsigned char *, int, 619 struct normalize_state *state); 620extern void _cpp_destroy_iconv (cpp_reader *); 621extern unsigned char *_cpp_convert_input (cpp_reader *, const char *, 622 unsigned char *, size_t, size_t, 623 off_t *); 624extern const char *_cpp_default_encoding (void); 625extern cpp_hashnode * _cpp_interpret_identifier (cpp_reader *pfile, 626 const unsigned char *id, 627 size_t len); 628 629/* Utility routines and macros. */ 630#define DSC(str) (const unsigned char *)str, sizeof str - 1 631 632/* These are inline functions instead of macros so we can get type 633 checking. */ 634static inline int ustrcmp (const unsigned char *, const unsigned char *); 635static inline int ustrncmp (const unsigned char *, const unsigned char *, 636 size_t); 637static inline size_t ustrlen (const unsigned char *); 638static inline unsigned char *uxstrdup (const unsigned char *); 639static inline unsigned char *ustrchr (const unsigned char *, int); 640static inline int ufputs (const unsigned char *, FILE *); 641 642/* Use a const char for the second parameter since it is usually a literal. */ 643static inline int ustrcspn (const unsigned char *, const char *); 644 645static inline int 646ustrcmp (const unsigned char *s1, const unsigned char *s2) 647{ 648 return strcmp ((const char *)s1, (const char *)s2); 649} 650 651static inline int 652ustrncmp (const unsigned char *s1, const unsigned char *s2, size_t n) 653{ 654 return strncmp ((const char *)s1, (const char *)s2, n); 655} 656 657static inline int 658ustrcspn (const unsigned char *s1, const char *s2) 659{ 660 return strcspn ((const char *)s1, s2); 661} 662 663static inline size_t 664ustrlen (const unsigned char *s1) 665{ 666 return strlen ((const char *)s1); 667} 668 669static inline unsigned char * 670uxstrdup (const unsigned char *s1) 671{ 672 return (unsigned char *) xstrdup ((const char *)s1); 673} 674 675static inline unsigned char * 676ustrchr (const unsigned char *s1, int c) 677{ 678 return (unsigned char *) strchr ((const char *)s1, c); 679} 680 681static inline int 682ufputs (const unsigned char *s, FILE *f) 683{ 684 return fputs ((const char *)s, f); 685} 686 687#endif /* ! LIBCPP_INTERNAL_H */ 688