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/usr/include/argp.h
$ cat -n /usr/include/argp.h 1 /* Hierarchical argument parsing, layered over getopt. 2 Copyright (C) 1995-2024 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 Written by Miles Bader <miles@gnu.ai.mit.edu>. 5 6 The GNU C Library is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Lesser General Public 8 License as published by the Free Software Foundation; either 9 version 2.1 of the License, or (at your option) any later version. 10 11 The GNU C Library 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 GNU 14 Lesser General Public License for more details. 15 16 You should have received a copy of the GNU Lesser General Public 17 License along with the GNU C Library; if not, see 18 <https://www.gnu.org/licenses/>. */ 19 20 #ifndef _ARGP_H 21 #define _ARGP_H 22 23 #include <stdio.h> 24 #include <ctype.h> 25 #include <getopt.h> 26 #include <limits.h> 27 #include <errno.h> 28 29 __BEGIN_DECLS 30 31 /* error_t may or may not be available from errno.h, depending on the 32 operating system. */ 33 #ifndef __error_t_defined 34 # define __error_t_defined 1 35 typedef int error_t; 36 #endif 37 38 /* A description of a particular option. A pointer to an array of 39 these is passed in the OPTIONS field of an argp structure. Each option 40 entry can correspond to one long option and/or one short option; more 41 names for the same option can be added by following an entry in an option 42 array with options having the OPTION_ALIAS flag set. */ 43 struct argp_option 44 { 45 /* The long option name. For more than one name for the same option, you 46 can use following options with the OPTION_ALIAS flag set. */ 47 const char *name; 48 49 /* What key is returned for this option. If > 0 and printable, then it's 50 also accepted as a short option. */ 51 int key; 52 53 /* If non-NULL, this is the name of the argument associated with this 54 option, which is required unless the OPTION_ARG_OPTIONAL flag is set. */ 55 const char *arg; 56 57 /* OPTION_ flags. */ 58 int flags; 59 60 /* The doc string for this option. If both NAME and KEY are 0, This string 61 will be printed outdented from the normal option column, making it 62 useful as a group header (it will be the first thing printed in its 63 group); in this usage, it's conventional to end the string with a `:'. */ 64 const char *doc; 65 66 /* The group this option is in. In a long help message, options are sorted 67 alphabetically within each group, and the groups presented in the order 68 0, 1, 2, ..., n, -m, ..., -2, -1. Every entry in an options array with 69 if this field 0 will inherit the group number of the previous entry, or 70 zero if it's the first one, unless its a group header (NAME and KEY both 71 0), in which case, the previous entry + 1 is the default. Automagic 72 options such as --help are put into group -1. */ 73 int group; 74 }; 75 76 /* The argument associated with this option is optional. */ 77 #define OPTION_ARG_OPTIONAL 0x1 78 79 /* This option isn't displayed in any help messages. */ 80 #define OPTION_HIDDEN 0x2 81 82 /* This option is an alias for the closest previous non-alias option. This 83 means that it will be displayed in the same help entry, and will inherit 84 fields other than NAME and KEY from the aliased option. */ 85 #define OPTION_ALIAS 0x4 86 87 /* This option isn't actually an option (and so should be ignored by the 88 actual option parser), but rather an arbitrary piece of documentation that 89 should be displayed in much the same manner as the options. If this flag 90 is set, then the option NAME field is displayed unmodified (e.g., no `--' 91 prefix is added) at the left-margin (where a *short* option would normally 92 be displayed), and the documentation string in the normal place. For 93 purposes of sorting, any leading whitespace and punctuation is ignored, 94 except that if the first non-whitespace character is not `-', this entry 95 is displayed after all options (and OPTION_DOC entries with a leading `-') 96 in the same group. */ 97 #define OPTION_DOC 0x8 98 99 /* This option shouldn't be included in `long' usage messages (but is still 100 included in help messages). This is mainly intended for options that are 101 completely documented in an argp's ARGS_DOC field, in which case including 102 the option in the generic usage list would be redundant. For instance, 103 if ARGS_DOC is "FOO BAR\n-x BLAH", and the `-x' option's purpose is to 104 distinguish these two cases, -x should probably be marked 105 OPTION_NO_USAGE. */ 106 #define OPTION_NO_USAGE 0x10 107 108 struct argp; /* fwd declare this type */ 109 struct argp_state; /* " */ 110 struct argp_child; /* " */ 111 112 /* The type of a pointer to an argp parsing function. */ 113 typedef error_t (*argp_parser_t) (int __key, char *__arg, 114 struct argp_state *__state); 115 116 /* What to return for unrecognized keys. For special ARGP_KEY_ keys, such 117 returns will simply be ignored. For user keys, this error will be turned 118 into EINVAL (if the call to argp_parse is such that errors are propagated 119 back to the user instead of exiting); returning EINVAL itself would result 120 in an immediate stop to parsing in *all* cases. */ 121 #define ARGP_ERR_UNKNOWN E2BIG /* Hurd should never need E2BIG. XXX */ 122 123 /* Special values for the KEY argument to an argument parsing function. 124 ARGP_ERR_UNKNOWN should be returned if they aren't understood. 125 126 The sequence of keys to a parsing function is either (where each 127 uppercased word should be prefixed by `ARGP_KEY_' and opt is a user key): 128 129 INIT opt... NO_ARGS END SUCCESS -- No non-option arguments at all 130 or INIT (opt | ARG)... END SUCCESS -- All non-option args parsed 131 or INIT (opt | ARG)... SUCCESS -- Some non-option arg unrecognized 132 133 The third case is where every parser returned ARGP_KEY_UNKNOWN for an 134 argument, in which case parsing stops at that argument (returning the 135 unparsed arguments to the caller of argp_parse if requested, or stopping 136 with an error message if not). 137 138 If an error occurs (either detected by argp, or because the parsing 139 function returned an error value), then the parser is called with 140 ARGP_KEY_ERROR, and no further calls are made. */ 141 142 /* This is not an option at all, but rather a command line argument. If a 143 parser receiving this key returns success, the fact is recorded, and the 144 ARGP_KEY_NO_ARGS case won't be used. HOWEVER, if while processing the 145 argument, a parser function decrements the NEXT field of the state it's 146 passed, the option won't be considered processed; this is to allow you to 147 actually modify the argument (perhaps into an option), and have it 148 processed again. */ 149 #define ARGP_KEY_ARG 0 150 /* There are remaining arguments not parsed by any parser, which may be found 151 starting at (STATE->argv + STATE->next). If success is returned, but 152 STATE->next left untouched, it's assumed that all arguments were consume, 153 otherwise, the parser should adjust STATE->next to reflect any arguments 154 consumed. */ 155 #define ARGP_KEY_ARGS 0x1000006 156 /* There are no more command line arguments at all. */ 157 #define ARGP_KEY_END 0x1000001 158 /* Because it's common to want to do some special processing if there aren't 159 any non-option args, user parsers are called with this key if they didn't 160 successfully process any non-option arguments. Called just before 161 ARGP_KEY_END (where more general validity checks on previously parsed 162 arguments can take place). */ 163 #define ARGP_KEY_NO_ARGS 0x1000002 164 /* Passed in before any parsing is done. Afterwards, the values of each 165 element of the CHILD_INPUT field, if any, in the state structure is 166 copied to each child's state to be the initial value of the INPUT field. */ 167 #define ARGP_KEY_INIT 0x1000003 168 /* Use after all other keys, including SUCCESS & END. */ 169 #define ARGP_KEY_FINI 0x1000007 170 /* Passed in when parsing has successfully been completed (even if there are 171 still arguments remaining). */ 172 #define ARGP_KEY_SUCCESS 0x1000004 173 /* Passed in if an error occurs. */ 174 #define ARGP_KEY_ERROR 0x1000005 175 176 /* An argp structure contains a set of options declarations, a function to 177 deal with parsing one, documentation string, a possible vector of child 178 argp's, and perhaps a function to filter help output. When actually 179 parsing options, getopt is called with the union of all the argp 180 structures chained together through their CHILD pointers, with conflicts 181 being resolved in favor of the first occurrence in the chain. */ 182 struct argp 183 { 184 /* An array of argp_option structures, terminated by an entry with both 185 NAME and KEY having a value of 0. */ 186 const struct argp_option *options; 187 188 /* What to do with an option from this structure. KEY is the key 189 associated with the option, and ARG is any associated argument (NULL if 190 none was supplied). If KEY isn't understood, ARGP_ERR_UNKNOWN should be 191 returned. If a non-zero, non-ARGP_ERR_UNKNOWN value is returned, then 192 parsing is stopped immediately, and that value is returned from 193 argp_parse(). For special (non-user-supplied) values of KEY, see the 194 ARGP_KEY_ definitions below. */ 195 argp_parser_t parser; 196 197 /* A string describing what other arguments are wanted by this program. It 198 is only used by argp_usage to print the `Usage:' message. If it 199 contains newlines, the strings separated by them are considered 200 alternative usage patterns, and printed on separate lines (lines after 201 the first are prefix by ` or: ' instead of `Usage:'). */ 202 const char *args_doc; 203 204 /* If non-NULL, a string containing extra text to be printed before and 205 after the options in a long help message (separated by a vertical tab 206 `\v' character). */ 207 const char *doc; 208 209 /* A vector of argp_children structures, terminated by a member with a 0 210 argp field, pointing to child argps should be parsed with this one. Any 211 conflicts are resolved in favor of this argp, or early argps in the 212 CHILDREN list. This field is useful if you use libraries that supply 213 their own argp structure, which you want to use in conjunction with your 214 own. */ 215 const struct argp_child *children; 216 217 /* If non-zero, this should be a function to filter the output of help 218 messages. KEY is either a key from an option, in which case TEXT is 219 that option's help text, or a special key from the ARGP_KEY_HELP_ 220 defines, below, describing which other help text TEXT is. The function 221 should return either TEXT, if it should be used as-is, a replacement 222 string, which should be malloced, and will be freed by argp, or NULL, 223 meaning `print nothing'. The value for TEXT is *after* any translation 224 has been done, so if any of the replacement text also needs translation, 225 that should be done by the filter function. INPUT is either the input 226 supplied to argp_parse, or NULL, if argp_help was called directly. */ 227 char *(*help_filter) (int __key, const char *__text, void *__input); 228 229 /* If non-zero the strings used in the argp library are translated using 230 the domain described by this string. Otherwise the currently installed 231 default domain is used. */ 232 const char *argp_domain; 233 }; 234 235 /* Possible KEY arguments to a help filter function. */ 236 #define ARGP_KEY_HELP_PRE_DOC 0x2000001 /* Help text preceding options. */ 237 #define ARGP_KEY_HELP_POST_DOC 0x2000002 /* Help text following options. */ 238 #define ARGP_KEY_HELP_HEADER 0x2000003 /* Option header string. */ 239 #define ARGP_KEY_HELP_EXTRA 0x2000004 /* After all other documentation; 240 TEXT is NULL for this key. */ 241 /* Explanatory note emitted when duplicate option arguments have been 242 suppressed. */ 243 #define ARGP_KEY_HELP_DUP_ARGS_NOTE 0x2000005 244 #define ARGP_KEY_HELP_ARGS_DOC 0x2000006 /* Argument doc string. */ 245 246 /* When an argp has a non-zero CHILDREN field, it should point to a vector of 247 argp_child structures, each of which describes a subsidiary argp. */ 248 struct argp_child 249 { 250 /* The child parser. */ 251 const struct argp *argp; 252 253 /* Flags for this child. */ 254 int flags; 255 256 /* If non-zero, an optional header to be printed in help output before the 257 child options. As a side-effect, a non-zero value forces the child 258 options to be grouped together; to achieve this effect without actually 259 printing a header string, use a value of "". */ 260 const char *header; 261 262 /* Where to group the child options relative to the other (`consolidated') 263 options in the parent argp; the values are the same as the GROUP field 264 in argp_option structs, but all child-groupings follow parent options at 265 a particular group level. If both this field and HEADER are zero, then 266 they aren't grouped at all, but rather merged with the parent options 267 (merging the child's grouping levels with the parents). */ 268 int group; 269 }; 270 271 /* Parsing state. This is provided to parsing functions called by argp, 272 which may examine and, as noted, modify fields. */ 273 struct argp_state 274 { 275 /* The top level ARGP being parsed. */ 276 const struct argp *root_argp; 277 278 /* The argument vector being parsed. May be modified. */ 279 int argc; 280 char **argv; 281 282 /* The index in ARGV of the next arg that to be parsed. May be modified. */ 283 int next; 284 285 /* The flags supplied to argp_parse. May be modified. */ 286 unsigned flags; 287 288 /* While calling a parsing function with a key of ARGP_KEY_ARG, this is the 289 number of the current arg, starting at zero, and incremented after each 290 such call returns. At all other times, this is the number of such 291 arguments that have been processed. */ 292 unsigned arg_num; 293 294 /* If non-zero, the index in ARGV of the first argument following a special 295 `--' argument (which prevents anything following being interpreted as an 296 option). Only set once argument parsing has proceeded past this point. */ 297 int quoted; 298 299 /* An arbitrary pointer passed in from the user. */ 300 void *input; 301 /* Values to pass to child parsers. This vector will be the same length as 302 the number of children for the current parser. */ 303 void **child_inputs; 304 305 /* For the parser's use. Initialized to 0. */ 306 void *hook; 307 308 /* The name used when printing messages. This is initialized to ARGV[0], 309 or PROGRAM_INVOCATION_NAME if that is unavailable. */ 310 char *name; 311 312 /* Streams used when argp prints something. */ 313 FILE *err_stream; /* For errors; initialized to stderr. */ 314 FILE *out_stream; /* For information; initialized to stdout. */ 315 316 void *pstate; /* Private, for use by argp. */ 317 }; 318 319 /* Flags for argp_parse (note that the defaults are those that are 320 convenient for program command line parsing): */ 321 322 /* Don't ignore the first element of ARGV. Normally (and always unless 323 ARGP_NO_ERRS is set) the first element of the argument vector is 324 skipped for option parsing purposes, as it corresponds to the program name 325 in a command line. */ 326 #define ARGP_PARSE_ARGV0 0x01 327 328 /* Don't print error messages for unknown options to stderr; unless this flag 329 is set, ARGP_PARSE_ARGV0 is ignored, as ARGV[0] is used as the program 330 name in the error messages. This flag implies ARGP_NO_EXIT (on the 331 assumption that silent exiting upon errors is bad behaviour). */ 332 #define ARGP_NO_ERRS 0x02 333 334 /* Don't parse any non-option args. Normally non-option args are parsed by 335 calling the parse functions with a key of ARGP_KEY_ARG, and the actual arg 336 as the value. Since it's impossible to know which parse function wants to 337 handle it, each one is called in turn, until one returns 0 or an error 338 other than ARGP_ERR_UNKNOWN; if an argument is handled by no one, the 339 argp_parse returns prematurely (but with a return value of 0). If all 340 args have been parsed without error, all parsing functions are called one 341 last time with a key of ARGP_KEY_END. This flag needn't normally be set, 342 as the normal behavior is to stop parsing as soon as some argument can't 343 be handled. */ 344 #define ARGP_NO_ARGS 0x04 345 346 /* Parse options and arguments in the same order they occur on the command 347 line -- normally they're rearranged so that all options come first. */ 348 #define ARGP_IN_ORDER 0x08 349 350 /* Don't provide the standard long option --help, which causes usage and 351 option help information to be output to stdout, and exit (0) called. */ 352 #define ARGP_NO_HELP 0x10 353 354 /* Don't exit on errors (they may still result in error messages). */ 355 #define ARGP_NO_EXIT 0x20 356 357 /* Use the gnu getopt `long-only' rules for parsing arguments. */ 358 #define ARGP_LONG_ONLY 0x40 359 360 /* Turns off any message-printing/exiting options. */ 361 #define ARGP_SILENT (ARGP_NO_EXIT | ARGP_NO_ERRS | ARGP_NO_HELP) 362 363 /* Parse the options strings in ARGC & ARGV according to the options in ARGP. 364 FLAGS is one of the ARGP_ flags above. If ARG_INDEX is non-NULL, the 365 index in ARGV of the first unparsed option is returned in it. If an 366 unknown option is present, ARGP_ERR_UNKNOWN is returned; if some parser 367 routine returned a non-zero value, it is returned; otherwise 0 is 368 returned. This function may also call exit unless the ARGP_NO_HELP flag 369 is set. INPUT is a pointer to a value to be passed in to the parser. */ 370 extern error_t argp_parse (const struct argp *__restrict __argp, 371 int __argc, char **__restrict __argv, 372 unsigned __flags, int *__restrict __arg_index, 373 void *__restrict __input); 374 extern error_t __argp_parse (const struct argp *__restrict __argp, 375 int __argc, char **__restrict __argv, 376 unsigned __flags, int *__restrict __arg_index, 377 void *__restrict __input); 378 379 /* Global variables. */ 380 381 /* If defined or set by the user program to a non-zero value, then a default 382 option --version is added (unless the ARGP_NO_HELP flag is used), which 383 will print this string followed by a newline and exit (unless the 384 ARGP_NO_EXIT flag is used). Overridden by ARGP_PROGRAM_VERSION_HOOK. */ 385 extern const char *argp_program_version; 386 387 /* If defined or set by the user program to a non-zero value, then a default 388 option --version is added (unless the ARGP_NO_HELP flag is used), which 389 calls this function with a stream to print the version to and a pointer to 390 the current parsing state, and then exits (unless the ARGP_NO_EXIT flag is 391 used). This variable takes precedent over ARGP_PROGRAM_VERSION. */ 392 extern void (*argp_program_version_hook) (FILE *__restrict __stream, 393 struct argp_state *__restrict 394 __state); 395 396 /* If defined or set by the user program, it should point to string that is 397 the bug-reporting address for the program. It will be printed by 398 argp_help if the ARGP_HELP_BUG_ADDR flag is set (as it is by various 399 standard help messages), embedded in a sentence that says something like 400 `Report bugs to ADDR.'. */ 401 extern const char *argp_program_bug_address; 402 403 /* The exit status that argp will use when exiting due to a parsing error. 404 If not defined or set by the user program, this defaults to EX_USAGE from 405 <sysexits.h>. */ 406 extern error_t argp_err_exit_status; 407 408 /* Flags for argp_help. */ 409 #define ARGP_HELP_USAGE 0x01 /* a Usage: message. */ 410 #define ARGP_HELP_SHORT_USAGE 0x02 /* " but don't actually print options. */ 411 #define ARGP_HELP_SEE 0x04 /* a `Try ... for more help' message. */ 412 #define ARGP_HELP_LONG 0x08 /* a long help message. */ 413 #define ARGP_HELP_PRE_DOC 0x10 /* doc string preceding long help. */ 414 #define ARGP_HELP_POST_DOC 0x20 /* doc string following long help. */ 415 #define ARGP_HELP_DOC (ARGP_HELP_PRE_DOC | ARGP_HELP_POST_DOC) 416 #define ARGP_HELP_BUG_ADDR 0x40 /* bug report address */ 417 #define ARGP_HELP_LONG_ONLY 0x80 /* modify output appropriately to 418 reflect ARGP_LONG_ONLY mode. */ 419 420 /* These ARGP_HELP flags are only understood by argp_state_help. */ 421 #define ARGP_HELP_EXIT_ERR 0x100 /* Call exit(1) instead of returning. */ 422 #define ARGP_HELP_EXIT_OK 0x200 /* Call exit(0) instead of returning. */ 423 424 /* The standard thing to do after a program command line parsing error, if an 425 error message has already been printed. */ 426 #define ARGP_HELP_STD_ERR \ 427 (ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR) 428 /* The standard thing to do after a program command line parsing error, if no 429 more specific error message has been printed. */ 430 #define ARGP_HELP_STD_USAGE \ 431 (ARGP_HELP_SHORT_USAGE | ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR) 432 /* The standard thing to do in response to a --help option. */ 433 #define ARGP_HELP_STD_HELP \ 434 (ARGP_HELP_SHORT_USAGE | ARGP_HELP_LONG | ARGP_HELP_EXIT_OK \ 435 | ARGP_HELP_DOC | ARGP_HELP_BUG_ADDR) 436 437 /* Output a usage message for ARGP to STREAM. FLAGS are from the set 438 ARGP_HELP_*. */ 439 extern void argp_help (const struct argp *__restrict __argp, 440 FILE *__restrict __stream, 441 unsigned __flags, char *__restrict __name); 442 extern void __argp_help (const struct argp *__restrict __argp, 443 FILE *__restrict __stream, unsigned __flags, 444 char *__name); 445 446 /* The following routines are intended to be called from within an argp 447 parsing routine (thus taking an argp_state structure as the first 448 argument). They may or may not print an error message and exit, depending 449 on the flags in STATE -- in any case, the caller should be prepared for 450 them *not* to exit, and should return an appropriate error after calling 451 them. [argp_usage & argp_error should probably be called argp_state_..., 452 but they're used often enough that they should be short] */ 453 454 /* Output, if appropriate, a usage message for STATE to STREAM. FLAGS are 455 from the set ARGP_HELP_*. */ 456 extern void argp_state_help (const struct argp_state *__restrict __state, 457 FILE *__restrict __stream, 458 unsigned int __flags); 459 extern void __argp_state_help (const struct argp_state *__restrict __state, 460 FILE *__restrict __stream, 461 unsigned int __flags); 462 463 /* Possibly output the standard usage message for ARGP to stderr and exit. */ 464 extern void argp_usage (const struct argp_state *__state); 465 extern void __argp_usage (const struct argp_state *__state); 466 467 /* If appropriate, print the printf string FMT and following args, preceded 468 by the program name and `:', to stderr, and followed by a `Try ... --help' 469 message, then exit (1). */ 470 extern void argp_error (const struct argp_state *__restrict __state, 471 const char *__restrict __fmt, ...) 472 __attribute__ ((__format__ (__printf__, 2, 3))); 473 extern void __argp_error (const struct argp_state *__restrict __state, 474 const char *__restrict __fmt, ...) 475 __attribute__ ((__format__ (__printf__, 2, 3))); 476 477 /* Similar to the standard gnu error-reporting function error(), but will 478 respect the ARGP_NO_EXIT and ARGP_NO_ERRS flags in STATE, and will print 479 to STATE->err_stream. This is useful for argument parsing code that is 480 shared between program startup (when exiting is desired) and runtime 481 option parsing (when typically an error code is returned instead). The 482 difference between this function and argp_error is that the latter is for 483 *parsing errors*, and the former is for other problems that occur during 484 parsing but don't reflect a (syntactic) problem with the input. */ 485 extern void argp_failure (const struct argp_state *__restrict __state, 486 int __status, int __errnum, 487 const char *__restrict __fmt, ...) 488 __attribute__ ((__format__ (__printf__, 4, 5))); 489 extern void __argp_failure (const struct argp_state *__restrict __state, 490 int __status, int __errnum, 491 const char *__restrict __fmt, ...) 492 __attribute__ ((__format__ (__printf__, 4, 5))); 493 494 /* Returns true if the option OPT is a valid short option. */ 495 extern int _option_is_short (const struct argp_option *__opt) __THROW; 496 extern int __option_is_short (const struct argp_option *__opt) __THROW; 497 498 /* Returns true if the option OPT is in fact the last (unused) entry in an 499 options array. */ 500 extern int _option_is_end (const struct argp_option *__opt) __THROW; 501 extern int __option_is_end (const struct argp_option *__opt) __THROW; 502 503 /* Return the input field for ARGP in the parser corresponding to STATE; used 504 by the help routines. */ 505 extern void *_argp_input (const struct argp *__restrict __argp, 506 const struct argp_state *__restrict __state) 507 __THROW; 508 extern void *__argp_input (const struct argp *__restrict __argp, 509 const struct argp_state *__restrict __state) 510 __THROW; 511 512 #ifdef __USE_EXTERN_INLINES 513 514 # if !(defined _LIBC && _LIBC) 515 # define __argp_usage argp_usage 516 # define __argp_state_help argp_state_help 517 # define __option_is_short _option_is_short 518 # define __option_is_end _option_is_end 519 # endif 520 521 # ifndef ARGP_EI 522 # define ARGP_EI __extern_inline 523 # endif 524 525 ARGP_EI void 526 __argp_usage (const struct argp_state *__state) 527 { 528 __argp_state_help (__state, stderr, ARGP_HELP_STD_USAGE); 529 } 530 531 ARGP_EI int 532 __NTH (__option_is_short (const struct argp_option *__opt)) 533 { 534 if (__opt->flags & OPTION_DOC) 535 return 0; 536 else 537 { 538 int __key = __opt->key; 539 return __key > 0 && __key <= UCHAR_MAX && isprint (__key); 540 } 541 } 542 543 ARGP_EI int 544 __NTH (__option_is_end (const struct argp_option *__opt)) 545 { 546 return !__opt->key && !__opt->name && !__opt->doc && !__opt->group; 547 } 548 549 # if !(defined _LIBC && _LIBC) 550 # undef __argp_usage 551 # undef __argp_state_help 552 # undef __option_is_short 553 # undef __option_is_end 554 # endif 555 #endif /* Use extern inlines. */ 556 557 #include <bits/floatn.h> 558 #if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1 559 # include <bits/argp-ldbl.h> 560 #endif 561 562 __END_DECLS 563 564 #endif /* argp.h */
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