/usr/include/hidrd/util/num.h is in libhidrd0-dev 0.2.0-11.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 | /** @file
* @brief HID report descriptor - utilities - number conversions
*
* Copyright (C) 2010 Nikolai Kondrashov
*
* This file is part of hidrd.
*
* Hidrd is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Hidrd is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with hidrd; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @author Nikolai Kondrashov <spbnick@gmail.com>
*
* @(#) $Id: num.h 384 2010-04-29 14:31:35Z spb_nick $
*/
#ifndef __HIDRD_UTIL_NUM_H__
#define __HIDRD_UTIL_NUM_H__
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/** The type behind convenience type name "u32" (used in macros) */
#define HIDRD_NUM_u32_TYPE uint32_t
/** The type behind convenience type name "s32" (used in macros) */
#define HIDRD_NUM_s32_TYPE int32_t
/** The type behind convenience type name "u16" (used in macros) */
#define HIDRD_NUM_u16_TYPE uint16_t
/** The type behind convenience type name "s16" (used in macros) */
#define HIDRD_NUM_s16_TYPE int16_t
/** The type behind convenience type name "u8" (used in macros) */
#define HIDRD_NUM_u8_TYPE uint8_t
/** The type behind convenience type name "s8" (used in macros) */
#define HIDRD_NUM_s8_TYPE int8_t
/** Number base */
typedef enum hidrd_num_base {
HIDRD_NUM_BASE_NONE = 0, /**< None, not specified */
HIDRD_NUM_BASE_DEC = 10, /**< Decimal */
HIDRD_NUM_BASE_HEX = 16 /**< Hexadecimal */
} hidrd_num_base;
/** A lowercase version of HIDRD_NUM_BASE_DEC - for macro convenience */
#define HIDRD_NUM_BASE_dec HIDRD_NUM_BASE_DEC
/** A lowercase version of HIDRD_NUM_BASE_HEX - for macro convenience */
#define HIDRD_NUM_BASE_hex HIDRD_NUM_BASE_HEX
/**
* Check if a number base is valid.
*
* @param base Base to check.
*
* @return True if the base is valid, false otherwise.
*/
extern bool hidrd_num_base_valid(hidrd_num_base base);
/** Number base mark type */
typedef enum hidrd_num_bmrk {
HIDRD_NUM_BMRK_NONE = 0, /**< No base mark, explicit base required */
HIDRD_NUM_BMRK_SFX, /**< Suffix (h, b, etc) */
HIDRD_NUM_BMRK_PFX, /**< Prefix (0x, 0, etc) */
} hidrd_num_bmrk;
/**
* Check if a number base mark type is valid.
*
* @param bmrk Base mark type to check.
*
* @return True if the base mark type is valid, false otherwise.
*/
extern bool hidrd_num_bmrk_valid(hidrd_num_bmrk bmrk);
/**
* Convert a string to an unsigned 32-bit integer.
*
* @param pnum Location for the converted number; could be NULL.
* @param str String to convert from.
* @param bmrk Number base mark type; if HIDRD_NUM_BMRK_NONE, @e base must
* be specified (not HIDRD_NUM_BASE_NONE).
* @param base Number base to convert from; only applicable if @e bmrk is
* HIDRD_NUM_BMRK_NONE.
*
* @return True if the string was valid and converted successfully, false
* otherwise.
*/
extern bool hidrd_num_u32_from_str(uint32_t *pnum,
const char *str,
hidrd_num_bmrk bmrk,
hidrd_num_base base);
/**
* Convert a string to a signed 32-bit integer.
*
* @param pnum Location for the converted number; could be NULL.
* @param str String to convert from.
* @param bmrk Number base mark type; if HIDRD_NUM_BMRK_NONE, @e base must
* be specified (not HIDRD_NUM_BASE_NONE).
* @param base Number base to convert from; only applicable if @e bmrk is
* HIDRD_NUM_BMRK_NONE.
*
* @return True if the string was valid and converted successfully, false
* otherwise.
*/
extern bool hidrd_num_s32_from_str(int32_t *pnum,
const char *str,
hidrd_num_bmrk bmrk,
hidrd_num_base base);
/**
* Convert a string to an unsigned 16-bit integer.
*
* @param pnum Location for the converted number; could be NULL.
* @param str String to convert from.
* @param bmrk Number base mark type; if HIDRD_NUM_BMRK_NONE, @e base must
* be specified (not HIDRD_NUM_BASE_NONE).
* @param base Number base to convert from; only applicable if @e bmrk is
* HIDRD_NUM_BMRK_NONE.
*
* @return True if the string was valid and converted successfully, false
* otherwise.
*/
extern bool hidrd_num_u16_from_str(uint16_t *pnum,
const char *str,
hidrd_num_bmrk bmrk,
hidrd_num_base base);
/**
* Convert a string to a signed 16-bit integer.
*
* @param pnum Location for the converted number; could be NULL.
* @param str String to convert from.
* @param bmrk Number base mark type; if HIDRD_NUM_BMRK_NONE, @e base must
* be specified (not HIDRD_NUM_BASE_NONE).
* @param base Number base to convert from; only applicable if @e bmrk is
* HIDRD_NUM_BMRK_NONE.
*
* @return True if the string was valid and converted successfully, false
* otherwise.
*/
extern bool hidrd_num_s16_from_str(int16_t *pnum,
const char *str,
hidrd_num_bmrk bmrk,
hidrd_num_base base);
/**
* Convert a string to an unsigned 8-bit integer.
*
* @param pnum Location for the converted number; could be NULL.
* @param str String to convert from.
* @param bmrk Number base mark type; if HIDRD_NUM_BMRK_NONE, @e base must
* be specified (not HIDRD_NUM_BASE_NONE).
* @param base Number base to convert from; only applicable if @e bmrk is
* HIDRD_NUM_BMRK_NONE.
*
* @return True if the string was valid and converted successfully, false
* otherwise.
*/
extern bool hidrd_num_u8_from_str(uint8_t *pnum,
const char *str,
hidrd_num_bmrk bmrk,
hidrd_num_base base);
/**
* Convert a string to a signed 8-bit integer.
*
* @param pnum Location for the converted number; could be NULL.
* @param str String to convert from.
* @param bmrk Number base mark type; if HIDRD_NUM_BMRK_NONE, @e base must
* be specified (not HIDRD_NUM_BASE_NONE).
* @param base Number base to convert from; only applicable if @e bmrk is
* HIDRD_NUM_BMRK_NONE.
*
* @return True if the string was valid and converted successfully, false
* otherwise.
*/
extern bool hidrd_num_s8_from_str(int8_t *pnum,
const char *str,
hidrd_num_bmrk bmrk,
hidrd_num_base base);
/**
* Convert an unsigned 32-bit integer to a string.
*
* @param num The number to convert.
* @param bmrk Number base mark type.
* @param base Number base to convert to, must be specified (not
* HIDRD_NUM_BASE_NONE).
*
* @return Dynamically allocated string, or NULL if failed to allocate
* memory.
*/
extern char *hidrd_num_u32_to_str(uint32_t num,
hidrd_num_bmrk bmrk,
hidrd_num_base base);
/**
* Convert a signed 32-bit integer to a string.
*
* @param num The number to convert.
* @param bmrk Number base mark type.
* @param base Number base to convert to, must be specified (not
* HIDRD_NUM_BASE_NONE).
*
* @return Dynamically allocated string, or NULL if failed to allocate
* memory.
*/
extern char *hidrd_num_s32_to_str(int32_t num,
hidrd_num_bmrk bmrk,
hidrd_num_base base);
/**
* Convert an unsigned 16-bit integer to a string.
*
* @param num The number to convert.
* @param bmrk Number base mark type.
* @param base Number base to convert to, must be specified (not
* HIDRD_NUM_BASE_NONE).
*
* @return Dynamically allocated string, or NULL if failed to allocate
* memory.
*/
static inline char *
hidrd_num_u16_to_str(uint16_t num, hidrd_num_bmrk bmrk, hidrd_num_base base)
{
return hidrd_num_u32_to_str(num, bmrk, base);
}
/**
* Convert a signed 16-bit integer to a string.
*
* @param num The number to convert.
* @param bmrk Number base mark type.
* @param base Number base to convert to, must be specified (not
* HIDRD_NUM_BASE_NONE).
*
* @return Dynamically allocated string, or NULL if failed to allocate
* memory.
*/
static inline char *
hidrd_num_s16_to_str(int16_t num, hidrd_num_bmrk bmrk, hidrd_num_base base)
{
return hidrd_num_s32_to_str(num, bmrk, base);
}
/**
* Convert an unsigned 8-bit integer to a string.
*
* @param num The number to convert.
* @param bmrk Number base mark type.
* @param base Number base to convert to, must be specified (not
* HIDRD_NUM_BASE_NONE).
*
* @return Dynamically allocated string, or NULL if failed to allocate
* memory.
*/
static inline char *
hidrd_num_u8_to_str(uint8_t num, hidrd_num_bmrk bmrk, hidrd_num_base base)
{
return hidrd_num_u32_to_str(num, bmrk, base);
}
/**
* Convert a signed 8-bit integer to a string.
*
* @param num The number to convert.
* @param bmrk Number base mark type.
* @param base Number base to convert to, must be specified (not
* HIDRD_NUM_BASE_NONE).
*
* @return Dynamically allocated string, or NULL if failed to allocate
* memory.
*/
static inline char *
hidrd_num_s8_to_str(int8_t num, hidrd_num_bmrk bmrk, hidrd_num_base base)
{
return hidrd_num_s32_to_str(num, bmrk, base);
}
/**
* Convert a specified integer number type to a string.
*
* @param _t Short integer number type name (u32/s32/u16/s16/u8/s8).
* @param _n Number.
* @param _m Short base mark type name (without HIDRD_NUM_BMRK_ prefix).
* @param _b Short base name (without HIDRD_NUM_BASE_ prefix); cannot be
* NONE.
*
* @return Dynamically allocated string, or NULL, if failed to allocate
* memory.
*/
#define HIDRD_NUM_TO_STR(_t, _n, _m, _b) \
hidrd_num_##_t##_to_str(_n, HIDRD_NUM_BMRK_##_m, HIDRD_NUM_BASE_##_b)
/**
* Convert a string to a specified integer type.
*
* @param _t Short integer number type name (u32/s32/u16/s16/u8/s8).
* @param _pn Location for resulting number.
* @param _s String to parse.
* @param _m Short base mark type name (without HIDRD_NUM_BMRK_ prefix);
* if not specified (NONE), @e _b must be specified (not NONE).
* @param _b Short base name (without HIDRD_NUM_BASE_ prefix); only
* applicable if @e _m is specified (not NONE).
*
* @return True if the string was valid and parsed successfully, false
* otherwise.
*/
#define HIDRD_NUM_FROM_STR(_t, _pn, _s, _m, _b) \
hidrd_num_##_t##_from_str(_pn, _s, \
HIDRD_NUM_BMRK_##_m, HIDRD_NUM_BASE_##_b)
/**
* Declare a function set for converting a number type to/from a string.
*
* @param _t Name of the type being converted, without hidrd_ prefix.
*/
#define HIDRD_NUM_CONV_DECLS(_t) \
extern char *hidrd_##_t##_to_dec(hidrd_##_t v); \
extern char *hidrd_##_t##_to_hex(hidrd_##_t v); \
extern char *hidrd_##_t##_to_phex(hidrd_##_t v); \
extern char *hidrd_##_t##_to_shex(hidrd_##_t v); \
extern bool hidrd_##_t##_from_dec(hidrd_##_t *pv, const char *s); \
extern bool hidrd_##_t##_from_hex(hidrd_##_t *pv, const char *s); \
extern bool hidrd_##_t##_from_pstr(hidrd_##_t *pv, const char *s); \
extern bool hidrd_##_t##_from_sstr(hidrd_##_t *pv, const char *s)
/**
* Define a function set for converting a number type to/from a string.
*
* @param _t Name of the type being converted, without hidrd_ prefix.
* @param _n Short (convenience) name of the number type (like s8).
*/
#define HIDRD_NUM_CONV_DEFS(_t, _n) \
char * \
hidrd_##_t##_to_dec(hidrd_##_t v) \
{ \
assert(hidrd_##_t##_valid(v)); \
return HIDRD_NUM_TO_STR(_n, v, NONE, DEC); \
} \
\
\
char * \
hidrd_##_t##_to_hex(hidrd_##_t v) \
{ \
assert(hidrd_##_t##_valid(v)); \
return HIDRD_NUM_TO_STR(_n, v, NONE, HEX); \
} \
\
\
char * \
hidrd_##_t##_to_phex(hidrd_##_t v) \
{ \
assert(hidrd_##_t##_valid(v)); \
return HIDRD_NUM_TO_STR(_n, v, PFX, HEX); \
} \
\
\
char * \
hidrd_##_t##_to_shex(hidrd_##_t v) \
{ \
assert(hidrd_##_t##_valid(v)); \
return HIDRD_NUM_TO_STR(_n, v, SFX, HEX); \
} \
\
\
bool \
hidrd_##_t##_from_dec(hidrd_##_t *pv, const char *s) \
{ \
HIDRD_NUM_##_n##_TYPE v; \
\
assert(s != NULL); \
\
if (!HIDRD_NUM_FROM_STR(_n, &v, s, NONE, DEC) || \
!hidrd_##_t##_valid(v)) \
return false; \
\
if (pv != NULL) \
*pv = v; \
\
return true; \
} \
\
\
bool \
hidrd_##_t##_from_hex(hidrd_##_t *pv, const char *s) \
{ \
HIDRD_NUM_##_n##_TYPE v; \
\
assert(s != NULL); \
\
if (!HIDRD_NUM_FROM_STR(_n, &v, s, NONE, HEX) || \
!hidrd_##_t##_valid(v)) \
return false; \
\
if (pv != NULL) \
*pv = v; \
\
return true; \
} \
\
\
bool \
hidrd_##_t##_from_pstr(hidrd_##_t *pv, const char *s) \
{ \
HIDRD_NUM_##_n##_TYPE v; \
\
assert(s != NULL); \
\
if (!HIDRD_NUM_FROM_STR(_n, &v, s, PFX, NONE) || \
!hidrd_##_t##_valid(v)) \
return false; \
\
if (pv != NULL) \
*pv = v; \
\
return true; \
} \
\
\
bool \
hidrd_##_t##_from_sstr(hidrd_##_t *pv, const char *s) \
{ \
HIDRD_NUM_##_n##_TYPE v; \
\
assert(s != NULL); \
\
if (!HIDRD_NUM_FROM_STR(_n, &v, s, SFX, NONE) || \
!hidrd_##_t##_valid(v)) \
return false; \
\
if (pv != NULL) \
*pv = v; \
\
return true; \
}
/**
* Prototype for a function used to parse a number string.
*
* This prototype is not meant to be used to define functions, but to
* describe hidrd_num_from_alt_str function parameters.
*
* @param pnum Location for the output number.
* @param str The string to parse.
*
* @return True if the string was valid and parsed successfully.
*/
typedef bool hidrd_num_parse_fn(void *pnum, const char *str);
/**
* Convert a number from alternate string formats.
*
* @param pnum Location for the output number; could be NULL.
* @param str The string to parse.
* @param ... List of @e hidrd_num_parse_fn functions to try to parse the
* string with; terminated with NULL.
*
* @return True if at least one function succeeded parsing the string.
*/
extern bool hidrd_num_from_alt_str(void *pnum, const char *str, ...);
/**
* Convert a number from a string representations.
*
* @param _type Number type name token (used to generate parsing
* function names).
* @param _pnum Location for the output number; could be NULL.
* @param _str The string to parse.
* @param _rerp Representation name token (used to generate parsing
* function name).
*
* @return True if the function succeeded parsing the string.
*/
#define HIDRD_NUM_FROM_ALT_STR1(_type, _pnum, _str, _repr) \
hidrd_num_from_alt_str(_pnum, _str, \
hidrd_##_type##_from_##_repr, \
NULL)
/**
* Convert a number from two alternate string representations.
*
* @param _type Number type name token (used to generate parsing
* function names).
* @param _pnum Location for the output number; could be NULL.
* @param _str The string to parse.
* @param _rerp1 First representation name token (used to generate
* first parsing function name).
* @param _rerp2 Second representation name token (used to generate
* second parsing function name).
*
* @return True if at least one function succeeded parsing the string.
*/
#define HIDRD_NUM_FROM_ALT_STR2(_type, _pnum, _str, \
_repr1, _repr2) \
hidrd_num_from_alt_str(_pnum, _str, \
hidrd_##_type##_from_##_repr1, \
hidrd_##_type##_from_##_repr2, \
NULL)
/**
* Convert a number from three alternate string representations.
*
* @param _type Number type name token (used to generate parsing
* function names).
* @param _pnum Location for the output number; could be NULL.
* @param _str The string to parse.
* @param _rerp1 First representation name token (used to generate
* first parsing function name).
* @param _rerp2 Second representation name token (used to generate
* second parsing function name).
* @param _rerp3 Third representation name token (used to generate
* third parsing function name).
*
* @return True if at least one function succeeded parsing the string.
*/
#define HIDRD_NUM_FROM_ALT_STR3(_type, _pnum, _str, \
_repr1, _repr2, _repr3) \
hidrd_num_from_alt_str(_pnum, _str, \
hidrd_##_type##_from_##_repr1, \
hidrd_##_type##_from_##_repr2, \
hidrd_##_type##_from_##_repr3, \
NULL)
/**
* Convert a number from four alternate string representations.
*
* @param _type Number type name token (used to generate parsing
* function names).
* @param _pnum Location for the output number; could be NULL.
* @param _str The string to parse.
* @param _rerp1 First representation name token (used to generate
* first parsing function name).
* @param _rerp2 Second representation name token (used to generate
* second parsing function name).
* @param _rerp3 Third representation name token (used to generate
* third parsing function name).
* @param _rerp4 Fourth representation name token (used to generate
* fourth parsing function name).
*
* @return True if at least one function succeeded parsing the string.
*/
#define HIDRD_NUM_FROM_ALT_STR4(_type, _pnum, _str, \
_repr1, _repr2, \
_repr3, _repr4) \
hidrd_num_from_alt_str(_pnum, _str, \
hidrd_##_type##_from_##_repr1, \
hidrd_##_type##_from_##_repr2, \
hidrd_##_type##_from_##_repr3, \
hidrd_##_type##_from_##_repr4, \
NULL)
/**
* Prototype for a function used to format an 8-bit number string (either
* signed or unsigned).
*
* This prototype is not meant to be used to define functions, but to
* describe hidrd_num_to_alt_str function parameters.
*
* @param num The number to convert.
*
* @return Dynamically allocated string, or NULL if the match is not found
* or an error occurred; check errno for the latter.
*/
typedef char *hidrd_num_fmt8_fn(int8_t num);
typedef char *hidrd_num_fmtu8_fn(uint8_t num);
/**
* Prototype for a function used to format an 16-bit number string (either
* signed or unsigned).
*
* This prototype is not meant to be used to define functions, but to
* describe hidrd_num_to_alt_str function parameters.
*
* @param num The number to convert.
*
* @return Dynamically allocated string, or NULL if the match is not found
* or an error occurred; check errno for the latter.
*/
typedef char *hidrd_num_fmt16_fn(int16_t num);
typedef char *hidrd_num_fmtu16_fn(uint16_t num);
/**
* Prototype for a function used to format an 32-bit number string (either
* signed or unsigned).
*
* This prototype is not meant to be used to define functions, but to
* describe hidrd_num_to_alt_str function parameters.
*
* @param num The number to convert.
*
* @return Dynamically allocated string, or NULL if the match is not found
* or an error occurred; check errno for the latter.
*/
typedef char *hidrd_num_fmt32_fn(int32_t num);
typedef char *hidrd_num_fmtu32_fn(uint32_t num);
/**
* Convert a number to a string of alternate formats.
*
* @param bits Size of the number in bits; only 8, 16 and 32 accepted.
* @param ... A succession of arguments:
* - the number to convert;
* - conversion function chains (hidrd_num_fmtX_fn,
* hidrd_str_proc_fn..., NULL), terminated by an empty chain
* (NULL).
*
* @return Dynamically allocated string, or NULL if failed to find a match,
* or an error occurred; check errno for the latter.
*
* @note Always resets errno.
*/
char *hidrd_num_to_alt_str(size_t bits, int sign, ...);
/**
* Convert a number to a string of two alternate formats, without additional
* conversion.
*
* @param _t The number type name token.
* @param _s True iff the type name token is a signed type.
* @param _n The number to convert.
* @param _r1 First converter representation token.
* @param _r2 Second converter representation token.
*
* @return Dynamically allocated string, or NULL if failed to find a match
* or an error occurred; check errno for the latter.
*/
#define HIDRD_NUM_TO_ALT_STR1_1(_t, _s, _n, _r1, _r2) \
hidrd_num_to_alt_str(sizeof(hidrd_##_t) * 8, _s, _n,\
hidrd_##_t##_to_##_r1, NULL, \
hidrd_##_t##_to_##_r2, NULL, \
NULL)
/**
* Convert a number to a string of two alternate formats, with first format
* string having additional processing.
*
* @param _t The number type name token.
* @param _s True iff the type name token is a signed type.
* @param _n The number to convert.
* @param _r1 First converter representation token (hex, token, etc.).
* @param _p1 First converter processing function name (uc, lc, etc.).
* @param _r2 Second converter representation token (hex, token, etc.).
*
* @return Dynamically allocated string, or NULL if failed to find a match
* or an error occurred; check errno for the latter.
*/
#define HIDRD_NUM_TO_ALT_STR2_1(_t, _s, _n, _r1, _p1, _r2) \
hidrd_num_to_alt_str(sizeof(hidrd_##_t) * 8, _s, _n, \
hidrd_##_t##_to_##_r1, hidrd_str_##_p1, NULL, \
hidrd_##_t##_to_##_r2, NULL, \
NULL)
/**
* Convert a 32-bit unsigned number to little-endian order.
*
* @param ple Location for the output number in little-endian order.
* @param num Input number in host order.
*/
extern void hidrd_num_u32_to_le(uint32_t *ple, uint32_t num);
/**
* Convert a 32-bit unsigned number from little-endian order.
*
* @param ple Location of the input number in little-endian order.
*
* @return Output number in host order.
*/
extern uint32_t hidrd_num_u32_from_le(const uint32_t *ple);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __HIDRD_UTIL_NUM_H__ */
|