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qmk_firmware

custom branch of QMK firmware git clone https://anongit.hacktivis.me/git/qmk_firmware.git

util.h (1530B)

    

  1. // Copyright 2022 Stefan Kerkmann (KarlK90)
  2. // Copyright 2011 Jun Wako <wakojun@gmail.com>
  3. // SPDX-License-Identifier: GPL-2.0-or-later
  5. #pragma once
  7. #include "bits.h"
  8. #include "bitwise.h"
  10. // convert to string
  11. #define STR(s) XSTR(s)
  12. #define XSTR(s) #s
  14. #if !defined(MIN)
  15. #    define MIN(x, y) (((x) < (y)) ? (x) : (y))
  16. #endif
  18. #if !defined(MAX)
  19. #    define MAX(x, y) (((x) > (y)) ? (x) : (y))
  20. #endif
  22. #if !defined(CEILING)
  23. /**
  24.  * @brief Computes the rounded up result of a division of two integers at
  25.  * compile time.
  26.  */
  27. #    define CEILING(dividend, divisor) (((dividend) + (divisor)-1) / (divisor))
  28. #endif
  30. #if !defined(IS_ARRAY)
  31. /**
  32.  * @brief Returns true if the value is an array, false if it's a pointer.
  33.  *
  34.  * This macro is ill-formed for scalars, which is OK for its intended use in
  35.  * ARRAY_SIZE.
  36.  */
  37. #    define IS_ARRAY(value) (!__builtin_types_compatible_p(typeof((value)), typeof(&(value)[0])))
  38. #endif
  40. #if !defined(ARRAY_SIZE)
  41. /**
  42.  * @brief Computes the number of elements of the given array at compile time.
  43.  *
  44.  * This Macro can only be used for statically allocated arrays that have not
  45.  * been decayed into a pointer. This is detected at compile time, though the
  46.  * error message for scalar values is poor.
  47.  */
  48. #    define ARRAY_SIZE(array) (__builtin_choose_expr(IS_ARRAY((array)), sizeof((array)) / sizeof((array)[0]), (void)0))
  49. #endif
  51. #if !defined(PACKED)
  52. #    define PACKED __attribute__((__packed__))
  53. #endif
  55. #if __has_include("_util.h")
  56. #    include "_util.h" /* Include the platform's _util.h */
  57. #endif