- // Copyright 2022 Stefan Kerkmann (KarlK90)
- // Copyright 2011 Jun Wako <wakojun@gmail.com>
- // SPDX-License-Identifier: GPL-2.0-or-later
-
- #pragma once
-
- #include "bitwise.h"
-
- // convert to string
- #define STR(s) XSTR(s)
- #define XSTR(s) #s
-
- #if !defined(MIN)
- # define MIN(x, y) (((x) < (y)) ? (x) : (y))
- #endif
-
- #if !defined(MAX)
- # define MAX(x, y) (((x) > (y)) ? (x) : (y))
- #endif
-
- #if !defined(CEILING)
- /**
- * @brief Computes the rounded up result of a division of two integers at
- * compile time.
- */
- # define CEILING(dividend, divisor) (((dividend) + (divisor)-1) / (divisor))
- #endif
-
- #if !defined(IS_ARRAY)
- /**
- * @brief Returns true if the value is an array, false if it's a pointer.
- *
- * This macro is ill-formed for scalars, which is OK for its intended use in
- * ARRAY_SIZE.
- */
- # define IS_ARRAY(value) (!__builtin_types_compatible_p(typeof((value)), typeof(&(value)[0])))
- #endif
-
- #if !defined(ARRAY_SIZE)
- /**
- * @brief Computes the number of elements of the given array at compile time.
- *
- * This Macro can only be used for statically allocated arrays that have not
- * been decayed into a pointer. This is detected at compile time, though the
- * error message for scalar values is poor.
- */
- # define ARRAY_SIZE(array) (__builtin_choose_expr(IS_ARRAY((array)), sizeof((array)) / sizeof((array)[0]), (void)0))
- #endif
-
- #if !defined(PACKED)
- # define PACKED __attribute__((__packed__))
- #endif
-
- #if __has_include("_util.h")
- # include "_util.h" /* Include the platform's _util.h */
- #endif
|