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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2011-2013 ProFUSION embedded systems
*/
#pragma once
#include <stddef.h>
#if defined(HAVE_STATIC_ASSERT)
#define assert_cc(expr) _Static_assert((expr), #expr)
#else
#define assert_cc(expr) \
do { \
(void)sizeof(char[1 - 2 * !(expr)]); \
} while (0)
#endif
#define check_types_match(expr1, expr2) ((typeof(expr1) *)0 != (typeof(expr2) *)0)
#define container_of(member_ptr, containing_type, member) \
((containing_type *)((char *)(member_ptr) - offsetof(containing_type, member)) - \
check_types_match(*(member_ptr), ((containing_type *)0)->member))
/* Two gcc extensions.
* &a[0] degrades to a pointer: a different type from an array */
#define _array_size_chk(arr) \
({ \
assert_cc(!__builtin_types_compatible_p(typeof(arr), typeof(&(arr)[0]))); \
0; \
})
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + _array_size_chk(arr))
#define XSTRINGIFY(x) #x
#define STRINGIFY(x) XSTRINGIFY(x)
#define XCONCATENATE(x, y) x##y
#define CONCATENATE(x, y) XCONCATENATE(x, y)
#define UNIQ(x) CONCATENATE(x, __COUNTER__)
#define UNIQ_T(x, uniq) CONCATENATE(__unique_prefix_, CONCATENATE(x, uniq))
/* Attributes */
#define _must_check_ __attribute__((warn_unused_result))
#define _printf_format_(a, b) __attribute__((format(printf, a, b)))
#define _always_inline_ __inline__ __attribute__((always_inline))
#define _sentinel_ __attribute__((sentinel))
#define _used_ __attribute((used))
#define _retain_ __attribute((retain))
#define _section_(a) __attribute((section(a)))
#define _aligned_(a) __attribute((aligned(a)))
#define _alignedptr_ _aligned_(sizeof(void *))
#if defined(__clang_analyzer__)
#define _clang_suppress_ __attribute__((suppress))
#define _clang_suppress_alloc_ __attribute__((suppress))
#else
#define _clang_suppress_
#define _clang_suppress_alloc_
#endif
#define _nonnull_(...) __attribute__((nonnull(__VA_ARGS__)))
#define _nonnull_all_ __attribute__((nonnull))
#define _cleanup_(x) _clang_suppress_alloc_ __attribute__((cleanup(x)))
static inline void freep(void *p)
{
free(*(void **)p);
}
#define _cleanup_free_ _cleanup_(freep)
/* Define C11 noreturn without <stdnoreturn.h> and even on older gcc
* compiler versions */
#ifndef noreturn
#if defined(HAVE_NORETURN)
#define noreturn _Noreturn
#else
#define noreturn __attribute__((noreturn))
#endif
#endif
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