src/common/arrutil.h


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#pragma once

#include <assert.h>

#ifdef __has_builtin
    #if !__cplusplus && FF_SUPPORTS_COUNT_OF
        #define ARRAY_SIZE(x) _Countof(x)
    #elif __has_builtin(__is_array)
        #define ARRAY_SIZE(x) ({ static_assert(__is_array(__typeof__(x)), "Must be an array"); (uint32_t) (sizeof(x) / sizeof(*(x))); })
    #elif __has_builtin(__builtin_types_compatible_p)
        #define ARRAY_SIZE(x) ({ static_assert(!__builtin_types_compatible_p(__typeof__(x), __typeof__(&*(x))), "Must not be a pointer"); (uint32_t) (sizeof(x) / sizeof(*(x))); })
    #endif
#endif
#ifndef ARRAY_SIZE
    #define ARRAY_SIZE(x) ((uint32_t) (sizeof(x) / sizeof(*(x))))
#endif