#ifndef APFL_INTRINSICS_H
#define APFL_INTRINSICS_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>

#if defined(__GNUC__) && !defined(APFL_NO_INTRINSICS)
#define APFL_USE_INTRINSICS
#endif

#ifdef APFL_USE_INTRINSICS
# define MULTIPLY_CHECK_OVERFLOW_SIZE(res, a, b) __builtin_mul_overflow((a), (b), &(res))
#else
# define MULTIPLY_CHECK_OVERFLOW_SIZE(res, a, b) \
    (                                       \
        (b) != 0 && (a) > SIZE_MAX / (b)    \
            ? true                          \
            : ((res = (a) * (b)), false)    \
    )
#endif

#ifdef __cplusplus
}
#endif

#endif