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types.h

#ifndef _TYPES_H_
#define _TYPES_H_

#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

typedef unsigned char         u8;
typedef unsigned short        u16;
typedef unsigned int          u32;
typedef unsigned long long    u64;
typedef signed char           s8;
typedef short                 s16;
typedef int             s32;
typedef long long       s64;

#define min(x,y) ({ \
      typeof(x) _x = (x);     \
      typeof(y) _y = (y);     \
      (void) (&_x == &_y);    \
      _x < _y ? _x : _y; })

#define max(x,y) ({ \
      typeof(x) _x = (x);     \
      typeof(y) _y = (y);     \
      (void) (&_x == &_y);    \
      _x > _y ? _x : _y; })

#endif /* _TYPES_H_ */

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