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#ifndef __STDLIB_H
#define __STDLIB_H
#define RAND_MAX 32767
/* return a pseudo-random integer in the range [0, RAND_MAX] */
unsigned int rand(void);
/* set the seed for rand () */
void srand(unsigned int seed);
/* fill a buffer with pseudo-random data */
void get_random_bytes(char *buf, int len);
#endif /* __STDLIB_H */
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