memset与bzero

#include

void *memset(void *s, int c, size_t n);

DESCRIPTION
       The memset() function fills the first n bytes of the memory area pointed to by s with the constant byte c.

RETURN VALUE
       The memset() function returns a pointer to the memory area s.


#include

void bzero(void *s, size_t n);

DESCRIPTION
       The bzero() function sets the first n bytes of the byte area starting at s to zero (bytes containing '\0').

RETURN VALUE
       None.


实例:

struct flock lock;
//用bzero清空
bzero(&lock,sizeof(struct flock));
//用memset清空
memset(&lock,0,sizeof(struct flock));