

#include <strings.h>
void bcopy(const void * src , void * dest , size_t n );
The bcopy () function copies n bytes from src to dest . The result is correct, even when both areas overlap.
4.3BSD. This function is deprecated (marked as LEGACY in POSIX.1-2001): use memcpy (3) or memmove (3) in new programs. Note that the first two parameters are interchanged for memcpy (3) and memmove (3).
memccpy (3) memcpy (3) memmove (3) strcpy (3) strncpy (3)