NAME

     bstring, bcopy, bcmp, bzero,  ffs  -  bit  and  byte  string
     operations


SYNOPSIS

     #include <sys/types.h>
     #include <string.h>
     #include <unistd.h>

     void bcopy(const void *src, void *dst, size_t length)
     int bcmp(const void *b1, const void *b2, size_t length)
     void bzero(void *dst, size_t length)
     int ffs(int i)


DESCRIPTION

     The functions bcopy, bcmp, and  bzero  operate  on  variable
     length  strings  of bytes.  They do not check for null bytes
     as the routines in string(3) do.

     Bcopy copies length bytes from string src to the string dst.

     Bcmp compares byte string b1 against byte string b2, return-
     ing  zero  if  they are identical, non-zero otherwise.  Both
     strings are assumed to be length bytes long.

     Bzero places length 0 bytes in the string b1.

     Ffs find the first bit set in the  argument  passed  it  and
     returns  the  index of that bit.  Bits are numbered starting
     at 1.  A return value of 0 indicates  the  value  passed  is
     zero.


BUGS

     The bcopy, bcmp, and bzero functions are obsolete; new  code
     should use memmove, memcmp, and memset respectively.

     The bcopy routine takes parameters  backwards  from  memcpy,
     memmove, and strcpy.