BSTRING(3)             C LIBRARY FUNCTIONS             BSTRING(3)



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

SYNOPSIS
     void
     bcopy(b1, b2, length)
     char *b1, *b2;
     int length;

     int bcmp(b1, b2, length)
     char *b1, *b2;
     int length;

     void
     bzero(b, length)
     char *b;
     int length;

     int ffs(i)
     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 _l_e_n_g_t_h bytes from string _b_1 to the string _b_2.
     Overlapping strings are handled correctly.

     bcmp() compares byte  string  _b_1  against  byte  string  _b_2,
     returning  zero  if  they are identical, non-zero otherwise.
     Both strings are assumed to be _l_e_n_g_t_h bytes long.  bcmp() of
     length zero bytes always returns zero.

     bzero() places _l_e_n_g_t_h 0 bytes in the string _b.

     ffs() finds the first bit set in the argument passed it  and
     returns  the  index of that bit.  Bits are numbered starting
     at 1 from the right.  A return value of zero indicates  that
     the value passed is zero.

NOTES
     The bcmp() and bcopy() routines  take  parameters  backwards
     from strcmp() and strcpy().

SEE ALSO
     string(3)







Sun Release 4.1   Last change: 23 November 1987                 1