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BSTRING(3)                           SysV                           BSTRING(3)



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

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

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

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

     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 length bytes from string b1 to string b2.

     bcmp compares byte string b1 against byte string b2, returning zero if
     they are identical, nonzero otherwise.  Both strings are assumed to be
     length bytes long.

     bzero places length 0 bytes in the string b1.

     ffs returns the index of the first bit set in its argument.  A zero
     return indicates a zero argument.  Bits are numbered starting at 1.

NOTES
     The bcmp and bcopy routines take parameters in reverse order from strcmp
     and strcpy.  For example,

          bcopy (foo, bar, 3)

     copies foo to bar, while

          strcpy (foo, bar)

     copies bar to foo.