bcopy(3) — bsd — UMIPS RISC/os 5.01



BSTRING(3-BSD)      RISC/os Reference Manual       BSTRING(3-BSD)



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

SYNOPSIS
     For -systype svr3 and -systype bsd43:

     bcopy(src, dst, length)
     char *src, *dst;
     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.

     -lbsd must be linked in for any of these routines to work
     with -systype svr3.

     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.  bcmp of length
     zero bytes always returns zero.

     bzero places length 0 bytes in the string b1.

     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 0 indicates the
     value passed is zero.

BUGS
     The bcopy routine take parameters backwards from strcpy (see
     string(3C)).

ORIGIN
     BSD4.3

NOTE
     When these routines are used in a program which is compiled



                        Printed 11/19/92                   Page 1



BSTRING(3-BSD)      RISC/os Reference Manual       BSTRING(3-BSD)



     in -systype svr3, they are not resolved by libc.a.  See
     intro(3) for more information.





















































 Page 2                 Printed 11/19/92

Museum