bstring(3) 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(3C) do.
bcopy copies length bytes from string b1 to the string b2.
bcmp compares byte string b1 against byte string b2,
returning 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 finds 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 -1 indicates the value passed is
zero.
BUGS
The bcmp and bcopy routines take parameters backwards from
strcmp and strcpy.
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