bstring(3) Library Functions Manual bstring(3)
Name
bcopy, bcmp, bzero, ffs - bit and byte string operations
Syntax
void bcopy(b1, b2, length)
char *b1, *b2;
int length;
bcmp(b1, b2, length)
char *b1, *b2;
int length;
void bzero(b1, length)
char *b1;
int length;
ffs(i)
int i;
Description
The functions and operate on variable length strings of bytes. They do not check for null bytes as the routines in do.
The function copies length bytes from string b1 to the string b2.
The function 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.
The function places length 0 bytes in the string b1.
The 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 0 indicates the value passed is zero.
Restrictions
The and routines take parameters backwards from and
See Also
bstring(3)
