l3tol(3)
Name
l3tol, ltol3 − convert between 3-byte integers and long integers
Syntax
void l3tol (lp, cp, n)
long ∗lp;
char ∗cp;
int n;
void ltol3 (cp, lp, n)
char ∗cp;
long ∗lp;
int n;
Description
The l3tol subroutine converts a list of n three-byte integers packed into a character string pointed to by cp into a list of long integers pointed to by lp.
The ltol3 performs the reverse conversion from long integers (lp) to three-byte integers (cp).
These functions are useful for file-system maintenance where the block numbers are three bytes long.
Restrictions
Because of possible differences in byte ordering, the numerical values of the long integers are machine-dependent.