Flashnux

GNU/Linux man pages

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Unix	Unix v7
	l3tol(3)

L3TOL

l3tol, ltol3 − convert between 3-byte integers and long integers

l3tol(lp, cp, n)
long *lp;
char *cp;

ltol3(cp, lp, n)
char *cp;
long *lp;

L3tol 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.

Ltol3 performs the reverse conversion from long integers (lp) to three-byte integers (cp).

These functions are useful for file-system maintenance; disk addresses are three bytes long.