NAME
l3tol(), ltol3() — convert between 3-byte integers and long integers
SYNOPSIS
#include <stdlib.h>
void l3tol(long int *lp, const char *cp, int n);
void ltol3(char *cp, const long int *lp, int n);
DESCRIPTION
- l3tol()
Convert 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()
Perform 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.
APPLICATION USAGE
l3tol()
and
ltol3()
are thread-safe and async-cancel-safe.
WARNINGS
Because of possible differences in byte ordering,
the numerical values of the long integers are machine-dependent.
STANDARDS CONFORMANCE
l3tol(): XPG2
ltol3(): XPG2
