a64l.3c (2010 09)

a
a64l(3C) a64l(3C)
NAME
a64l( ), l64a( ) - convert between long integer and base-64 ASCII string
SYNOPSIS
#include <stdlib.h>
long int a64l(const char *s);
char *l64a(long int l);
Obsolescent Interface
int l64a_r(long int l, char *buffer, int buflen);
DESCRIPTION
These functions are used to maintain numbers stored in base-64 ASCII characters. This is a notation by
which long integers can be represented by up to six characters; each character represents a "digit" in a
radix-64 notation.
The characters used to represent "digits" are
. for 0, / for 1, 0 through 9 for 2-11,
A through Z for
12-37, and
a through z for 38-63.
The leftmost character is the least significant digit. For example,
a0 = (38 x 64
0
) + (2 x 64
1
) = 166
a64l() takes a pointer to a null-terminated base-64 representation and returns a corresponding
long
value. If the string pointed to by s contains more than six characters, a64l() uses the first six.
l64a() takes a long argument and returns a pointer to the corresponding base-64 representation. If
the argument is 0, l64a() returns a pointer to a null string.
Obsolescent Interface
l64a_r() converts between long integer and base-64 ASCII string.
WARNINGS
The value returned by
l64a() is a pointer into a buffer, the contents of which are overwritten subse-
quent calls by the same thread.
l64a_r() is an obsolescent interface supported only for compatibility with existing DCE applications.
New multithreaded applications should use
l64a().
SEE ALSO
thread_safety(5).
STANDARDS CONFORMANCE
a64l(): SVID2, SVID3
l64a(): SVID2, SVID3
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1