a64l(3)
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a64l, l64a Subroutine
convert between long integer and base-64 ASCII string
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SYNTAX
long a64l (s)
char *s;
char *l64a (l)
long l;
DESCRIPTION
These functions maintain numbers stored as 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
0-9 for 2-11
A-Z for 12-37
a-z for 38-63
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 will use 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.
CAVEATS
The value returned by l64a is a pointer into a static buffer, the
contents of which are overwritten by each call.
DG/UX 4.00 Page 1
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