NAME

a64l, l64a − convert between long integer and base-64 ASCII string

SYNOPSIS

long a64l(s)
char ∗s;

char ∗l64a(l)
long l;

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. 

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. 

BUGS

The value returned by l64a() is a pointer into a static buffer, the contents of which are overwritten by each call. 

Solbourne Computer, Inc.  —  6 October 1987