Base 69

Base 69 becuse cool kids only count in funny internet numbers

Functions:

All base 69s will start with 69*|

encode_base69 Will return a string in base 69
decode_base69 Will return a int

Support

If this made you laugh and you want to get me a cup of tea: https://www.buymeacoffee.com/Michaelrbparker

Example

#include <stdio.h>
#include "base69.h"

int main() {
    int input = 100;
    char output[24]; // Allocate enough space for the output including the prefix

    encode_base69(input, output);

    printf("Encoded: %s\n", output);

    int decoded = decode_base69(output);
    printf("Decoded: %d\n", decoded);

    return 0;
}

gcc test.c base69.c -o base69_test

Conversion Table:

0:'0',1:'1',2:'2',3:'3',4:'4',5:'5',6:'6',7:'7',8:'8',9:'9',10:'A',11:'B',12:'C',13:'D',14:'E',15:'F',16:'G',17:'H',18:'I',19:'J',20:'K',21:'L',22:'M',23:'N',24:'O',25:'P',26:'Q',27:'R',28:'S',29:'T',30:'U',31:'V',32:'W',33:'X',34:'Y',35:'Z',36:'a',37:'b',38:'c',39:'d',40:'e',41:'f',42:'g',43:'h',44:'i',45:'j',46:'k',47:'l',48:'m',49:'n',50:'o',51:'p',52:'q',53:'r',54:'s',55:'t',56:'u',57:'v',58:'w',59:'x',60:'y',61:'z',62:'+',63:'/',64:'=',65:'@',66:'*',67:'-',68:'!',69:'#'

Number	Value
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	A
11	B
12	C
13	D
14	E
15	F
16	G
17	H
18	I
19	J
20	K
21	L
22	M
23	N
24	O
25	P
26	Q
27	R
28	S
29	T
30	U
31	V
32	W
33	X
34	Y
35	Z
36	a
37	b
38	c
39	d
40	e
41	f
42	g
43	h
44	i
45	j
46	k
47	l
48	m
49	n
50	o
51	p
52	q
53	r
54	s
55	t
56	u
57	v
58	w
59	x
60	y
61	z
62	+
63	/
64	=
65	@
66	*
67	-
68	!
69	#