Code snippet for Base34 Encoding

[TempoMat]

Originally Posted by Kurapica

https://gist.github.com/JohannesMP/a911b7dc02bb0586e3111a0cbd2dc0e2

Credits to the original coder.

Thnaks for the link
Howover I have tried that and many others already and this particular one does not work for me, because that code snippet is for bases 2...36.

I forgot to state in my first post that the search is for conversion from ByteArray to Base34.

So to use this code snippet one has to first convert the byteArray (==BigNumber) to Binary or Base10 and then to Base34.

Alternative suggestion is to use BigInteger Library for the division, which I thought I could avoid.

[runio]

https://en.wikipedia.org/wiki/Base36

Base34 is (0-9), (A-X)

Example code converted from Base36

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

static char *base34enc(long unsigned int value)
 {
	char base34[34] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWX";
	char buffer[14];
	unsigned int offset = sizeof(buffer);

	buffer[--offset] = '\0';
	do {
		buffer[--offset] = base34[value % 34];
	} while (value /= 34);

	  return strdup(&buffer[offset]); 
  }

static long unsigned int base34dec(const char *text)
{
    return strtoul(text, NULL, 34);
}

int main()
{
    printf("The number(unsigned long integer) is %lu\n", base34dec("ABCDEF"));
    return 0;
}

[TempoMat]

@runio

If I am not mistaken the unsigned long integer type should be in the range [0, +18,446,744,073,709,551,615].
Therefore the code snippet will not work for a number like B9DDE784B6FFC653DFEC3E94D6B610 (965075674130144583043497186064512528) or larger.

Regards