I'm sure there's got to be a more elegant way, but this works just fine.

#include <iostream>
using namespace std;

void main()
{
        for(char a='A'; a<='Z';a++)
                for(char b='A'; b<='Z';b++)
                        for(char c='A'; c<='Z';c++)
                                for(char d='A'; d<='Z';d++)
                                        cout << a << b << c << d << endl;
}

Ian Kayne
Technical Specialist - IT Solutions
Softlab Ltd - A BMW Company

> -----Original Message-----
> From: KF [mailto:dotslashsnosoft.com]
> Sent: 07 April 2002 02:02
> To: vuln-devsecurity-focus.com
> Subject: combinations of 4
>
>
> I am in the process of archiving power pc instructions that do not
> contain null... I have come to the decision that if I could
> generate a
> list of all possible unique 4 char combinations for a given list of
> alpha numeric chars then I could quickly sort the rest out in gdb...
>
> My question is does anyone know how to programatically do this? Do i
> need to make use of bit shifting or something? I need only a
> program to
> print the list to the screen or something simple. Example
> output would
> be ...
>
> AAAA
> BBBBB
> ....
> AAAB
> AAAC
> ...
> and so on but ONLY unique posibilities.
>
> -KF
>
>

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