Creating Column numbering like in Excecl i.e. A...Z then AA ... ZZ and so forth

[momesana]

Hi,
I wanted to have a numbering scheme for columns like the one provided by Office calculation programs.

My approach so far is this:

#include <QList>
#include <QStringList>
#include <QDebug>
 
QString getLabelFromInt(uint digit)
{
    uint base = 26;
 
    uint remainder;
    uint quotient = digit;
 
    QList<int> l;
    do {
        remainder = quotient % base;
        quotient = quotient / base;
        l.prepend(remainder);
    } while (quotient != 0);
 
    QStringList strList;
    for (int i = 0; i < l.size(); ++i)
        strList << QString(char(l[i] + 'a'));
 
    return strList.join("");
}
 
int main(int argc, char** arg) {
    for (int i = 0; i < 200; ++i)
        qDebug() << getLabelFromInt(i);
}

#include <QList>
#include <QStringList>
#include <QDebug>

QString getLabelFromInt(uint digit)
{
    uint base = 26;

    uint remainder;
    uint quotient = digit;

    QList<int> l;
    do {
        remainder = quotient % base;
        quotient = quotient / base;
        l.prepend(remainder);
    } while (quotient != 0);

    QStringList strList;
    for (int i = 0; i < l.size(); ++i)
        strList << QString(char(l[i] + 'a'));

    return strList.join("");
}

int main(int argc, char** arg) {
    for (int i = 0; i < 200; ++i)
        qDebug() << getLabelFromInt(i);
}

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but it generates a-z but then continues with ba - zz and then baa - zzz. Considering an alphabet with two symbols (0 and 1) it would have to go like this:

0
1
00
01
10
11
000
001
010
011
100
101
110
111

instead of
0
1
10
11
100
101
110
111

Of course I see the pattern: the first one has 2^3+2^2+2^1 elements (since it includes the preceding combinations) while the second (normal) one has 2^3 elements but I can't put the pieces together.
Is there a simple way to implement this?

Thanx in advance
momesana