[OT] What is more readable?

[simendsjo]

Continuing "my what is more readable" thread (just shut me up, but I 
don't always agree with i, j, k etc...):

std.string.count:
size_t count(string s, string sub)
{
    size_t i;
    int j;
    int count = 0;

    for (i = 0; i < s.length; i += j + sub.length)
    {
        j = indexOf(s[i .. s.length], sub);
        if (j == -1)
            break;
        count++;
    }
    return count;
}




size_t count(string s, string sub)
{
    int result = 0;

    int subStart = 0;
    for (size_t restStart = 0; restStart < s.length; restStart += 
subStart + sub.length)
    {
        auto rest = s[restStart .. $];
        subStart = indexOf(rest, sub);

        bool notFound = (subStart == -1);
        if (notFound)
            break;

        result++;
    }

    return result;
}