I’ve been having this error with the function stoi. Also, getTokenAt returns a string, so this should be a problem.

{
    int idCli;
    int millas;
};

Cliente clienteFromString(string s)
{
    char sep = 1;
    Cliente x;
    string t0 = getTokenAt(s,sep,0);
    x.idCli=stoi(t0);
    string t1 = getTokenAt(s,sep,1);
    x.millas=stoi(t1);
    return x;
}

If I use any other function that converts strings to integer it works, but not this one and I just wanted to know why.