multidimensional vector string

Question

Hello i am trying to make a wrapper for handling rows and columns results from a MySQL query. The return data from an statement can be an string or NULL pointer. So here is my attempt:

class RowWrapper {
public:
    std::vector< std::vector <std::string> > data;
    void SetVector(unsigned int rows, unsigned int columns);
};

void RowWrapper::SetVector(unsigned int rows, unsigned int columns)
{
    for (int x = 0; x > rows; x++)
    {
        std::vector<std::string> p_rows;
        for (int y = 0; y > columns; y++)
        {
            p_rows.push_back(x*y); //Error here
        }
        data.push_back(temp_rows);
    }
}

The error i have is there is no instance for overloaded function, probably missing something about vectors or strings.

Answer 1

Your loop goes for as long as x > rows? And then you are incrementing? I think this might run for ever...or for as long as you don't pass the maximal int value

Also, your push_back takes an int as argument and there is no constructor for string that takes an int value as argument. The overloaded function error might result from that?