C / C++ / MFC

suchuhui wrote:

but no serial-number is given in the structure

suchuhui wrote:

fond out that DiskId is the most suitable one apart from commercial library.

#include <iostream>
#include <fstream>
#include <string>
 
using namespace std;
 
int main(int argc, char* argv[])
{
    int row = 0;
    int col = 0;
 
    do
    {
        cout << "Enter line number ";
        cin >> row;
        cout << "Enter column number ";
        cin >> col;
 
        if (row < 1 || col < 1)
            return 0;
 
        ifstream ifs(argv[1]);
 
        string str;
        int x = 1;
        for (x = 1; x <= row && !ifs.eof(); ++x)
            ifs >> str;
 
        if (ifs.eof())
            cout << "Invalid line" << endl;
        else if (col > str.length())
            cout << "Invalid column" << endl;
        else
            cout << str.c_str()[col - 1] << endl;
        ifs.close();
    } while (1);
}

PJ Arends wrote:

ifs >> str;

Kixdemp wrote:

I don't want to use C++ style

Kixdemp wrote:

Is that suppossed to get a line?

PJ Arends wrote:

Kixdemp wrote:
I don't want to use C++ style



In your original post you asked for standard C++, so that is what I gave you.

string curLine;<br />
f[x] >> curLine;

ifstream * f[3];<br />
	f[0] = new ifstream(string(map + ".ml1").c_str());<br />
	f[1] = new ifstream(string(map + ".ml2").c_str());<br />
	f[2] = new ifstream(string(map + ".ml3").c_str());

string curLine;<br />
			(ifstream&)f[x] >> curLine;

SWDevil wrote:

...the application crashes, and I don't understand why...

SWDevil wrote:

Another question - after the row: rs.Open(CRecordset::snapshot, strSQL, CRecordset::readOnly); is executed, how do I read the data that was retrieved by the SQL query? is it in the recordset object?

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

SWDevil wrote:

About the recordset - what member variables hold the values? I looked at the MSDN help and could not see any variables that actually hold any data...

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli