fstream

what is wrong with this?

Code:

---

#include <iostream>
#include <fstream>
using namespace std;

        ifstream fin;
        ofstream fout;
       
int main()
{
        char* tname = 0;
        cout << "Enter the name of the file to change :" << endl;
        cin >> tname;
        fout.open(tname);
        if (! fout.is_open())
        {
                cout << "Error opening file";
                return 1;
        }
        fout << "yo bob!";
        fout.close();
        return 0;
}

---

my app crash when i try to run it..?

Your not allocating space for your pointer...your just decalring a pointer. Either use new to create some space or don't use a pointer.

Use std::string:

Code:

---

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

       
int main()
{
        ofstream fout;
        string tname;
        cout << "Enter the name of the file to change :" << endl;
        cin >> tname;
        fout.open(tname.c_str());

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