strange ofstream output

maarten · 09-16-2003, 07:21 AM

Hi all,

I just started learning c++ and i was fooling around a little bit, trying to make something that would put my input in a file; i wrote this:

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

int main()
{
ofstream SaveFile("text.txt", ios::ate);
SaveFile << cin;
SaveFile.close();

return 0;
}

I compiled and run i, but instead of asking for my input, it just ended and cat text.txt gave 0x8049b38. I know this has something to do with memory, but thats all. It's not terribly important, but if someone could explain - very simple!- why it does that, i can stop losing my sleep over it

.

thx,

maarten

kev82 · 09-16-2003, 07:54 AM

im not too familiar with the iostream library so someone will more than likely tell me im completely wrong but here goes, cin is an object probably of type ifstream, now when an ofstream recieves an object derived from ios or some other basic iostreams class, it gets its address hence here you are writing the address of the cin object to a file.

to do what you want you need something like this:

Code:

#include <iostream>

using namespace std;

int main()
{
    while(!cin.eof())
        cout << (char)cin.get();
    return 0;
}

maarten · 09-16-2003, 12:42 PM

Ah, adresses, thats not for another chapter or 2 I think

But thanks anyway, I will try out your example,

maarten