file stream problem

[levone]

this code.

#include <iostream>
#include <fstream>

int main()
{
	using namespace std;

	char ch;
	ifstream infile;
	ofstream outfile;

	infile.open("test.txt");
	
	if(infile)
	{
		cout << "file contains:" << endl;
		while((ch = infile.get()) != EOF)
			cout << ch;
		cout << endl;
		cout << "end of file" << endl;
	}
	infile.close();

	outfile.open("test.txt", ios::app);

	if(outfile)
	{
		cout << "inpute test then insert EOF to save" << endl;
		while((ch = cin.get()) != EOF)
			outfile.put(ch);
	}
	outfile.close();

	infile.open("test.txt");
	if(infile)
	{
		cout << "file contains" << endl;
		while(infile.get(ch))
			cout << ch;
	}

	return 0;
}

isn't working right.

file contains:
this is a sample text editor, it allowes the simple creation of text files and t
he appending to those text files.

there is but one way to use such a usless program. as practice and nothing more.

that is all, tab <tab>          that is tab.
hello world
hello

end of file
inpute test then insert EOF to save
some text
^Z
Press any key to continue . . .

it reads the file the first time just fine.
then i input "some text" and it writes it just fine.
however when i reuse the "infile" stream it doesn't work.
idk why, i closed it and everything.

this bothers me cause similar code was in my book and it did the same thing, i just ignored it at the time. now i want to solve the problem.

[firedraco]

When you reach the EOF of the file, it sets a bit that isn't reset when you open a new file. You need to use the .clear() like this:

    outfile.close();

    infile.clear(); //add this
    infile.open("test.txt");
    if(infile)

[levone]

thank you.
figured it was something like that, after looking at the stream with the debuger it didn't really look like it was err... "clean" after the close.

thanks again.