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file input: get() after seekg()

After a file is traversed with get() I use seekg() to return to the beginning of the file. This works okay, but when I use get() after I reach the beginning of the file, get() just doesn't get it (so to speak). I don't understand this. Here is some sample code compiled with DJGPP (hope it shows correctly):

#include <iostream.h>
#include <fstream.h>

main()
{
char nextChar;
ifstream readIn("gallery.txt");

if(!readIn)
{
cout << "Can't find the file \"gallery.txt\"" << endl;
return 0;
}

while(readIn.get(nextChar))
{
cout << nextChar;
}

cout << endl << "Place before seekg(): " << readIn.tellg() << endl;
readIn.seekg(0, ios::beg);
cout << endl << "Place after seekg(): " << readIn.tellg() << endl;

cout << "=====================================================" << endl
<< "=====================================================" << endl;

while(readIn.get(nextChar))
{
cout << nextChar;
}

return 0;
}

How do I get input from the second readIn.get()? Why is it not inputting? Is there something I'm doing wrong?

ASKER CERTIFIED SOLUTION

mehlert

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mlev

This happens because the end-of-file flag is still set for readIn.
Do readIn.clear() to clear it (before or after seekg()).