#include <fstream>
#include <iostream>
using namespace std;
int main(){
ifstream file;
file.open("a:test.dat");
if( !file )
cout << "\nCan't open GROUP.DAT";
else
cout << "\nFile opened successfully.";
cout << "\nfile = " << file;
cout << "\nError state = " << file.rdstate();
cout << "\ngood() = " << file.good();
cout << "\neof() = " << file.eof();
cout << "\nfail() = " << file.fail();
cout << "\nbad() = " << file.bad() << endl;
file.close();
return 0;
}
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