Reading Data from file using read function in c++

Asked Aug 09 '17 at 09:47

Active Aug 10 '17 at 07:55

Viewed 584 times

void fileRead()
{
    student s22;
    fstream out;
    out.open("ABC.txt",ios::in);
    while(!out.eof())
    {
        out.read((char *)&s22,sizeof(s22));
        cout<<s22.roll_no<<"\t"<<s22.name<<"\t\t"<<s22.marks<<"\t"<<endl;
    }
}

When I try to read data from file using read function in C++ then it return last record 2 times.

Output like this:
11  Ram    70
12  Mohan  80
12  Mohan  80

I do not understand this problem. Please help me to solve this.

edited Aug 10 '17 at 07:55

asked Aug 09 '17 at 09:47

Rohit Chugh

2

Possible duplicate of [Why is iostream::eof inside a loop condition considered wrong?](https://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong) – Some programmer dude Aug 09 '17 at 09:49
`iostream::eof` will only return true when it reads the last line of file. – svtag Aug 09 '17 at 10:32
Thanks, it works fine – Rohit Chugh Aug 16 '17 at 12:44

Reading Data from file using read function in c++

0 Answers0