Hi I am new on C++ but I have experience on other languages

I have the following code:

        streampos begin,end;       

        char delimeter[3] = {',', '\n', '\0'};

        int numChars = 0;

        int pos1 = 0, pos2 = 0, pos3 = 0, startIndex = 0, studentIndex = 0;

        ifstream file1("Students1.csv", ios::in);

        if (!file1) throw MyExceptions();

        begin = file1.tellg();

        file1.seekg (0, ios::end);

        end = file1.tellg();

        int size =  end - begin;

        file1.seekg(0, ios::beg);     

        char charField[size];        

        while(file1.getline(charField, size, '\n'))

        {

            char *tmpCharField1 = charField;                       

            numChars = file1.gcount();

            CustomString tmpStudent(tmpCharField1, numChars);

            pos1 = tmpStudent.findCharacter(&delimeter[0], startIndex);

            CustomString tmpStudentCode = tmpStudent.subString(startIndex, pos1);

            pos2 = tmpStudent.findCharacter(&delimeter[0], (pos1 + 1));

            CustomString tmpFirstName = tmpStudent.subString((pos1 + 1), pos2);

            pos3 = tmpStudent.findCharacter(&delimeter[2], (pos2 + 1));

            CustomString tmpSecondName = tmpStudent.subString((pos2 + 1), pos3);

            Student *student1 = new Student(tmpStudentCode, tmpFirstName, tmpSecondName);

            this->StudentVector.push_back(student1);

            studentIndex++;

        }       

        file1.close();

I am trying to read a file with Greek letters where the file is as this:

SR000001,ΕΠΩΝΥΜΟ 0001,ΟΝΟΜΑ 0001

SR000002,ΕΠΩΝΥΜΟ 0002,ΟΝΟΜΑ 0002

SR000003,ΕΠΩΝΥΜΟ 0003,ΟΝΟΜΑ 0003

SR000004,ΕΠΩΝΥΜΟ 0004,ΟΝΟΜΑ 0004

SR000005,ΕΠΩΝΥΜΟ 0005,ΟΝΟΜΑ 0005

SR000006,ΕΠΩΝΥΜΟ 0006,ΟΝΟΜΑ 0006

SR000007,ΕΠΩΝΥΜΟ 0007,ΟΝΟΜΑ 0007

The format is on UTF8, I use NetBeans 8.1 on Windows 10 64 bit machine with MINGW-64. How can I read the Greek letters as 1 byte data? Please do not say me that the reading is not ok, I have to do an assignment without using string or string methods…

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