Can't read from file for no reason

[Ardeshir81]

HI!
I have two functions they are exactly the same :

int ShowStudentsInfo () // This function reads the file "student.txt" and shows all of the informations in the sort which they appear in the file
{
    fstream fstu ("student.txt" , ios :: in) ; // fstu = File Student
    int num ; // Number of students in file
    fstu >> num ;
    cout << "\n\nThere are " << num << " students in student.txt :" ;
    string line ; // This is used for reading each line from the file
    while (! fstu.eof ())
    {
        getline (fstu , line) ;
        cout << endl << line ;
    }
    return 1 ;
}

int ShowProfessorsInfo () // This function reads the file "professor.txt" and shows all of the informations in the sort which is in the file
{
    fstream fpro ("professor.txt" , ios :: in) ; // fstu = File Professor
    int num ; // Number of Professors in file
    fpro >> num ;
    cout << "\n\nThere are " << num << " professors in professor.txt :" ;
    string line ; // This is used for reading each line from the file
    while (! fpro.eof ())
    {
        getline (fpro , line) ;
        cout << endl << line ;
    }
    return 1 ;
}

The only thing they do is to show the content of files exactly as it is .
and these are my files :
student.txt

3

ali
hassani
3901010123
diploma
computer
92/2/10

reza
mahdavi
1235966325
BS
electronic
92/3/5

zahra
bagheri
6652135421
diploma
civil
91/06/15

professor.txt

3

hamed
hamidi
1001
civil
associate Professor
91/02/15

morteza
jafari
1005
computer
assistant Professor
91/01/20

mahdi
foladi
1006
computer
professor
90/10/10

ShowProfessorsInfo () works correctly BUT ShowStudentsInfo () outputs this :

There are 0 students in student.txt :
//Infinite loop

Why is that ?
And it was working correctly till yesterday , but Today when I trien to run it I faced this problem !
I couldn't find any thing strange , check if you can please !
THNX !

[nvrmnd]

are you sure there is no newline before 3 in students.txt ?

and try to use this instead:

while (getline (fstu , line))
    {
          cout << endl << line ;
    }

[AbstractionAnon]

Are you sure the file is there and named correctly in the second case?

In neither function do you check that the open succeeded.
If the open fails, you will get the behaviour you are experiencing.
You should check in your code that the open succeeds and if doesn't you should display an error and exit.

If the open fails, the failbit will be set and fpro >> num; won't be executed.

[Ardeshir81]

Thank YOU @nevermore28 and @AbstractionAnon
Yes I'm sure there is no new line and Yes I put an "if (fst.good ())" and it was good , both files are in same folder as the project and main.cpp is and still it is strange .
I think I'm missing something somewhere .
I will chek it later !
Thenks for your help , I appreciate it.