problem with seekg(), a strange one

[geseeker]

Hi, i want to move the file pointer to the last 128th byte, so i can read the ID3V1 tag in an mp3 file. Here's my code to test the result of moving the file pointer:

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
ifstream fin("tagTest.mp 3");
char c;

fin.seekg(-128, ios_base::end);
cout << fin.eof()<< " " << hex << fin.tellg() << endl;
cin.get();
return 0;
}

and strangely, it always yields the result
0 0

i don't know why, i used seekg(-128, ios_base::end) and nothing happened! the file pointer still points to the beginning of the file. i tried using clear() function but it still doesn't work. Can someone pls help me with this problem? Thanks.

oh, by the way, i'm using Borland C++ Builder 6.

[gpraghuram]

R u opening the file in binary mode?


Raghu

[geseeker]

wow, it works when i open the file in binary mode, thanks!
i spent a whole day trying to figure out the reason. you've been really helpful!