Reports the current read position in the stream.
pos_type tellg( );
Return Value
The current position in the stream.
Remarks
If fail is false, the member function returns rdbuf -> pubseekoff(0, cur, in). Otherwise, it returns pos_type(-1).
Example
// basic_istream_tellg.cpp
// compile with: /EHsc
#include <iostream>
#include <fstream>
int main()
{
using namespace std;
ifstream file;
char c;
streamoff i;
file.open("basic_istream_tellg.txt");
i = file.tellg();
file >> c;
cout << c << " " << i << endl;
i = file.tellg();
file >> c;
cout << c << " " << i << endl;
}
Input: basic_istream_tellg.txt
0123456789
Program Output
0 0
1 1
Requirements
Header: <istream>
Namespace: std