Write a program to illustrate the use of seekg() and tellg().

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Bipin Tiwari · Accepted Answer

Program to use seekg() and  tellg() // C++ program to Read a record from a File // using seekg() and tellg() #include <bits/stdio.h> using namespace std; class student { int id; char Name[20]; public: void display(int K); }; void student::display(int K) { fstream fs; fs.open('student.dat', ios::in | ios::binary); // using seekg(pos) method // to place pointer at 7th record fs.seekg(K * sizeof(student)); // reading Kth record fs.read((char*)this, sizeof(student)); // using tellg() to display current position cout << 'Current Position: ' << 'student no: ' << fs.tellg() / sizeof(student) + 1; // using seekg()place pointer at end of file fs.seekg(0, ios::end); cout << ' of ' << fs.tellg() / sizeof(student) << endl; fs.close(); } // Driver code int main() { // Record number of the student to be read int K = 7; student s; s.display(K); return 0; } Output: Current Position: student no: 9 of 100

Write a program to illustrate the use of seekg() and tellg().

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Write a program to illustrate the use of seekg() and tellg().

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