Seek 0 to reset the file pointer : file pointer « File Stream « C++ Tutorial

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C++ Tutorial » File Stream » file pointer

12.6.9.Seek 0 to reset the file pointer

#include <fstream>

#include <string>

#include <iostream>

using namespace std;



int main() {

     fstream inout( "invoice.dat", ios::in | ios::out );



     inout << 1234 << " " << 56.78 << " " << "apples" << '\n';



     cout<< inout.tellg()<< endl;           



     cout << inout.tellp() << endl;         



     inout.seekg( 0 );



     cout << inout.tellg() << endl;         



     cout << inout.tellp() << endl;         

     int x = 0;                                                        

     double y = 0.0;                                                   

     string z = " ";                                                   



     inout >> x;                                                       

     inout.seekg( 8, ios::cur );                                       



     inout >> z;                                                       

     cout << x << " " << y << " " << z << endl;                        

     return 0;

}

12.6.file pointer
	12.6.1.	change file at given position
	12.6.2.	get file content at given position
	12.6.3.	Change a file at specific position
	12.6.4.	Check ofstream current marker position
	12.6.5.	move to position 2 in the stream and output a 0 in position 2
	12.6.6.	Tell the current position
	12.6.7.	seek and Skip
	12.6.8.	Test File Position
	12.6.9.	Seek 0 to reset the file pointer
	12.6.10.	seekg( ) moves the pointer offset number of characters from the specified origin
	12.6.11.	uses both seekp( ) and seekg( ) to reverse the first characters in a file.
	12.6.12.	Detecting EOF

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