seek and Skip : file pointer « File Stream « C++ Tutorial

1.	Language Basics
2.	Data Types
3.	Operators statements
4.	Array
5.	Development
6.	Exceptions
7.	Function
8.	Structure
9.	Class
10.	Operator Overloading
11.	Pointer
12.	File Stream
13.	template
14.	STL Introduction
15.	string
16.	vector
17.	list
18.	bitset
19.	set multiset
20.	valarray
21.	queue stack
22.	deque
23.	map multimap
24.	STL Algorithms Modifying sequence operations
25.	STL Algorithms Non modifying sequence operations
26.	STL Algorithms Binary search
27.	STL Algorithms Sorting
28.	STL Algorithms Merge
29.	STL Algorithms Min Max
30.	STL Algorithms Iterator
31.	STL Algorithms Heap
32.	STL Algorithms Helper

C / ANSI-C

C Tutorial

C++

Visual C++ .NET

C++ Tutorial » File Stream » file pointer

12.6.7.seek and Skip

#include <fstream>

#include <iostream>



using namespace std;



int main(){

    ifstream in("datafile");

    in.unsetf(ios::skipws);                     

    char ch;

    while (in >> ch) {                          

    cout << ch;                                 

    }

    cout << '\n';

    in.clear();

    in.seekg(ios::beg);                         

    in.setf(ios::skipws);                       

    while (in >> ch) {                          

         cout << ch;                            

    }

    cout << '\n';

    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

www.java2java.com | Contact Us

All other trademarks are property of their respective owners.