Accessing Data in a File : ofstream « File « C++

Home
C++
1.Bitset
2.Class
3.Console
4.Data Structure
5.Data Type
6.Deque
7.Development
8.File
9.Function
10.Generic
11.Language
12.List
13.Map Multimap
14.Overload
15.Pointer
16.Qt
17.Queue Stack
18.Set Multiset
19.STL Algorithms Binary search
20.STL Algorithms Heap
21.STL Algorithms Helper
22.STL Algorithms Iterator
23.STL Algorithms Merge
24.STL Algorithms Min Max
25.STL Algorithms Modifying sequence operations
26.STL Algorithms Non modifying sequence operations
27.STL Algorithms Sorting
28.STL Basics
29.String
30.Valarray
31.Vector
C / ANSI-C
C Tutorial
C++ Tutorial
Visual C++ .NET
C++ » File » ofstreamScreenshots 
Accessing Data in a File
  
#include <algorithm>
#include <cstdlib>
#include <fstream>
#include <functional>
#include <iostream>
#include <iterator>
#include <vector>

using namespace std;

template <class T>
void print(T& c){
   fortypename T::iterator i = c.begin(); i != c.end(); i++ ){
      std::cout << *i << endl;
   }
}

int main(){
   vector<int> output_data10 );
   generateoutput_data.begin(), output_data.end(), rand );

   transformoutput_data.begin(), output_data.end(),output_data.begin(), bind2ndmodulus<int>()10 ) );

   ofstream out"data.txt" );
   if!out )
   {
      cout << "Couldn't open output file\n";
      return 0;
   }

   copyoutput_data.begin(), output_data.end(),ostream_iterator<int>out, "\n" ) );
   out.close();

   ifstream in"data.txt" );
   if!in )
   {
      cout << "Couldn't open input file\n";
      return 0;
   }

   vector<int> input_data( (istream_iterator<int>in )),istream_iterator<int>() );
   in.close();

   printoutput_data );
   printinput_data );
}
  
    
  
Related examples in the same category
1.basic file operations: open and save
2.ofstream: Use read(), write(), ios::out | ios::binaryofstream: Use read(), write(), ios::out | ios::binary
3.Writes information inputted to a fileWrites information inputted to a file
4.ofstream.fail() Demoofstream.fail() Demo
5.Uses put() to write all characters from zero to 255 to a file
6.Output file with ofstream
7.Connect ofstream and streambuf and operations with streambufs.
8.basic file operations
9.writes formatted output to a file, using <<
10.reads strings entered at the keyboard and writes them to disk
11.put( ) to write all characters from zero to 255 to a file called CHARS.
12.eat the newline after the file name
13.Setting the locale to German_Germany
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.