fstream read write mode

Solutions on MaxInterview for fstream read write mode by the best coders in the world

showing results for - "fstream read write mode"
Erika
28 Sep 2017
1#include <iostream>
2#include <fstream>
3using namespace std;
4
5ifstream file_variable; //ifstream is for input from plain text files
6file_variable.open("input.txt"); //open input.txt
7
8file_variable.close(); //close the file stream
9/*
10Manually closing a stream is only necessary
11if you want to re-use the same stream variable for a different
12file, or want to switch from input to output on the same file.
13*/
14_____________________________________________________
15//You can also use cin if you have tables like so:
16while (cin >> name >> value)// you can also use the file stream instead of this
17{
18 cout << name << value << endl;
19}
20_____________________________________________________
21//ifstream file_variable; //ifstream is for input from plain text files
22ofstream out_file;
23out_file.open("output.txt");
24
25out_file << "Write this scentence in the file" << endl;
Erika
23 Oct 2016
1/ fstream::open / fstream::close
2#include <fstream>      // std::fstream
3
4int main () {
5
6  std::fstream fs;
7  fs.open ("test.txt", std::fstream::in | std::fstream::out | std::fstream::app);
8
9  fs << " more lorem ipsum";
10
11  fs.close();
12
13  return 0;
14}
Juan Martín
06 May 2018
1stream file;
2file.open(fileName,ios::in | ios::out);
3
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