"fstream read write mode" Code Answer's

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how to read and write in a file c++

Glamorous Gibbon on Apr 04, 2020

#include <iostream>
#include <fstream>
using namespace std;

ifstream file_variable; //ifstream is for input from plain text files
file_variable.open("input.txt"); //open input.txt

file_variable.close(); //close the file stream
/*
Manually closing a stream is only necessary
if you want to re-use the same stream variable for a different
file, or want to switch from input to output on the same file.
*/
_____________________________________________________
//You can also use cin if you have tables like so:
while (cin >> name >> value)// you can also use the file stream instead of this
{
 cout << name << value << endl;
}
_____________________________________________________
//ifstream file_variable; //ifstream is for input from plain text files
ofstream out_file;
out_file.open("output.txt");

out_file << "Write this scentence in the file" << endl;

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opening file in c++

Soccer Star on Aug 03, 2020

/ fstream::open / fstream::close
#include <fstream>      // std::fstream

int main () {

  std::fstream fs;
  fs.open ("test.txt", std::fstream::in | std::fstream::out | std::fstream::app);

  fs << " more lorem ipsum";

  fs.close();

  return 0;
}

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fstream read write mode

Frail Flatworm on Oct 30, 2020

stream file;
file.open(fileName,ios::in | ios::out);

Source: stackoverflow.com

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"fstream read write mode" Code Answer's

how to read and write in a file c++

opening file in c++

fstream read write mode

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