File c++

C++ files

// basic file operations
#include <iostream>
#include <fstream>
using namespace std;

int main () {
  ofstream myfile;
  myfile.open ("example.txt");
  myfile << "Writing this to a file.\n";
  myfile.close();
  return 0;
}

File c++

#include <iostream>
#include <string>
#include <fstream> //write and read
//#include <ifstream> //read
//#include <ofstream> //write

int main () {
  std::string line;
  std::ofstream myfileWrite;
  std::ifstream myfileRead;
  myfileWrite.open("example.txt");
  myfileRead.open("example.txt");
  myfileWrite << "Writing this to a file.\n";
  while (getline(myfileRead,line)){
    std::cout << line << '\n';
  }
  myfileWrite.close();
  myfileRead.close();
  return 0;
}

C++ lettura file

#include <fstream.h>

void main() 
{
  ifstream OpenFile("cpp-input.txt");
  char ch;
  while(!OpenFile.eof())
  {
    OpenFile.get(ch);
    cout << ch;
  }
  OpenFile.close();
}

Source: mrwebmaster.it

Files c++

fstream  afile;
afile.open("file.dat", ios::out | ios::in );

Source: tutorialspoint.com

Apertura file in c++

std::ifstream ifs("foo.txt");  // ifstream: Opens file "foo.txt" for reading only.

std::ofstream ofs("foo.txt");  // ofstream: Opens file "foo.txt" for writing only.

std::fstream iofs("foo.txt");  // fstream:  Opens file "foo.txt" for reading and writing.

Source: riptutorial.com

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