read a file c++
// reading a text file
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main () {
string line;
ifstream myfile ("example.txt");
if (myfile.is_open())
{
while ( getline (myfile,line) )
{
//use line here
}
myfile.close();
}
else cout << "Unable to open file";
return 0;
}how to output to a file in c++
// 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;
}write in file cpp
#include <iostream>
#include <fstream>
using namespace std;
int main() {
fstream my_file;
my_file.open("my_file.txt", ios::out);
if (!my_file) {
cout << "File not created!";
}
else {
cout << "File created successfully!";
my_file << "Guru99";
my_file.close();
}
return 0;
}write to file in C++
ofstream myfile;
myfile.open("file.txt");
myfile << "write this to file"Copyright © 2021 Codeinu
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