copy txt file to string c++ code example

Example: c++ read text file to string

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

int main()
{
  ifstream ifs("myfile.txt");
  //Two ways:
  
  //Assign it at initialization
  string content( (istreambuf_iterator<char>(ifs) ),
                  (istreambuf_iterator<char>()    ) );
  
  //Assign it after initialization
  content.assign( (istreambuf_iterator<char>(ifs) ),
                  (istreambuf_iterator<char>()    ) );
  return 0;
}