Connect ofstream and streambuf and operations with streambufs. : ofstream « File « C++

1. C++
2. File
3. ofstream

Connect ofstream and streambuf and operations with streambufs.

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

int main(void){
   int c;
   char *filename = "test.txt";
   ofstream outfile;
   streambuf *out, *input = cin.rdbuf();

   outfile.open( filename, ios::ate | ios::app);
   if (!outfile) 
   {
      cerr << "Could not open " << filename;
      return(-1);
   }

   out = outfile.rdbuf();  

   while ( (c = input -> sbumpc() ) != EOF){
      cout << char(c);                         // Echo to screen.
      if (out -> sputc(c) == EOF)
         cerr << "Output error";
   }
}
  
    
  

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