Unformatted I/O using cin.read, cin.gcount and cout.write : cin « Development « C++ Tutorial

1. C++ Tutorial
2. Development
3. cin

#include <iostream>
using std::cin;
using std::cout;
using std::endl;

int main()
{
   const int SIZE = 80;
   char buffer[ SIZE ];

   cout << "Enter a sentence:" << endl;
   cin.read( buffer, 20 );

   cout.write( buffer, cin.gcount() );
   cout << endl;
   return 0;
}

Enter a sentence:
This is a sentence.
This is a sentence.