Gemme Array i en fil

Kode 

#include <iostream>
#include <string>
#include <fstream>
#include <algorithm>

int main()
{
   int Array[4] = {12, 14, 16, 18};
   std::ofstream File;
   File.open("Test.dat");
   if(File.is_open())
   {
      std::copy(Array, &Array[4], std::ostream_iterator<int>(File, "\\n"));
   }
}

Kode 

   for(int i = 0; i < 4; i++)
      File << Array[ i ] << std::endl;

Kode 

#include <iostream>
#include <string>
#include <fstream>
#include <algorithm>
#include <iterator>

int main()
{
   {  // Write
      int Array[4] = {12, 14, 16, 18};
      std::ofstream OutFile;
      OutFile.open("Test.dat");
      if(OutFile.is_open())
      {
         std::copy(Array, &Array[4], std::ostream_iterator<int>(OutFile, "\\n"));
      }
      OutFile.close();
   }
   { // Read
      std::ifstream InFile;
      InFile.open("Test.dat");

      if(InFile.is_open())
      {
         int InArray[4];
         for(int x = 0; x < 4; x++)
            InFile >> InArray[x];

         // Udskriv til
         std::copy(InArray, &InArray[4], std::ostream_iterator<int>(std::cout, "\\n"));
      }
      else
      {
         std::cerr << "Failed to open file for reading" << std::endl;
      }
   }
}