To read or write to a file, you include : fstream « File « C++

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C++ » File » fstream

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To read or write to a file, you include

  

#include <fstream>

int main()

{

  using namespace std;



  int intValue;

  float realValue;

  ifstream inData;

  ofstream outData;



  inData.open("input.dat");

  outData.open("output.dat");



  inData  >> intValue;

  inData  >> realValue;

  outData << "The input values are "

          << intValue  << " and "

          << realValue   << endl;

  return 0 ;

}

Related examples in the same category

1.	fstream seekp: Seek file pointer position
2.	Reverse file content
3.	Demonstrate File random access.
4.	Reverses the first N characters within a file
5.	File Stream Objects as Function Arguments

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