Member Avatar for shahidrasul

Please tell me how to read integer value from file using c++ classes.

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  • Latest Post Latest Post by Radical Edward
Member Avatar for Radical Edward

It's easy! All you have to do is create an ifstream object and then use it just like you use cin:

#include <fstream>
#include <iostream>

int main()
{
  ifstream is("filename");
  int input;

  if (is >> input)
    std::cout << "Read " << input << '\n';
  else
    std::cout << "Couldn't read an integer\n";
}

:)

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