Question

Create a C++ function that reads a line of text from a file (of any name), saves the line, and prints it out using cout.

Use the string stream class <sstreams>

Answer 1

Given below is the code for question. Please do rate the answer if it helped. Thank you.

input.txt
----
apples are red
violets are blue

main.cpp
----
#include <iostream>
#include <sstream>
#include <fstream>
using namespace std;
int main(){
   string filename;
   cout << "Enter input filename: ";
   cin >> filename;
  
   ifstream infile(filename.c_str());
   if(infile.fail()){
       cout << "ERROR: could not open input file " << filename << endl;
       return 0;
   }

   string line;
   getline(infile,line);
   infile.close();
  
   stringstream ss(line);
   cout << "The line read from file is " << ss.str() << endl;
  
}

output
---
Enter input filename: input.txt
The line read from file is apples are red