modifying my program

[HunterIsgonnawin]

I need help modifying my code so that it prompts the user for the file and stores the data there instead

  


#include <iostream>
#include <fstream>
using namespace std;

bool isPrime(int);

int main()
{
int num=0;
int i;
bool prime;

ofstream outFile;
outFile.open("PrimeList.txt");


while (num == 0 )
{
cin >> num;
}


for(i=2;i<num;i++)
if(isPrime(i))
outFile << i << "\n";


cout << "Prime numbers written to PrimeList.txt.\n";
outFile.close();
return 0;
}
bool isPrime(int n)
{
int i;
for(i=2;i<n-1;i++)
if(n%i==0)
return false;
return true;
}

[keskiverto]

You can read numbers from user. How is reading a filename different?

[Ganado]

Use strings

Make sure you #include <string>

string filename;
cin >> filename;
ofstream outFile(filename); // same as .open(filename)