C++

Please add in a function in the given program that allows an filename input from the user, thank you.

#include

#include

#include

#include

using namespace std;

int main() {

ifstream inFile;

ofstream outFile;

double salary = 0, percentage = 0;

double updatedSalary;

char firstName[20];

char lastName[20];

inFile.open("Ch3_Ex5Data.txt");

outFile.open("Ch3_Ex5Output.dat");

outFile << setprecision(2) << showpoint << fixed;

while (!inFile.eof()) {

inFile >> lastName >> firstName >> salary >> percentage;

updatedSalary = salary * (1 + (0.01 * percentage));

outFile << firstName << "\t" << lastName << "\t" << updatedSalary << endl;

}

inFile.close();

outFile.close();

return 0;

}