How would I create an input and ouput file, at runtime if they do not exist?

[Bdanielz]

Below is the code I am playing with (I realize its not working currently)
but wanted to know if there is a good way to accomplish this
Doing a bunch of i/o exercises and I am attempting to create a boilerplate to help with some of my foot work.

In pseudo

check for inFile
if Present 
echo that its present
if inFile does not exist
create inFile
echo that its present

repeat for outfile

Code I have been playing around with blindly...
still learning about i/o

#include <iostream>
#include <fstream>
#include <string>
#include <unistd.h>

using namespace std;

int main(int argc, const char * argv[])
{
    
    ifstream inFile;
    inFile.open("inData.txt", ifstream::in);
    if (!inFile.is_open()) {
        inFile.open("inData.txt", ifstream::out);
    }

    
    ofstream outFile;
    
    outFile.open("outData.txt", ifstream::out);
    if (outFile.is_open()) {
        cout << "outFile is open" << endl;
    }
    
    char * dir = getcwd(NULL, 0); // Platform-dependent, see reference link below
    printf("Current dir: %s", dir);
    return 0;
}

[Dy7SLyTq]

if you try to open a file with ofstream and it doesnt exist it will create it.