This is a link to my previous question with some code that I have.

Thanks.

Here is the code I have so far.

#include <fstream>
#include <iostream>
#include <cstdlib>

using namespace std;

void clean_file(ifstream& fin, ofstream& fout);

int main()
{
    ifstream fin;
    ofstream fout;
    clean_file(fin, fout);
}

void clean_file(ifstream& fin, ofstream& fout)
{
    fin.open("string.txt");
    if (fin.fail())
    {
        cout << "File could not open.";
        exit(1);
    }
    fout.open("cleanString.txt");
    if (fout.fail())
    {
        cout << "File could not open.";
        exit(1);
    }
    char line;
    while (fin.get(line))
    {
        fout << line;
    }


    fin.close();
    fout.close();
}

The input file I currently have has extra spaces between some of the words and I want to figure out how to check if the string has more than one space and if it does, to replace it with one space. I am thinking I have to check each character by itself and if the consecutive characters are both spaces then I need to replace it with only one. I have searched my question online but I can't find out how to do it by only using the libraries I mentioned before.