CODEWITHSUNDEEP
c++
SHR
SHR

Reputation: 496

A program that removes commas from numbers

I need to write a program that reads numbers from a file, removes the commas, and writes the numbers to a new file. I have managed to do most for the work, but I don't know how to add the spaces between the numbers in the new file. This is my program

 int main()
{
    ifstream numbersDs;        // input: numbers data stream
    ofstream nubersNoComma;

    projDit();  // Project details 

    // Check if the files exist.
   numbersDs.open(inFile);
   nubersNoComma.open(outFile);

   char c;

   numbersDs >> c;

    while (!numbersDs.eof())
            {
            while ((c != ',') && (!numbersDs.eof())) \\ another .eof to avoid inf loop          
                {
                cout << c ;
                nubersNoComma << c;
                numbersDs >> c;
                }

            cout << c ;
            numbersDs >> c;
        }

    nubersNoComma.close();
    numbersDs.close(); 
}

this is the input:

148,540 5345 34,456 2 1,002

this is the output:

14854053453445621002

Upvotes: 2

Views: 167

Answers (2)

user1767754
user1767754

Reputation: 25154

This code should help you, as "Dan Hook" mentioned, you have to further consider skipping white spaces when using stringstreams, fstreams. 

while (!numbersDs.eof())
        {
        while ((c != ',') && (!numbersDs.eof()))
            {
            cout << c ;
            nubersNoComma << c;
             numbersDs>>std::noskipws >> c;
            }
            nubersNoComma << " ";

        cout << c ;
        numbersDs >> c;
    }

Upvotes: 0

Dan Hook
Dan Hook

Reputation: 7088

ifstream is eating the whitespace. Add the following:

numbersDs >> std::noskipws;

Upvotes: 2

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