read word by word from file in C++

Question

this function should read a file word by word and it does work till the last word, where the run stops

void readFile(  )
{
    ifstream file;
    file.open ("program.txt");
    string word;
    char x ;
    word.clear();

    while ( ! file.eof() )
    {
        x = file.get();

        while ( x != ' ' )
        {
            word = word + x;
            x = file.get();
        }

            cout<< word <<endl;
            word.clear();

    }
}

any one see what is the problem and how it can be solved??

Answer 1

First of all, don't loop while (!eof()), it will not work as you expect it to because the eofbit will not be set until after a failed read due to end of file.

Secondly, the normal input operator >> separates on whitespace and so can be used to read "words":

std::string word;
while (file >> word)
{
    ...
}