while(true) loop + getline() = infinite loop??
 

Dear all,

Forgive me for posting two threads for the same problem. I was not showing my problem clearly enough in the previous one. Thank Narue for answering that anyway. Now I do it again here:

#include <iostream>

#include <string>

using namespace std;



int main(void)

{

    string inputStr;

    while (true)

    {

        getline(cin, inputStr);

        if (inputStr == "quit") break;

        cout << inputStr << endl;

    }

    return 0;

}

This programme runs fine when I compile and click the executable. But things go wrong if I do it in command-line and redirect the input stream to a text file:

$a.out < inputFile

*The programme does not let me do any input and it loops again and again instead.* I guest this is a problem associated with getline() function.

So what do you think about this?



Jim

Re: while(true) loop + getline() = infinite loop??
 

Don't you mean input from? What are the contents of your input file?

Or do you mean to redirect the output to a file?

$a.out > inputFile

Re: while(true) loop + getline() = infinite loop??
 

Hi Dave,

Oh sorry for my grammer. I actually mean input from:

$a.out < inputFile

Here is what the content of inputFile maybe:

ls

changecc COMP271 5

quiz

quit

The problem occur when the programme has read all the way to the last line:

quit

The programme loops and does not ask me for input.


Jim