Alright, my problem is kind of unusual my code compiles but it doesn't work, here is an example of what I mean.
What I need it to do is when the person types "done" and presses enter, it leaves the while statement, but it will not work, why is my code so grumpy? That's just a simple example.

Use string instead of array of chars

You can't use the standard relational/inequality operators with arrays/C-strings. You either need to loop through element-by-element (works for all arrays), or use the strcmp() function (works for null-terminated character arrays i.e. C-strings). The latter option is probably what you want here:


The strcmp() function is a little weird from the usual true/false perspective, since it returns 0 if the strings are equal (hence the lack of the ! in the while control statement). Note that I've also initialized the array option to zeros, just on the off-chance that the random data in memory at that location starts out with the string "done" (unlikely, but why take a chance?).

Hope that helps,

-jjh

*edit - p.s. or use nirvanarupali's solution above. The std::string is a great little container, and that's probably a cleaner solution, but it's not clear from your code whether you're restricted to using C-style strings for this code.

This post has been edited by jjhaag: 10 Dec, 2007 - 07:08 PM

Thank you, that example you gave worked wonderfully, but I have one question, when I don't have the getline before the while, it doesn't work, is there a loophole around this?

Because you need to have a user input, and then the while loop checks it.

Yep. You can either initialize the string to a value other than done (an empty string works fine here), or use a do-while loop: