Invisible wrote:

> At present, I haven't figured out how to convert a string to an integer 
> yet, so this "calculator" is pretty much useless. I'm sure it'll be 
> explained later in the tutorial.

The tutorial recommends the C function atoi() - which, being a C 
function, is about as user-friendly as Windows 2. Much hair-pulling 
involving pointers ensues.

(It turns out that you can assign a string to a char*, but not the 
reverse. Go figure. Anyway, the solution is simple enough...)

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