[seisvelas]

> most modern compiled languages you can add strings and get a string, but strings are in fact immutable and can't be added without making an entirely new string and disposing of the original two.

In my mind, I add two strings like so:

https://gist.github.com/seisvelas/c11d200d0040a3686e47af0068...

That is, I realloc the first string to fit the second inside of it, then add the second string into the new space. But I have no idea what I'm doing. I'm posting this comment so someone can explain to me why my way is bad and why I should be creating a new string to put the others inside (which apparently is what everyone else does!)