may sound trivial to many but...
Qt Code: 
  1. QString thing("");
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makes an empty but non-null string

calling clear() on is makes it both empty and null.
I'm sure that's what it's meant to do but does that make sense?
wouldn't be better to have a clear() that empties the string and a reset() to null it?

I recursively use a string, and need it emptied - do I have to empty my string with thing = "";

maybe it's a bit pedantic?
tell me it's pedantic.
thanks
K