Hello,
You shouldn't need it, unless you have a bunch of libraries, or are using depreciated methods to implement your thingy. C++ is an extension (add-in) to C, and you can get printf and a bunch of other functions to work just fine within it.
Now, if you are looking for unified code, then I think it is going to be a manual process indeed. IN that case, you could convert your libraries one at a time, as they should still link fine. I am not aware of any big hiccups here.
Christian
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