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>>Concatenating two C-strings? That seems like it might be a reasonable specialization.
Perhaps, but it would hardly be a safe operation given the arguments passed to the function (no size...

It's hard to imagine a difficult-to-find bug that would stem from a simple macro like this one. And there are no specializations in this case. And there are no default parameters here. And...

>>A simple function to prove the opposite :
Looks to me like you could do the same thing with a macro...

>>why people stick to C when C++ is the superior language.
As has been mentioned, no stable C++ implementation may be available on the platform you're working with; I imagine it would be more...