I apologise if this isn't considered a good enough question (since my own solution just works, so I don't actually have a problem), but here goes.
I mean, I was brought up on C and I only learned C++ later, so maybe I'm biased, but still.
In this particular case, there is one library that returns a const char*
, while another library needs a void*
as input. So if I want to call the second library with the result of the first, I will need to write
second(const_cast<void*>(static_cast<const void*>(first())));
Right? That's the only proper way, right?
A char*
can be implicitly converted to a void*
, so your code can be simplified to this:
second(const_cast<char*>(first()));
This is only safe if the definition of second
operates as if its parameter had the type const void*
.
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