reinterpret_cast<> for punning purposes can lead to UB. The recommended C++ alternative to avoid UB is bit_cast<>

https://stackoverflow.com/questions/53401654/why-was-stdbit-...

Yeah, you could use it for that, but it’s got some caveats and is unsafe in some cases.

https://en.cppreference.com/cpp/language/reinterpret_cast

EDIT: If you’re able to use C++20 then clearly bit_cast is better.

No.