Fix break strict aliasing

[phprus]

Fix for issue: #2

[greg7mdp]

Thanks for the PR, Vladislav. However, I don't think it changes what actually is done, and does an extra copy, so I'm reluctant to merge this if the only reason is to appease the compiler. Please let me know if I'm misunderstanding

[phprus]

This is std::bit_cast() analog (GCC-11+, Clang-14+, MSVC 19.27+).

Without memcpy the compiler can remove read from val. See https://en.cppreference.com/w/cpp/language/reinterpret_cast#Type_aliasing

There will be no copying:
https://godbolt.org/z/7cheKbbTr

[greg7mdp]

Fantastic! I learned something today! thanks!