Function MakeWritableByteSpan

src/span.h:89–92

}
template <typename V>
auto MakeWritableByteSpan(V&& v) noexcept
{
    return std::as_writable_bytes(std::span{std::forward<V>(v)});
}

// Helper functions to safely cast basic byte pointers to unsigned char pointers.
inline unsigned char* UCharCast(char* c) { return reinterpret_cast<unsigned char*>(c); }