Pointers.h

#pragma once
 
#include <memory>
 
namespace spark::lib
{
    template <typename T>
    constexpr std::shared_ptr<T> as_shared(std::unique_ptr<T>&& ptr)
    {
        return std::shared_ptr<T>(std::move(ptr));
    }
 
    template <typename To, typename From>
    constexpr std::unique_ptr<To> static_unique_pointer_cast(std::unique_ptr<From>&& old)
    {
        return std::unique_ptr<To>(static_cast<To*>(old.release()));
    }
 
    template <typename To, typename From>
    constexpr std::unique_ptr<To> reinterpret_unique_pointer_cast(std::unique_ptr<From>&& old)
    {
        return std::unique_ptr<To>(reinterpret_cast<To*>(old.release()));
    }
 
    template <typename To, typename From>
    constexpr std::unique_ptr<To> dynamic_unique_pointer_cast(std::unique_ptr<From>&& old)
    {
        return std::unique_ptr<To>(dynamic_cast<To*>(old.release()));
    }
}