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std::unique_ptr::get(3)	      C++ Standard Libary      std::unique_ptr::get(3)

NAME
       std::unique_ptr::get - std::unique_ptr::get

Synopsis
	  pointer get()	const noexcept;	 (since	C++11)
					 (constexpr since C++23)

	  Returns  a  pointer to the managed object or nullptr if no object is
       owned.

Parameters
	  (none)

Return value
	  Pointer to the managed object	or nullptr if no object	is owned.

Example
       // Run this code

	#include <iomanip>
	#include <iostream>
	#include <memory>
	#include <string>
	#include <utility>

	class Res {
	    std::string	s;

	public:
	    Res(std::string arg) : s{ std::move(arg) } {
		std::cout << "Res::Res(" << std::quoted(s) << ");\n";
	    }

	    ~Res() {
		std::cout << "Res::~Res();\n";
	    }

	private:
	    friend std::ostream& operator<< (std::ostream& os, Res const& r) {
		return os << "Res { s =	" << quoted(r.s) << "; }";
	    }
	};

	int main()
	{
	    std::unique_ptr<Res> up(new	Res{"Hello, world!"});
	    Res	*res = up.get();
	    std::cout << *res << '\n';
	}

Output:
	Res::Res("Hello, world!");
	Res { s	= "Hello, world!"; }
	Res::~Res();

See also
	  release returns a pointer to the managed  object  and	 releases  the
       ownership
		  (public member function)

http://cppreference.com		  2022.07.31	       std::unique_ptr::get(3)

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