std::unique_ptr<T,Deleter>::get
Min standard notice:
Returns a pointer to the managed object or nullptr if no object is owned.
# Declarations
pointer get() const noexcept;
(since C++11) (constexpr since C++23)
# Return value
Pointer to the managed object or nullptr if no object is owned.
# Example
#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 = " << std::quoted(r.s) << "; }";
}
};
int main()
{
std::unique_ptr<Res> up(new Res{"Hello, world!"});
Res* res = up.get();
std::cout << *res << '\n';
}