std::unique_ptr<T,Deleter>::get_deleter

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< cpp‎ | memory‎ | unique ptr
 
 
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      Deleter& get_deleter() noexcept;
(since C++11)
(constexpr since C++23)
const Deleter& get_deleter() const noexcept;
(since C++11)
(constexpr since C++23)

Returns the deleter object which would be used for destruction of the managed object.

Parameters

(none)

Return value

The stored deleter object.

Example

#include <iostream>
#include <memory>
 
struct Foo
{
    Foo() { std::cout << "Foo...\n"; }
    ~Foo() { std::cout << "~Foo...\n"; }
};
 
struct D
{
    void bar() { std::cout << "Call deleter D::bar()...\n"; }
    void operator()(Foo* p) const
    {
        std::cout << "Call delete for Foo object...\n";
        delete p;
    }
};
 
int main()
{
    std::unique_ptr<Foo, D> up(new Foo(), D());
    D& del = up.get_deleter();
    del.bar();
}

Output:

Foo...
Call deleter D::bar()...
Call delete for Foo object...
~Foo...

See also

returns the deleter of specified type, if owned
(function template)