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std::unique_ptr::get_deleter

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< cpp‎ | memory‎ | unique ptr
Revision as of 16:41, 1 July 2013 by P12bot (Talk | contribs)

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      Deleter& get_deleter();
(since C++11)
const Deleter& get_deleter() const;
(since C++11)

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

Contents

[edit] Parameters

(none)

[edit] Return value

The stored deleter object.

[edit] Exceptions

noexcept specification:  
noexcept
  

[edit] 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...