std::enable_shared_from_this::enable_shared_from_this
From cppreference.com
< cpp | memory | enable shared from this
constexpr enable_shared_from_this(); |
(1) | (since C++11) |
enable_shared_from_this( const enable_shared_from_this<T>&obj ); |
(2) | (since C++11) |
Constructs new enable_shared_from_this
object. The private std::weak_ptr<T> member is value-initialized.
Parameters
obj | - | an enable_shared_from_this to copy
|
Exceptions
noexcept specification:
noexcept
Example
Run this code
#include <memory> struct Foo : public std::enable_shared_from_this<Foo> { Foo() {} // implicitly calls enable_shared_from_this constructor std::shared_ptr<Foo> getFoo() { return shared_from_this(); } }; int main() { std::shared_ptr<Foo> pf1(new Foo); auto pf2 = pf1->getFoo(); // shares ownership of object with pf1 }
See also
(C++11) |
smart pointer with shared object ownership semantics (class template) |