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std::shared_ptr::get(3) C++ Standard Libary std::shared_ptr::get(3) NAME std::shared_ptr::get - std::shared_ptr::get Synopsis T* get() const noexcept; (until C++17) element_type* get() const noexcept; (since C++17) Returns the stored pointer. Parameters (none) Return value The stored pointer. Notes A shared_ptr may share ownership of an object while storing a pointer to another object. get() returns the stored pointer, not the managed pointer. Example // Run this code #include <iostream> #include <memory> #include <string_view> int main() { auto output = [](std::string_view msg, int const* pInt) { std::cout << msg << *pInt << " in " << pInt << "\n"; }; int* pInt = new int(42); std::shared_ptr<int> pShared = std::make_shared<int>(42); output("Naked pointer ", pInt); // output("Shared pointer ", pShared); // compiler error output("Shared pointer with get() ", pShared.get()); delete pInt; std::cout << "\nThe shared_ptr's aliasing constructor demo.\n"; struct Base1 { int i1{}; }; struct Base2 { int i2{}; }; struct Derived : Base1, Base2 { int i3{}; }; std::shared_ptr<Derived> p(new Derived()); std::shared_ptr<Base2> q(p, static_cast<Base2*>(p.get())); std::cout << "q shares ownership with p, but points to Base2 sub- object:\n" << "p.get(): " << p.get() << '\n' << "q.get(): " << q.get() << '\n' << "&(p->i1): " << &(p->i1) << '\n' << "&(p->i2): " << &(p->i2) << '\n' << "&(p->i3): " << &(p->i3) << '\n' << "&(q->i2): " << &(q->i2) << '\n'; } Possible output: Naked pointer 42 in 0xacac20 Shared pointer with get() 42 in 0xacac50 The shared_ptr's aliasing constructor demo. q shares ownership with p, but points to Base2 subobject: p.get(): 0xacac20 q.get(): 0xacac24 &(p->i1): 0xacac20 &(p->i2): 0xacac24 &(p->i3): 0xacac28 &(q->i2): 0xacac24 See also operator* dereferences the stored pointer operator-> (public member function) http://cppreference.com 2022.07.31 std::shared_ptr::get(3)
NAME | Synopsis | Parameters | Return value | Notes | Example | Possible output: | See also
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