std::shared_ptr::operator*, std::shared_ptr::operator->
From cppreference.com
< cpp | memory | shared ptr
| T& operator*() const;
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(1) | (since C++11) |
| T* operator->() const;
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(2) | (since C++11) |
Dereferences the stored pointer. The behavior is undefined if the stored pointer is null.
Contents |
[edit] Parameters
(none)
[edit] Return value
1) The result of dereferencing the stored pointer, i.e., *get()
2) The stored pointer, i.e., get()
[edit] Exceptions
noexcept specification:
noexcept
[edit] Remarks
When T is a (possibly cv-qualified) void, it is unspecified whether function (1) is declared.
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When |
(since C++17) |
If either function is declared despite being unspecified, it is unspecified what its return type is, except that the declaration (although not necessarily the definition) of the function is guaranteed to be legal. This makes it possible to instantiate std::shared_ptr<void>.
[edit] Example
Run this code
#include <iostream> #include <memory> struct Foo { Foo(int in) : a(in) {} void print() const { std::cout << "a = " << a << '\n'; } int a; }; int main() { auto ptr = std::make_shared<Foo>(10); ptr->print(); (*ptr).print(); }
Output:
a = 10 a = 10
[edit] See also
| returns the stored pointer (public member function) |