std::shared_ptr::operator<<

From cppreference.com
< cpp‎ | memory‎ | shared ptr
 
C++
 
Utilities library
Type support (basic types, RTTI, type traits)
Dynamic memory management
Error handling
Program utilities
Variadic functions
Library feature-test macros
Date and time
Function objects
(C++11)
(C++11)
(C++14)
Relational operators (deprecated in C++20)
Comparisons (C++20)
Common vocabulary types
(C++11)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)

Swap, forward and move
(C++14)
(C++11)
(C++11)
(C++11)
Elementary string conversions
(C++17)
(C++17)
(C++17)
Type operations
(C++11)
(C++17)
(C++17)
 
Dynamic memory management
Uninitialized storage
(C++17)
(until C++20)
(until C++20)
(until C++20)
Garbage collection support
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
Miscellaneous
(C++11)
(C++20)
(C++11)
(C++11)
(C++20)
C Library
Low level memory management
 
std::shared_ptr
 
template <class T, class U, class V>
std::basic_ostream<U, V>& operator<<(std::basic_ostream<U, V>& os, const std::shared_ptr<T>& ptr);

Inserts the value of the pointer stored in ptr into the output stream os

Equivalent to os << ptr.get().

Parameters

os - a std::basic_ostream to insert ptr into
ptr - the data to be inserted into os

Return value

os

Example

Run this code
#include <iostream>
#include <memory>
 
class Foo {};
 
int main()
{
    auto sp = std::make_shared<Foo>();
    std::cout << sp << '\n';
    std::cout << sp.get() << '\n';
}

Possible output: 

0x6d9028
0x6d9028

See also

 returns the stored pointer
(public member function)
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/operator_ltlt&oldid=97315"