StackOverflow Questions for Tag: weak-ptr

yapkm01

Reputation: 3761

C++ why need weak_ptr when we have shared_ptr use_count()?

c++memory-managementc++20shared-ptrweak-ptr

Score: -1

Answers: 2

uray

Reputation: 11572

why i can't cast nullptr to weak_ptr<>

c++castingnullshared-ptrweak-ptr

Score: 30

Answers: 3

oliver

Reputation: 6791

Why does this std::weak_ptr apparently prevent freeing memory, and how can I detect this bug?

c++valgrindundefined-behavioraddress-sanitizerweak-ptr

Score: 18

Answers: 1

cebola

Reputation: 194

Why weak_ptr::use_count may return a different count to shared_ptr::use_count?

c++shared-ptrsmart-pointersweak-ptr

Score: 4

Answers: 1

venkysmarty

Reputation: 11441

How does a weak_ptr prevent cyclic references?

c++c++11shared-ptrweak-ptrcyclic-reference

Score: 89

Answers: 5

oz1cz

Reputation: 5844

How can I use std::enable_shared_from_this in both super and subclass?

c++shared-ptrmultiple-inheritanceweak-ptrenable-shared-from-this

Score: 7

Answers: 3

Brian Bi

Reputation: 119487

When is a std::weak_ptr empty? Is an expired std::weak_ptr empty?

c++language-lawyerstdsmart-pointersweak-ptr

Score: 4

Answers: 2

amutamil

Reputation: 43

Weak pointer library implementation C++

c++shared-ptrsmart-pointersweak-ptrrefcounting

Score: 2

Answers: 1

x f

Reputation: 93

C++ std::weak_ptr::lock() seems to be executed at the same time as the destructor

c++shared-ptrsmart-pointersweak-ptr

Score: 1

Answers: 0

Денис Кулаков

Reputation: 11

C++ std::enable_if member template function overloading for template class

c++templatesshared-ptrenable-ifweak-ptr

Score: 1

Answers: 1

RLT

Reputation: 4287

boost, shared ptr Vs weak ptr? Which to use when?

c++memory-managementboostshared-ptrweak-ptr

Score: 46

Answers: 4

GeoRanger

Reputation: 43

Is std::atomic<std::weak_ptr<>>::compare_exchange_* guaranteed to work if the underlying pointer is expired?

c++multithreadingatomiccompare-and-swapweak-ptr

Score: 1

Answers: 1

Kornel Kisielewicz

Reputation: 57615

What's the performance penalty of weak_ptr?

c++performanceboostweak-ptr

Score: 34

Answers: 3

Илина Бокарева

Reputation: 7

How to use 'this' pointer with smart pointers

c++thissmart-pointersweak-ptr

Score: -1

Answers: 2

SpeakX

Reputation: 385

Update if not Expired on Weak Pointer in Multi-Threaded Context

c++multithreadingthread-safetyshared-ptrweak-ptr

Score: -1

Answers: 1

Violet Giraffe

Reputation: 33605

std::enable_shared_from_this: is it allowed to call shared_from_this() in destructor?

c++c++11destructorshared-ptrweak-ptr

Score: 18

Answers: 4

fat-lobyte

Reputation: 1179

How can you efficiently check whether two std::weak_ptr pointers are pointing to the same object?

c++c++11shared-ptrsmart-pointersweak-ptr

Score: 48

Answers: 1

lequinne

Reputation: 180

Create std::weak_ptr to an indexed value of an array-type std::shared_ptr?

c++stlstdshared-ptrweak-ptr

Score: 4

Answers: 1

Anne Quinn

Reputation: 13030

Casting shared_ptr<Type> to weak_ptr<void> and back

c++shared-ptrweak-ptr

Score: 3

Answers: 2

user1434698

Reputation:

When is std::weak_ptr useful?

c++c++11shared-ptrweak-ptrc++-faq

Score: 385

Answers: 15

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StackOverflow Questions for Tag: weak-ptr

C++ why need weak_ptr when we have shared_ptr use_count()?

why i can&#39;t cast nullptr to weak_ptr&lt;&gt;

Why does this std::weak_ptr apparently prevent freeing memory, and how can I detect this bug?

Why weak_ptr::use_count may return a different count to shared_ptr::use_count?

How does a weak_ptr prevent cyclic references?

How can I use std::enable_shared_from_this in both super and subclass?

When is a std::weak_ptr empty? Is an expired std::weak_ptr empty?

Weak pointer library implementation C++

C++ std::weak_ptr::lock() seems to be executed at the same time as the destructor

C++ std::enable_if member template function overloading for template class

boost, shared ptr Vs weak ptr? Which to use when?

Is std::atomic&lt;std::weak_ptr&lt;&gt;&gt;::compare_exchange_* guaranteed to work if the underlying pointer is expired?

What&#39;s the performance penalty of weak_ptr?

How to use &#39;this&#39; pointer with smart pointers

Update if not Expired on Weak Pointer in Multi-Threaded Context

std::enable_shared_from_this: is it allowed to call shared_from_this() in destructor?

How can you efficiently check whether two std::weak_ptr pointers are pointing to the same object?

Create std::weak_ptr to an indexed value of an array-type std::shared_ptr?

Casting shared_ptr&lt;Type&gt; to weak_ptr&lt;void&gt; and back

When is std::weak_ptr useful?

why i can't cast nullptr to weak_ptr<>

Is std::atomic<std::weak_ptr<>>::compare_exchange_* guaranteed to work if the underlying pointer is expired?

What's the performance penalty of weak_ptr?

How to use 'this' pointer with smart pointers

Casting shared_ptr<Type> to weak_ptr<void> and back