std::experimental::atomic_weak_ptr::store

C++

Language

Headers

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Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

Technical specifications

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

Library fundamentals 2 (library fundamentals 2 TS)

Extensions for parallelism (parallelism TS)

Extensions for parallelism 2 (parallelism TS v2)

Extensions for concurrency (concurrency TS)

Concepts (concepts TS)

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Special mathematical functions (special math TR)

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experimental::future

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experimental::when_any

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experimental::make_exceptional_future

Latches and barriers

experimental::latch

experimental::barrier

experimental::flex_barrier

Atomic smart pointers

experimental::atomic_shared_ptr

experimental::atomic_weak_ptr

std::experimental::atomic_weak_ptr

atomic_weak_ptr::atomic_weak_ptr

atomic_weak_ptr::operator=

atomic_weak_ptr::is_lock_free

atomic_weak_ptr::store

atomic_weak_ptr::load

atomic_weak_ptr::operator weak_ptr<T>

atomic_weak_ptr::exchange

atomic_weak_ptr::compare_exchange_weakatomic_weak_ptr::compare_exchange_strong

void store( weak_ptr<T> desired, std::memory_order order = std::memory_order_seq_cst ) noexcept;

Atomically replaces the current value with desired. Memory is affected according to the value of order.

order must be one of std::memory_order_relaxed, std::memory_order_release or std::memory_order_seq_cst. Otherwise the behavior is undefined.

Parameters

desired	-	the weak_ptr to store into the atomic variable
order	-	memory order constraints to enforce

Return value

(none)

Remarks

All changes to the atomic_weak_ptr object itself, and all associated use_count increments, are guaranteed to be performed atomically. Associated use_count decrements take place after the atomic operation, but are not required to be part of it. Any associated destruction or deallocation operations take place after the atomic operation and are not part of it.

See also

operator=

stores a value into an atomic_weak_ptr object (public member function)

std::atomic_is_lock_free(std::shared_ptr)std::atomic_load(std::shared_ptr)std::atomic_load_explicit(std::shared_ptr)std::atomic_store(std::shared_ptr)std::atomic_store_explicit(std::shared_ptr)std::atomic_exchange(std::shared_ptr)std::atomic_exchange_explicit(std::shared_ptr)std::atomic_compare_exchange_weak(std::shared_ptr)std::atomic_compare_exchange_strong(std::shared_ptr)std::atomic_compare_exchange_weak_explicit(std::shared_ptr)std::atomic_compare_exchange_strong_explicit(std::shared_ptr) (deprecated in C++20)

specializes atomic operations for std::shared_ptr (function template)