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std::atomic and Memory Orders
Last Updated: February 1, 2026
Medium Priority
22 min read
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What is std::atomic?
Type Requirements
Core Atomic Operations
The Six Memory Orders
Memory Order Comparison
Implementing a Spinlock
std::atomic_flag
std::atomic_ref (C++20)
Lock-Free Queue (SPSC)
Performance Considerations
When NOT to Use Atomics
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