How deeply does C++ Concurrency in Action, Second Edition cover std::memory_order?

Lists six values and their permitted operation categories, while deferring the values’ precise semantics.

Std::memory_order

As explained in C++ Concurrency in Action, Second Edition

`std::memory_order` is a C++ standard library enumeration whose values specify memory-ordering constraints for atomic operations.

`std::memory_order` provides values for specifying the memory-ordering semantics of atomic operations. If no value is supplied, the operation uses `std::memory_order_seq_cst`, the strongest ordering. The precise semantics of the values require further study. section 5.2.1

The operation category determines which values are permitted:

Stores: `relaxed`, `release`, or `seq_cst`. section 5.2.1
Loads: `relaxed`, `consume`, `acquire`, or `seq_cst`. section 5.2.1
Read-modify-write operations: `relaxed`, `consume`, `acquire`, `release`, `acq_rel`, or `seq_cst`. section 5.2.1

How C++ Concurrency in Action, Second Edition covers it

Cover of C++ Concurrency in Action, Second Edition

liveBook manning.com

Read C++ Concurrency in Action, Second Edition on liveBook Get the book at manning.com

Related concepts

atomic typeconfigures · An atomic type is a type whose supported accesses and operations are indivisible with respect to concurrent execution and provide defined synchronization semantics.
memory orderingimplements · Memory ordering is the set of rules governing the permitted ordering and visibility of memory operations across concurrent execution contexts.
std::memory_order_releasehas part · A C++ memory-order value that gives an atomic store release semantics, making preceding operations visible to a thread that performs a matching acquire operation.

This explainer was generated by Manning's knowledge graph from the text of C++ Concurrency in Action, Second Edition. The section links point to the parts of the book it draws on.