====== C - C++ Threads - Protected access to shared data or shared resources - Atomic Read & Write ======

Since C++ 11.  Also called lockless. 

Atomic ensures no races are to be expected while accessing a variable.

<WRAP info>
**NOTE:**  The syntax can result in a very compact code, which may not be obvious that it actually involves the overhead of atomic operations.

For instance:

<code cpp>
some_variable++
</code>

The implementation is strongly dependent on the CPU architecture and its support.

</WRAP>

----

[[C:C++ Threads:Protected access to shared data or shared resources:Atomic Read & Write:Basic Example|Basic Example]]

[[C:C++ Threads:Protected access to shared data or shared resources:Atomic Read & Write:Class Example|Class Example]]

----