How to perform atomic operations on Linux that work on x86, arm, GCC and icc?

Question

Every Modern OS provides today some atomic operations:

• Windows has Interlocked* API
• FreeBSD has

Answer 1

Recent standards (from 2011) of C & C++ now specify atomic operations:

• C11: stdatomic.h
• C++11: std::atomic

Regardless, your platform or compiler may not support these newer headers & features.