C++| en.cppreference.com
Creates and initializes objects with dynamic storage duration, that is, objects whose lifetime is not necessarily limited by the scope in which they were created.| en.cppreference.com
C++| en.cppreference.com
Defined in header <atomic>| en.cppreference.com
The inline specifier, when used in a function's decl-specifier-seq, declares the function to be an inline function.| en.cppreference.com