The available function specifiers for
function definitions are:
- inline, which instructs the compiler to expand a function definition at the point of a function call.
explicit,
which can only be used for member functions of classes, and is described
in Explicit conversion constructors (C++ only)
_Noreturn, which indicates that a function
does not return to its caller.
- virtual,
which can only be used for member functions of classes, and is described
in Virtual functions (C++ only)