Returns: An argument forwarding call wrapper g ([func.require]).

A program that attempts to invoke a volatile-qualified g is ill-formed.

When g is not volatile-qualified, invocation of g(, , …, ) is expression-equivalent ([defns.expression.equivalent]) to INVOKE(static_cast<>(), static_cast<>(), static_cast<>(), …, static_cast<>()) for the first overload, and INVOKE<R>(static_cast<>(), static_cast<>(), static_cast<>(), …, static_cast<>()) for the second overload, where the values and types of the target argument and of the bound arguments , , …, are determined as specified below.