FunctionObject

C++ concepts: FunctionObject

A FunctionObject type is the type of an object that can be used on the left of the function call operator.

Requirements

The type T satisfies FunctionObject if.

• The type T satisfies std::is_object, and

Given.

• f, a value of type T or const T
• args, suitable argument list, which may be empty

The following expressions must be valid:

Notes

Functions and references to functions are not fu