1	Functions
2	Functions Contents Global Functions Member Functions Remember Functions Callable Interface Adaptors Currying Cloning Any Function
3	What is a Thread? A thread is the path traced by a function as it runs C++ supports several kinds of functions Global Function Direct Member Function Indirect Member Function How can we “thread” them?
4	Global C Function A global C function has no implicit object How can we “thread” a global C function?
5	Global C++ Function A global C++ function has no implicit object How can we “thread” a global C++ function?
6	Member function A member function has a this object How can we “thread” a member function?
7	Remember function A member function can be called indirectly How can we “thread” a remember function?
8	Callable Interface To make progress we need an interface All functions are callable
9	Callable Global Function An example of the Adapter pattern
10	Callable Global C Function Example of adapting a global C function
11	Currying Arguments and return values can be curried
12	Callable Global C++ Function Example of adapting a global C++ function
13	Callable Member Function Another example of the Adapter pattern
14	Callable Member Function In use
15	Function Lifetime A threaded function has lifetime constraints “function” must persist beyond scope of invoker
16	Cloning Make the callable functions... Polymorphically copyable Polymorphically destructable
17	Callable Global Function Again This time with cloneability
18	Callable Member Function Again This time with cloneability
19	Any Function Now we can create a function abstraction Easy to use, ready to be threaded
20	Null Object Pattern Simplifies implementation...
21	Default Constructor Functions can be “null”
22	Argument Constructor Clones the callable parameter
23	Copy Constructor Clones the function parameter
24	Destructor Deletes the callable body
25	Copy Assignment Operator Copy Before Release idiom
26	Function Call Operator Common C++ idiom