绑定：建立联系；
分发：作出选择。
https://en.wikipedia.org/wiki/Dynamic_dispatch
https://en.wikipedia.org/wiki/Late_binding
Dynamic dispatch is different from late binding (also known as dynamic binding). In the context of selecting an operation, binding refers to the process of associating a name with an operation. Dispatching refers to choosing an implementation for the operation after you have decided which operation a name refers to. With dynamic dispatch, the name may be bound to a polymorphic operation at compile time, but the implementation not be chosen until runtime (this is how dynamic dispatch works in C++). However, late binding does imply dynamic dispatching since you cannot choose which implementation of a polymorphic operation to select until you have selected the operation that the name refers to.
Binding refers to the process of associating a name with an operation.
the main thing here is function parameters these decides which function to call at runtime
Dispatching refers to choosing an implementation for the operation after you have decided which operation a name refers to.
dispatch control to that according to parameter match
http://en.wikipedia.org/wiki/Dynamic_dispatch
hope this help you
In C++, both are same.
In C++, there are two kinds of binding:
- static binding — which is done at compile-time.
- dynamic binding — which is done at runtime.
Dynamic binding, since it is done at runtime, is also referred to as late binding and static binding is sometime referred to as early binding.
Using dynamic-binding, C++ supports runtime-polymorphism through virtual functions (or function pointers), and using static-binding, all other functions calls are resolved.
The link itself explained the difference:
Dynamic dispatch is different from late binding (also known as dynamic binding). In the context of selecting an operation, binding refers to the process of associating a name with an operation. Dispatching refers to choosing an implementation for the operation after you have decided which operation a name refers to.
and
With dynamic dispatch, the name may be bound to a polymorphic operation at compile time, but the implementation not be chosen until runtime (this is how dynamic dispatch works in C++). However, late binding does imply dynamic dispatching since you cannot choose which implementation of a polymorphic operation to select until you have selected the operation that the name refers to.
But they're mostly equal in C++ you can do a dynamic dispatch by virtual functions and vtables.
C++ uses early binding and offers both dynamic and static dispatch. The default form of dispatch is static. To get dynamic dispatch you must declare a method as virtual.