Promotion of C + + static_cast

---static_cast Static type conversions

---static: compile-time

---Type conversions: conversion between normal types, void* and normal type pointers, inter-pointer conversions with inheritance (richer than dynamic type conversions)

---normal type conversions:

int a = 10; int b = 3; Requirements: float c = A/b = 3.333

1.a Change to float type

2.

3.

---conversion between void* and normal type pointers:

And I know it now. float* this type, the printed result is estimated that you can't imagine.

---transition between pointers with inheritance

There's no dynamic_cast so strict here.

1.p1 position is paired with b* position, otherwise the compilation does not pass

2. Just a pointer to the parent class--A parent class--a subclass pointer or a pointer to a subclass--subclass--the pointer to the parent class is true

3.P1 and P2 must have a new, otherwise

4. Careful use, low portability

5. Can replace dynamic_cast at a certain time

--const_cast:const pointer conversion to non-const pointer

--reinterpret_cast: This can be said to be a lawless compiler, between pointers, numbers and types of random strong, cheat the compiler, but the call is wrong or wrong

Promotion of C + + static_cast