Modern C++ Programming Cookbook

How to do it...

Use the following casts to perform type conversions:

• Use static_cast to perform type casting of non-polymorphic types, including casting of integers to enumerations, from floating point to integral values or from a pointer type to another pointer type, such as from a base class to a derived class (downcasting) or from a derived class to a base class (upcasting), but without any runtime checks:

        enum options {one = 1, two, three};        int value = 1;        options op = static_cast<options>(value);        int x = 42, y = 13;        double d = static_cast<double>(x) / y;        int n = static_cast<int>(d);

• Use dynamic_cast to perform type casting of pointers or references of polymorphic types from a base class to a derived class or the other way around. ...