Exercise 2-2

Rewrite boost::polymorphic_downcast. More...

Files
file	c++20/exercise-2-2.hpp
	Solution to Exercise 2-2 (C++20).
file	exercise-2-2.hpp
	Solution to Exercise 2-2.

Namespaces
namespace	exercise_2_2
	Encapsulate solution for Exercise 2-2.
namespace	exercise_2_2::cpp20
	Encapsulate solution for Exercise 2-2 (C++20).

Functions
static void	anonymous_namespace{chapter-2.cpp}::test_exercise_2_2 ()
	Tests for Exercise 2-2.

Detailed Description

Rewrite boost::polymorphic_downcast.

2-2. The boost::polymorphic_downcast function template implements a checked
     version of static_cast intended for downcasting pointers to polymorphic
     objects:

     In released software, the assertion disappears and polymorphic_downcast
     can be as efficient as a simple static_cast.  Use the type traits
     facilities to write an implementation of the template that allows both
     pointer and reference arguments.

Function Documentation

test_exercise_2_2()

static void anonymous_namespace{chapter-2.cpp}::test_exercise_2_2 ( )

static

Tests for Exercise 2-2.

Definition at line 142 of file chapter-2.cpp.