crtp.cpp

crtp.cpp

#include <iostream>
using namespace std;

template <typename T, typename U>
struct Base
{
	void TestBase(void* ptr) //__attribute__ ((noinline))
	{
		U& ref = *reinterpret_cast<U*>(ptr);
		static_cast<T*>(this)->Test(ref);
	}
};

struct Child : public Base<Child, float>
{
	void Test(float& val)
	{
		//cout << __FUNCTION__ << " = " << val << endl;
      printf("%f", val);
	}
};



int main() {
	Child c;
	float x = 42.0f;
	c.TestBase(&x);
	return 0;
}