overload static_cast

gistfile.cpp

#include <iostream>
#include <vector>
#include <cstdlib>

struct test {
};

struct test_virt : public test {
    virtual void foo(){}
};

struct test_a : public test_virt {
    virtual void foo(){}
};

struct test_b : public test_virt {
    virtual void foo(){}
};

struct test_virt_virt : public virtual test_b, public virtual test_a {
    virtual void foo(){

    }
};

template<typename Res, typename Obj>
Res secure_cast(Obj o){
    return (Res)o;
}

template<typename Res, typename Obj>
Res secure_cast(Obj* o){
    return dynamic_cast<Res>(o);
}

#define static_cast secure_cast

int main(){
    float test_float = 10;
    double test_double = static_cast<double>(test_float);
    std::cout << test_double <<std::endl;
    test_virt* t = new test_b();
    std::cout << (void*)static_cast<test_b*>(t) << std::endl;
    std::cout << (void*)static_cast<test_a*>(t) << std::endl;
    return 0;
}