How do I use metaprogramming to reduce boilerplate in C++?

#include <iostream>
#include <type_traits>

// Metafunction to remove pointer, const, and reference
template<typename T>
struct TypeCleaner {
    using type = typename std::remove_reference<typename std::remove_pointer<std::remove_const<T>::type>::type>::type;
};

// Example usage
template<typename T>
void printTypeName(T var) {
    using CleanedType = typename TypeCleaner<T>::type;
    std::cout << "Type: " << typeid(CleanedType).name() << std::endl;
}

int main() {
    const int* ptr = nullptr;
    printTypeName(ptr); // Should output: Type: int
    return 0;
}