Is this code legal in ISO C++?

So I'm trying to implement function parameters which can be uninitialized. Here is the code which I have written. My question is if it's legal by the ISO C++ standard (version 14 if possible).

#include <iostream>
#include <typeinfo>

using namespace std;

template<typename type>

struct nzeroinittmpliteral
{
    nzeroinittmpliteral() { }    
    nzeroinittmpliteral(type arg) { d = arg; }    
    //nzeroinittmpliteral(const nzeroinittmpliteral &) = delete;    
    operator type () & { return d; }   
    operator type () && { return d; }  
    type d;
} ;

void func(bool bIsPointerValid, nzeroinittmpliteral<int *> pVar = {})
{
    if(bIsPointerValid)
    {
        cout << *pVar << endl;
    }
    else
    {
        pVar = new int;    
        *pVar = 8;    
        cout << *pVar << endl;    
        delete pVar;
    }
}

int main()
{
    func(true, { (int *)&(const int &)int{9} } );    
    func(false);
}