How do I call ::std::make_shared on a class with only protected or private constructors?

Question

I have this code that doesn\'t work, but I think the intent is clear:

testmakeshared.cpp

#include 

class A {
 public:
   stat         


        

Answer 1

If you also want to enable a constuctor that takes arguments, this may help a bit.

#include 
#include 

template
struct enable_make : public S
{
    template
    enable_make(T&&... t)
        : S(std::forward(t)...)
    {
    }
};

class foo
{
public:
    static std::unique_ptr create(std::unique_ptr u, char const* s)
    {
        return std::make_unique>(std::move(u), s);
    }
protected:
    foo(std::unique_ptr u, char const* s)
    {
    }
};

void test()
{
    auto fp = foo::create(std::make_unique(3), "asdf");
}