How to make the statement shorter:

auto ptr = std::shared_ptr<CPoint>(new CPoint(x, y));

Please notice the CPoint appears twice. Can it be shorter?

like:

auto ptr = XXXX<CPoint>(x, y);

XXXX is a macro or anything. It should apply to any constructor with any parameters.

auto ptrA = XXXX<ClassA>(); // a shared_ptr to new ClassA()
auto ptrB = XXXX<ClassB>(a, b, c); // a shared_ptr to new ClassB(a, b, c)