What's difference between Object obj = Object() and Object obj()?

Question

I think that it has a lot of information about it but I don\'t know how this is called. I cannot understand difference between next two strings of code:

Obje         


        

Answer 1

Object obj();

declares a function, not an object! This is an instance of the "Most Vexing Parse".

Object obj = Object();

requires Object to have an accessible move constructor or copy constructor (although the compiler might end up eliding the move/copy).

Simple ways to just create an object include:

Object obj;
Object obj{};