C++: How many type of constructors supported by the latest C++ standard i.e. C++17 ?

Question

Input iterators, Output iterator, Forward iterator, Random access iterators and Bidirectional iterators.
Can someone please explain the differences ?

Answer 1

I am aware of following types of constructors.
- default constructor (provided by compiler if it is not defined)
- copy constructor
- move constructor
- copy assignment
- move assignment