Default vs. Implicit constructor in C++

Question

This is very trivial, but Czech language (my native) doesn\'t distinguish between implicit and default, so I am confused by some Czech translations what is the difference be

Answer 1

You seem to be confusing some of the terms. A default constructor is one which takes no parameters, an implicit call is when you directly call the constructor.

Anyway:

1) Test t1;

Default constructor.

2) Test t2();

Function declaration.

3) Test t3 = 3;

Copy initialization. Will call the conversion constructor, create a temporary Test from 3, and use the copy constructor to create t3.

4) Test t4(4);

Direct initialization. Uses the conversion constructor directly.

5) Test t5 = Test(5);

Copy initialization. Similar to 3).