Copy constructor hides default constructor

[Aire]

Will defining a copy constructor also make the default constructor not
available anymore, until a default constructor is explicitly provided?
Thanks!

 

[Jumbo]

Will defining a copy constructor also make the default constructor not
available anymore, until a default constructor is explicitly provided?
Thanks!

Yes I think it does.
If you provide a copy constructor then you'll need to provide a default
constructor.

Be carefull when using the phrase 'constructor explicitly provided' as this
could be confused with a 'constructor using the explicit keyword'.

 

[John Harrison]

Will defining a copy constructor also make the default constructor not
available anymore, until a default constructor is explicitly provided?
Thanks!

Yes, implicit default constructor only generated if no other constructors
are defined. This is for compatibility with C struct's.

John

 

[Mike Wahler]

Yes I think it does.
If you provide a copy constructor

Clarification:

*any* constructor

then you'll need to provide a default
constructor.

Only if one is needed.

-Mike