RE: [Dev-C++] Constructors for classes

[Ioannis V. <iv...@em...>]

> -----Original Message-----
> From: dev...@li...=20
> [mailto:dev...@li...] On Behalf=20
> Of Socha, David F
> Sent: Saturday, June 07, 2003 2:35 PM
> To: Dev C++ Mailing List
> Subject: [Dev-C++] Constructors for classes
>=20
> 		node* root =3D new node(5);
>=20
> that should alocate the memory, call the constructor, and set=20
> the data portion of the node to 5.
> the constructor that is called is the one that will assign a=20
> value to data not the default constructor that does nothing, right?


No, it is not the default constructor.


There are two types of "default constructors". The default constuctor =
and
the default copy constructor. If you define them, the defined ones get
called. There is no other type of "default constructor" so if you had =
not
defined the one getting the int, you would get an error.

The other default thing is the default assign operator (that is =3D). =
Both the
default copy constructor and the default assign operator copy the exact =
data
member values.

When defined, the defined ones get called.






Ioannis Vranos
=20
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