Is this a bug or I misunderstand?

[Andrew Pinski]

This is common mistake for beginners of c++ and some advance c++ people.
The problem is the statement `A b();' is not a statement declaring a
variable with type of b and using the default constructor but rather
declaring a function that takes no variables and returns an `A' object.


Thanks,
Andrew Pinski


On Monday, June 17, 2002, at 01:55 , Maggie Mitchell wrote:

> //The codes begin
> #include <stdio.h>
> class A {
> public:
>    A(int i=0)
>        {
>        printf("hello\n");
>        }
> };
> int main()
> {
> printf("begin\n");
> A a;
> printf("----\n");
> A b();
> printf("end\n");
> return 0;
> }
> //codes end
> I think the result should be
> begin
> hello
> ------
> hello
> end
>
> but the result  is
> are
> begin
> hello
> -----
> end
>
> why?Is It a bug of g++ or I misunderstand the behaviour of constructor?
>
> Regards
>   Maggie
>
>
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