--[test27.d]--
typedef fn function() fn;

fn foo() { return &foo; }

void main()
{
	fn p = foo();
	p();
}

C:\Library\D\src\temp>dmd test27 -g -debug -unittest

C:\Library\D\src\temp>

The compiler exits with code -1073741819, prints nothing, produces no files etc.

Regan

Regan Heath wrote:

| --[test27.d]--
| typedef fn function() fn;
|
| fn foo() { return &foo; }
|
| void main()
| {
|     fn p = foo();
|     p();
| }
|
| C:\Library\D\src\temp>dmd test27 -g -debug -unittest
|
| C:\Library\D\src\temp>
|
| The compiler exits with code -1073741819, prints nothing, produces no
| files etc.
|
| Regan

Added to DStress as
http://dstress.kuehne.cn/run/debug_info_01.d
http://dstress.kuehne.cn/run/debug_info_02.d

Thomas

"Regan Heath" <regan@netwin.co.nz> wrote in message news:opsn61vgpg23k2f5@nrage.netwin.co.nz...
> --[test27.d]--
> typedef fn function() fn;

The circular reference to fn is what causes the crash. I've fixed the compiler to now issue a diagnostic error for it.

On Tue, 5 Apr 2005 15:42:56 -0700, Walter <newshound@digitalmars.com> wrote:
> "Regan Heath" <regan@netwin.co.nz> wrote in message
> news:opsn61vgpg23k2f5@nrage.netwin.co.nz...
>> --[test27.d]--
>> typedef fn function() fn;
>
> The circular reference to fn is what causes the crash. I've fixed the
> compiler to now issue a diagnostic error for it.

Ok. So how does one define/declare a function that returns a function?

Regan

"Regan Heath" <regan@netwin.co.nz> wrote in message news:opsor7y7x523k2f5@nrage.netwin.co.nz...
> On Tue, 5 Apr 2005 15:42:56 -0700, Walter <newshound@digitalmars.com> wrote:
> > "Regan Heath" <regan@netwin.co.nz> wrote in message news:opsn61vgpg23k2f5@nrage.netwin.co.nz...
> >> --[test27.d]--
> >> typedef fn function() fn;
> >
> > The circular reference to fn is what causes the crash. I've fixed the compiler to now issue a diagnostic error for it.
>
> Ok. So how does one define/declare a function that returns a function?

It can return a function of a different type. It just can't return a function of the same type. The only way to make the latter work is to use a cast, i.e. declare the function as returning void* and casting the result.

Regan Heath wrote:
> On Tue, 5 Apr 2005 15:42:56 -0700, Walter <newshound@digitalmars.com>  wrote:
> 
>> "Regan Heath" <regan@netwin.co.nz> wrote in message
>> news:opsn61vgpg23k2f5@nrage.netwin.co.nz...
>>
>>> --[test27.d]--
>>> typedef fn function() fn;
>>
>> The circular reference to fn is what causes the crash. I've fixed the
>> compiler to now issue a diagnostic error for it.
> 
> Ok. So how does one define/declare a function that returns a function?

So you can do stuff like

fn qwert;
qwert = qwert();

You've got me wondering how this could be used in practice....

Stewart.

-- 
My e-mail is valid but not my primary mailbox.  Please keep replies on the 'group where everyone may benefit.

On Wed, 06 Apr 2005 17:00:38 +0100, Stewart Gordon <smjg_1998@yahoo.com> wrote:
> Regan Heath wrote:
>> On Tue, 5 Apr 2005 15:42:56 -0700, Walter <newshound@digitalmars.com>  wrote:
>>
>>> "Regan Heath" <regan@netwin.co.nz> wrote in message
>>> news:opsn61vgpg23k2f5@nrage.netwin.co.nz...
>>>
>>>> --[test27.d]--
>>>> typedef fn function() fn;
>>>
>>> The circular reference to fn is what causes the crash. I've fixed the
>>> compiler to now issue a diagnostic error for it.
>>  Ok. So how does one define/declare a function that returns a function?
>
> So you can do stuff like
>
> fn qwert;
> qwert = qwert();
>
> You've got me wondering how this could be used in practice....

Good question.. no idea :)

I found the bug when trying to help here..
http://www.digitalmars.com/drn-bin/wwwnews?digitalmars.D/20080

Perhaps ask Brian what he was trying to do with it.

Regan