www.digitalmars.com/d/changelog.html

In article <b66c01$155t$1@digitaldaemon.com>, Walter says...
>
>
>www.digitalmars.com/d/changelog.html
>
>
please add "http://" in future announce posts to save us from cut and paste (at least with MS IE on Win98

thank you

Here's some malicous D code, that crashes DMD 0.61 and causes a linker error:

void func()
{
   void* ptr;
   int[5] array;

   void ptr*;
   /* BUG: compiler crashes after saying
      semicolon expected, not '*'
      expression expected, not ';'
   */

   if (array==ptr[]) // BUG: should not compile
   {
   }
}


Farmer.

Walter wrote:
> www.digitalmars.com/d/changelog.html
> 
> 
 Hallo,

this code causes dmd 0.61 to crash:

template TList(T)
{
	class Node
	{
	 Node prev;
	 Node next;
	 T Value;
	}
	class List
	{
		Node m_first = null;
		Node m_last = null;
		void AddFront(T _Value)
		{
			Node cur = new Node;
			with (cur)
			{
				next = m_first;
				prev = null;
				Value = _Value;
				if (next != null) next.prev = cur;
			}
			m_first = null;
			if (m_last == null) m_last = cur;
		}
	}
}

void main(char[][] argv)
{
 alias instance TList(uint).List UIntList;
 alias instance TList(uint).Node UIntNode;
 UIntList list;
 UIntNode node;
 for (int i = 1; i <= 10; i++) list.AddFront(i);
}

Stephan Wienczny wrote:
> 
> Walter wrote:
> > www.digitalmars.com/d/changelog.html
> >
> >
>   Hallo,
> 
> this code causes dmd 0.61 to crash:
> 
> template TList(T)
> {
>         class Node
>         {
>          Node prev;
>          Node next;
>          T Value;
>         }
>         class List
>         {
>                 Node m_first = null;
>                 Node m_last = null;
>                 void AddFront(T _Value)
>                 {
>                         Node cur = new Node;
>                         with (cur)
>                         {
>                                 next = m_first;
>                                 prev = null;
>                                 Value = _Value;
>                                 if (next != null) next.prev = cur;
>                         }
>                         m_first = null;
>                         if (m_last == null) m_last = cur;
>                 }
>         }
> }
> 
> void main(char[][] argv)
> {
>   alias instance TList(uint).List UIntList;
>   alias instance TList(uint).Node UIntNode;
>   UIntList list;
>   UIntNode node;
>   for (int i = 1; i <= 10; i++) list.AddFront(i);
> }

Der Code
   UIntList list;
erzeugt noch kein gültiges Objekt, dessen Methoden du mit
   list.AddFront(i);
verwenden könntest.

Siehe dagegen oben:
   Node cur = new Node;

D ist da ganz gleich wie z. B. Java.

--
Helmut Leitner    leitner@hls.via.at Graz, Austria   www.hls-software.com

Helmut Leitner wrote:
> 
> Stephan Wienczny wrote:
> 
>>Walter wrote:
>>
>>>www.digitalmars.com/d/changelog.html
>>>
>>>
>>
>>  Hallo,
>>
>>this code causes dmd 0.61 to crash:
>>
>>template TList(T)
>>{
>>        class Node
>>        {
>>         Node prev;
>>         Node next;
>>         T Value;
>>        }
>>        class List
>>        {
>>                Node m_first = null;
>>                Node m_last = null;
>>                void AddFront(T _Value)
>>                {
>>                        Node cur = new Node;
>>                        with (cur)
>>                        {
>>                                next = m_first;
>>                                prev = null;
>>                                Value = _Value;
>>                                if (next != null) next.prev = cur;
>>                        }
>>                        m_first = null;
>>                        if (m_last == null) m_last = cur;
>>                }
>>        }
>>}
>>
>>void main(char[][] argv)
>>{
>>  alias instance TList(uint).List UIntList;
>>  alias instance TList(uint).Node UIntNode;
>>  UIntList list;
>>  UIntNode node;
>>  for (int i = 1; i <= 10; i++) list.AddFront(i);
>>}
> 
> 
> Der Code
>    UIntList list;
> erzeugt noch kein gültiges Objekt, dessen Methoden du mit
>    list.AddFront(i);
> verwenden könntest.
> 
> Siehe dagegen oben:
>    Node cur = new Node;
> 
> D ist da ganz gleich wie z. B. Java.
> 
> --
> Helmut Leitner    leitner@hls.via.at   Graz, Austria   www.hls-software.com

Das ist als D-Newbie gut zu wissen! Das Problem ist aber, dass der Compiler ohne Fehlermeldung abschmiert. Das sollte nicht passieren...

Cu Stephan

I have it fixed now. In the meantime, you can work around it by putting the alias declarations at module rather than function scope.