Code below outputs '1' instead '0'.

'bar' value overrides 'foo' value, when in there are no ctor in class 'B'.
If uncomment B ctor, output is '0', as expected.

<code>
class A
{
  this() {}
}

class B: A
{
  int foo;
//  this() {}
}

class C: B
{
  int bar;

  this()
  {
    foo = 0;
    bar = 1;
  }
}

void main()
{
  C c = new C();
  printf("%d", c.foo); // 1, expecting 0
}
</code>

On Tue, 21 Dec 2004 00:10:47 +1000, Ilya Zaitseff <sark7@mail333.com> wrote:

> Code below outputs '1' instead '0'.
>
> 'bar' value overrides 'foo' value, when in there are no ctor in class 'B'.
> If uncomment B ctor, output is '0', as expected.
>
> <code>
> class A
> {
>    this() {}
> }
>
> class B: A
> {
>    int foo;
> //  this() {}
> }
>
> class C: B
> {
>    int bar;
>
>    this()
>    {
>      foo = 0;
>      bar = 1;
>    }
> }
>
> void main()
> {
>    C c = new C();
>    printf("%d", c.foo); // 1, expecting 0
> }
> </code>

dmd 0.109 on XP outputs 0. What version do you use?

-- 
"Unhappy Microsoft customers have a funny way of becoming Linux,
Salesforce.com and Oracle customers." - www.microsoft-watch.com:
"The Year in Review: Microsoft Opens Up"
--
"I plan on at least one critical patch every month, and I haven't been disappointed."
- Adam Hansen, manager of security at Sonnenschein Nath & Rosenthal LLP
(Quote from http://www.eweek.com/article2/0,1759,1736104,00.asp)
--
"It's been a challenge to "reteach or retrain" Web users to pay for content, said Pizey"
-Wired website: "The Incredible Shrinking Comic"

On Tue, 21 Dec 2004 19:36:19 +1300, Simon Buchan <currently@no.where> wrote:

> On Tue, 21 Dec 2004 00:10:47 +1000, Ilya Zaitseff <sark7@mail333.com> wrote:
>
>> Code below outputs '1' instead '0'.
>>
>> 'bar' value overrides 'foo' value, when in there are no ctor in class 'B'.
>> If uncomment B ctor, output is '0', as expected.
>>
>> <code>
>> class A
>> {
>>    this() {}
>> }
>>
>> class B: A
>> {
>>    int foo;
>> //  this() {}
>> }
>>
>> class C: B
>> {
>>    int bar;
>>
>>    this()
>>    {
>>      foo = 0;
>>      bar = 1;
>>    }
>> }
>>
>> void main()
>> {
>>    C c = new C();
>>    printf("%d", c.foo); // 1, expecting 0
>> }
>> </code>
>
> dmd 0.109 on XP outputs 0. What version do you use?
>

Strange, on the other machine there is no such bug.
Maybe my D installation is broken.

On Wed, 22 Dec 2004 13:27:26 +1000, Ilya Zaitseff <sark7@mail333.com> wrote:

<snip>
>
> Strange, on the other machine there is no such bug.
> Maybe my D installation is broken.

I am assusming there would have to be for it to do this... compiler version
and environment may help (If they are not identical)

Also: this may be somewhat like the eax "return" "behavior" (Its a feature,
not a bug! :D), i.e. whatever was in eax is returned from void main().
Unless this always happens with different compilations... or something...

-- 
"Unhappy Microsoft customers have a funny way of becoming Linux,
Salesforce.com and Oracle customers." - www.microsoft-watch.com:
"The Year in Review: Microsoft Opens Up"
--
"I plan on at least one critical patch every month, and I haven't been disappointed."
- Adam Hansen, manager of security at Sonnenschein Nath & Rosenthal LLP
(Quote from http://www.eweek.com/article2/0,1759,1736104,00.asp)
--
"It's been a challenge to "reteach or retrain" Web users to pay for content, said Pizey"
-Wired website: "The Incredible Shrinking Comic"

Added to DStress as http://svn.kuehne.cn/dstress/run/constructor_07.d http://svn.kuehne.cn/dstress/run/constructor_08.d

Thomas