• Don Clugston <dac nospam.com.au> Nov 28 2005
• "John C" <johnch_atms hotmail.com> Nov 28 2005
• Don Clugston <dac nospam.com.au> Nov 28 2005
• Thomas Kuehne <thomas-dloop kuehne.cn> Dec 04 2005

Don Clugston <dac nospam.com.au> writes:

Seems to be an order-of-evaluation bug.
Fails to compile on DMD 0.140, Windows.

--------------
template cat(int n)
{
   const int dog = n;
}

const char [] bird = "canary";

const int sheep = cat!(bird.length).dog;

int main() { return 0; }
--------------
bug.d(9): no property 'length' for type 'char[]'
----------------

"John C" <johnch_atms hotmail.com> writes:

"Don Clugston" <dac nospam.com.au> wrote in message 
news:dmef15$1nll$1 digitaldaemon.com...
 Seems to be an order-of-evaluation bug.
 Fails to compile on DMD 0.140, Windows.

 --------------
 template cat(int n)
 {
   const int dog = n;
 }

 const char [] bird = "canary";

 const int sheep = cat!(bird.length).dog;


Works if you cast bird to char[]:

    const int sheep = cat!((cast(char[])bird).length).dog;

printf("%d\n", sheep); // prints '6'

 int main() { return 0; }
 --------------
 bug.d(9): no property 'length' for type 'char[]'
 ---------------- 

Don Clugston <dac nospam.com.au> writes:

John C wrote:
 "Don Clugston" <dac nospam.com.au> wrote in message 
 news:dmef15$1nll$1 digitaldaemon.com...
 
Seems to be an order-of-evaluation bug.
Fails to compile on DMD 0.140, Windows.

--------------
template cat(int n)
{
  const int dog = n;
}

const char [] bird = "canary";

const int sheep = cat!(bird.length).dog;


 
 Works if you cast bird to char[]:
 
     const int sheep = cat!((cast(char[])bird).length).dog;
 
 printf("%d\n", sheep); // prints '6'


Indeed, many minor changes will let it compile, eg

const int sheep = cat!((""~ bird).length).dog;

and

const int pig = bird.length;
const int sheep = cat!(pig).dog;

(I got sick of a,b,c in bug reports, from now on I'll use animals :-)
Of course insects would be more appropriate).


 
 
int main() { return 0; }
--------------
bug.d(9): no property 'length' for type 'char[]'
---------------- 


 
 

Thomas Kuehne <thomas-dloop kuehne.cn> writes:

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Don Clugston schrieb am 2005-11-28:
 Seems to be an order-of-evaluation bug.
 Fails to compile on DMD 0.140, Windows.

 --------------
 template cat(int n)
 {
    const int dog = n;
 }

 const char [] bird = "canary";

 const int sheep = cat!(bird.length).dog;

 int main() { return 0; }
 --------------
 bug.d(9): no property 'length' for type 'char[]'
 ----------------


Added to DStress as
http://dstress.kuehne.cn/run/t/template_22.d
http://dstress.kuehne.cn/run/t/template_class_15.d
http://dstress.kuehne.cn/run/t/template_struct_06.d

Thomas


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