Re: [sv-bc] What type of return stmt allowed in class constructor?

Surya Pratik Saha wrote:
> Hi Gord,
> So are you saying only 'return;' is allowed, or no return statement is 
> allowed? Please confirm.

A "return;" should be allowed -- I don't see any reason not to as that is
also allowed from a void function and task.

Gord.

> 
> Regards
> Surya
> 
> 
> 
> -------- Original Message  --------
> Subject: Re:[sv-bc] What type of return stmt allowed in class constructor?
> From: Gordon Vreugdenhil <gordonv@model.com>
> To: Surya Pratik Saha <spsaha@cal.interrasystems.com>
> Cc: sv-ec@eda.org, sv-bc@eda.org
> Date: Thursday, January 03, 2008 8:46:15 PM
>> No return value is permitted from the user code -- the return value is
>> determined by the implementation.
>>
>> I agree that it isn't clear from the LRM but that is the way that
>> things must currently behave.  At some point it would be conceivable
>> to allow C++ style user defined memory allocators and then allow
>> user-determined return values but we're a long way from having
>> enough language infrastructure to allow that.
>>
>> Gord.
>>
>> Surya Pratik Saha wrote:
>>> Hi,
>>> As per LRM:
>>> *The new operation is defined as a function with no return type, and 
>>> like any other function, it must be non-blocking.
>>> Even though new does not specify a return type, the left-hand side of 
>>> the assignment determines
>>> the return type.*
>>>
>>> It is not clear from the text, which type of return statement is 
>>> allowed. Consider the following cases:
>>> program class20;
>>>
>>> class A;
>>> bit b;
>>> reg r;
>>>
>>> A a;
>>> function new(bit i, reg j);
>>> b = i;
>>> r = j;
>>> return a;
>>> endfunction
>>>
>>> endclass
>>>
>>> A a;
>>>
>>> endprogram
>>> Is the above case valid.
>>> Also what will happen if only 'return;' is used?
>>>
>>> -- 
>>> Regards
>>> Surya
>>>
>>>
>>> -- 
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>>
> 
> 
> 
> 

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Gordon Vreugdenhil                                503-685-0808
Model Technology (Mentor Graphics)                gordonv@model.com


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