On Friday, August 20, 2010 15:32:16 bearophile wrote:
> Jonathan M Davis:
> > Well, Andrei is definitely a fan of using D for small scripts, so arguments that something shouldn't be done because it's intended for scripting aren't going to fly with him. Personally, I find it a bit weird, but I don't really care. I probably won't code that way, but I don't mind that it's an option.
> 
> Even small scripts need to be tidy. And I don't like that stupid shortcut in a language that tries to be safe as D. Andrei is wrong here.
> 
> A problem with similar shortcuts is that they save you few chars and they look handy, but sometimes they later come back to bite your ass. Perl is a good example of this.
> 
> Bye,
> bearophile

It's essentially the same as putting an entire if statement on one line, which I'm not a fan of doing, but there are plenty of people who do.

- Jonathan M Davis

On Fri, 20 Aug 2010 20:33:43 +0000, Iain Buclaw wrote:

> == Quote from Ersin Er (ersin.er@gmail.com)'s article
>> Hi,
>> The following code compiles and outputs "1 = 1" as expected: 1 == 1 &&
>> writeln("1 = 1");
>> However, the following code fails to compile (although it should not):
>> 1 == 2 && writeln("1 = 2");
>> The error is as follows:
>> Error: integral constant must be scalar type, not void What I expect
>> that the second code should also compile and output nothing when
> executed.
>> Am I missing something?
>> Thanks.
> 
> Because you are dealing with literals here, it's best to assume the compiler will try to evaluate and compile down the code you write.
> 
> The first example you give will be optimized down to just
> 
>     writeln("1 = 1");
> 
> Whilst your second example is simply
> 
>    false;
> 
> 
> Regards

And the relevance of that to the OP's post which noted that

1 == 2 && writeln("1 = 2");

produces an error message complaining about void where a scalar is expected is what?

Also irrelevant are statements that Andrei is wrong or even has taken leave of his senses merely for accurately describing in his book a particular bit of D's semantics that he may or may not have had any role in crafting.