forum.dlang.org is now using DCaptcha

[Mike via Digitalmars-d-announce]

On Wednesday, 3 December 2014 at 19:42:39 UTC, Ary Borenszweig 
wrote:
> On 12/2/14, 6:41 PM, Vladimir Panteleev wrote:
>
>> Enter DCaptcha
>
> I think this could work with just two or three variants of a 
> question. Always ask what's the return value of the function.
>
> 1. int foo() { return 8 % 3; }
>
> I don't think non-programmers know what that '%' symbol is, but 
> programmers of any language would recognize this.
>
> 2. int foo() { int x = 8; x++; x++; return x; }
>
> I don't think non-programmers would guess ++ is increment, but 
> programmers most probably know it.
>
> 3. bool foo() { return 42 != 30 };
>
> I don't think non-programmers know what "!=" is.

I had to maintain a technical forum last year that was getting 
spammed like crazy.  I added the question "how many bits are in a 
byte?", and the spam vanished.  Based on that experience, I think 
the bar can be set very low.

I prefer something like the examples above.  Honestly, I don't 
know what the names of many syntax features are, but I usually 
know how to use and interpret them.  But, one positive side 
effect of this is that if I ever do get challenged with a "what 
is the name of this feature?" question, I will finally be 
motivated to go look it up.

Mike