Does D have too many features?

[SomeDude]

On Tuesday, 1 May 2012 at 02:26:53 UTC, Alex Rønne Petersen 
wrote:
> On 01-05-2012 03:41, Jesse Phillips wrote:
>>
>> Complexity of the operation. in on an array is not nearly the 
>> same as
>> with an associative array.
>
> I know, but it's very intuitive still; see Python.

And that's why it's somewhat dangerous. Because it's so easy to 
use, someone that doesn't pay enough attention may overlook the 
fact that he is not using the right data structure. If he often 
has to do that more than once, he is using the wrong tool for the 
job. I agree it would be syntaxically nice, but I worry giving 
this syntactic sugar for what's a for loop with lots of 
comparisons isn't such a good idea. And the comparisons 
themselves are subject to caution. If for instance it's an array 
of floats, or some custom objects, it's very unlikely that you 
are going to compare bit by bit. So basically, this would be 
useful only for integers and chars.