Types soup with enum and bool

[Maxim Fomin]

On Tuesday, 29 October 2013 at 18:23:03 UTC, bearophile wrote:
> Ali Çehreli:
>
>> >> enum Foo { A, B, C }
>> >> void main() {
>> >>    bool[5] bools;
>> >>    auto b = bools[2] != Foo.C;
>> >>    bools[2] = Foo.A;
>> >> }
>>...
>> There was a long discussion about that. Walter was happy that 
>> bool was a integer type. Many of us had objections:
>
> My problem is mostly with enums. I don't remember Walter 
> explaining the rationale of the D enum conversion design. I 
> prefer the C++11 enums.
>
> Bye,
> bearophile


Bools being integer types is reason of your problem with enums. 
Relevant lines from your code are translated to:

bool b = 0 != 2;
bools[2] = 0;

taking into account that 'bool' is integer type having capacity 
to represent values 0 and 1.