Question about iteger literals

[bearophile via Digitalmars-d-learn]

Uranuz:

> Another stupid question. Using this logic substraction for two 
> uint values should return int too, because it can produce 
> negative result. Am I right or not?

There are no stupid questions, there are only some stupid answers.

Generally uint - uint generates a result with a [-4_294_967_295, 
4__294_967_295] range, that can't fit in an integer.

I think D here makes an exception to its rule, to avoid too many 
casts. Because too many casts make the code even less safe than 
breaking the range assignments rules.

Bye,
bearophile