Major performance problem with std.array.front()

[Walter Bright]

On 3/6/2014 6:54 PM, bearophile wrote:
> Walter Bright:
>
>> systems/native programming languages must not hide the underlying
>> representation (I make similar arguments about proposals to make ints issue
>> errors on overflow, etc.).
>
> But it's good to have in Phobos a compiler-intrinsics-based efficient overflow
> detection on a user-defined struct type that behaves like built-in ints in all
> other aspects.

Yes, so that the user selects it, rather than having it wired in everywhere and 
the user has to figure out how to defeat it.