About std.ascii.toLower

[monarch_dodra]

On Thursday, 20 September 2012 at 16:34:22 UTC, bearophile wrote:
> monarch_dodra:
>
>> It's not, it only *operates* on ASCII, but non ascii is still 
>> a legal arg:
>
> Then maybe std.ascii.toLower needs a pre-condition that 
> constraints it to just ASCII inputs, so it's free to return a 
> char.
>
> Bye,
> bearophile

I was thinking the exact same thing right after replying actually.

Would that actually change anything though? I mean what with 
alignment and everything, wouldn't returning a char be just as 
expansive? I'm not 100% sure. What is your use case that would 
require this?