The Case Against Autodecode

[Walter Bright via Digitalmars-d]

On 6/2/2016 12:05 PM, Andrei Alexandrescu wrote:
> * s.all!(c => c == 'ö') works only with autodecoding. It returns always false
> without.

The o is inferred as a wchar. The lamda then is inferred to return a wchar. The 
algorithm can check that the input is char[], and is being tested against a 
wchar. Therefore, the algorithm can specialize to do the decoding itself.

No autodecoding necessary, and it does the right thing.