On 04/24/2015 10:44 PM, Walter Bright wrote: > 4. Autodecoding is inefficient, especially considering that few > algorithms actually need decoding. Re-encoding the result back to UTF8 > is another inefficiency. > > I'm afraid we are stuck with autodecoding, as taking it out may be far > too disruptive. > > But all is not lost. The Phobos algorithms can all be fixed to not care > about autodecoding. The changes I've made to std.string all reflect that.
It probably won't be too disruptive to optimize algorithms such as filter to return a range of chars, but only if we support such ranges as narrow strings everywhere.
