Re: YesOrNo: useful idiom helper or wanking?

[spir]

On 04/11/2011 08:16 PM, KennyTM~ wrote:
If the goal of YesOrNo is simply for documentation, why not define it like this?
import std.stdio;

template YesOrNo(T) if(is(T == enum) && !T.no && T.yes) {
     alias T YesOrNo;
}

enum Redraw : bool { no, yes }

void drawCircle(YesOrNo!Redraw redraw) {
     writeln(cast(bool) redraw);
}

void main() {
     drawCircle(Redraw.yes);
     drawCircle(Redraw.no);
     // drawCircle(false);  (cannot implicitly convert expression (false) of
type bool to Redraw)
}

Very nice, indeed. Also the side-effect that forces the caller to write 
readable code ;-)

Denis
--
_________________
vita es estrany
spir.wikidot.com