imports and a data structure (any critique welcome)

[Marco Leise]

Am Fri, 27 Dec 2013 13:45:10 +0000
schrieb "bearophile" <bearophileHUGS at lycos.com>:

> Timon Gehr:
> 
> > mixin ADT!q{ Term: Var char | Op char Term[] };
> >
> > void main(){
> >     const expr = Op('f', [Op('g',[Var('x'), Var('y')]), 
> > Op('a',[]), Var('x')]);
> > }
> 
> Where is ADT defined? (And why isn't it a Phobos patch on GitHub?)
> 
> 
> > convertNum could be written more compactly as:
> > char convertNum(int x){
> >     return "exyzfgh"[x<$?x:0];
> 
> That's too much compact :-) Humans put a space around operators, 
> and sometimes some parentheses don't hurt:
> 
> char convertNum(in int x) pure nothrow
> in {
>      assert(x >= 0);
> } body {
>      return "exyzfgh"[(x < $) ? x : 0];
> }
> 
> Bye,
> bearophile

Before you go _that_ far, just write:

  char convertNum(in size_t x) pure nothrow
  {
      return "exyzfgh"[(x < $) ? x : 0];
  }

:-)

-- 
Marco