Marketing of D - article topic ideas?

[BCS]

Hello Nick,

> "Nick Sabalausky" <a at a.a> wrote in message
> news:hujd9m$11of$1 at digitalmars.com...
> 
>> "Nick Sabalausky" <a at a.a> wrote in message
>> news:hujd6a$11e8$1 at digitalmars.com...
>> 
>>> Assuming, of course, a 'max' that works on a range, which would be
>>> easy enough to do. Probably something like:
>>> 
>> ElementType!T max(T range)  // Corrected
>> 
>>> {
>>> return reduce!ordinaryMax(range);
>>> // Or
>>> return reduce!"a>b?a:b"(range);
>>> }
> Or:
> 
> alias reduce!"a>b?a:b" max;
> 
> God, I love D :)
> 

so we have:

alias reduce!"a>b?a:b" range_max;

CommonType!(staticMap!(ElementType, T)) largestElement(T...)(T args)
{
  static assert( !is(typeof(return) == void) );
  return max( map!max(args) );
}

Why isn't that just one line, like:

alias polyMapReduce!(reduce!"a>b?a:b", "a>b?a:b") largestElelemt;

I'm shure a better one could be written but I think this would do it:

auto polyMapReduce(alias map, string reduce, T...)(T t)
{
     static assert(T.length > 0);
     static if(T.length > 1)
     {
         auto a = map(t[0]);
         auto b = polyMapReduce!(map,reduce)(t[1..$]);
         return mixin(reduce);
     }
     else
         return map(t[0]);
}

-- 
... <IXOYE><