Re: multi_index

[Andrei Alexandrescu]

On 3/5/12 11:07 AM, Ellery Newcomer wrote:

import multi_index;
import replace;

template RBTreeZ(Value, Preds...){
template Splat(size_t i, size_t N){
static if(i >= N) enum Splat = "";
else{
enum Splat = Replace!(q{
OrderedUnique!("a", Preds[$i]),
}, "$i",i) ~ Splat!(i+1, N);
}
}
enum ss = (Replace!( q{
alias MultiIndexContainer!(Value,
IndexedBy!($indeces)) RBTreeZ;
}, "$indeces",Splat!(0,Preds.length)));
mixin(ss);
}
void main(){
alias RBTreeZ!(int, "a<b", "a>b") MahRBTree;
// it compiles; good enough for me
}

That's pretty cool. We should define easier ways to do this kind of stuff.

Andrei