D2's std.algorithm

[Bill Baxter]

 >   sort!("a > b")(array);

I just wanted to say that this is BRILLIANT!  Zero call overhead, zero 
syntax overhead, compile-time lambda functions!

All the algorithms should support this syntax so we can do sexy 
compile-time lambda one-liners like:

    find!("a.some_member > 10")(array);

or

    partition!("a.call_something() !is null")(array);

etc.

And probably those should allow a data arg passed as 'b' to the lambda 
function so you could do something like
    find!("a.some_member > b")(array, 10);

Or even use template varargs and number the args automatically to allow:

    find!("a.x > b && a.w < c")(array, 10, 20);

It would just sequentially name the arguments b,c,d,e... etc.

Or even make it like C#/Tango's format string patterns since the string 
can be processed before mixing it in.
    find!("a.x > {1} && a.w < {2}")(array, 10, 20);

That would be excellent.  Take that boost::lambda!

--bb