Who wore it better?

[Steven Schveighoffer via Digitalmars-d]

On 4/15/16 1:24 PM, Andrei Alexandrescu wrote:
> I grepped phobos for "inout" and picked a heavy one. Not even cherry
> picking here. You be the judges.
>
> Before:
>
> inout(T)[] overlap(T)(inout(T)[] r1, inout(T)[] r2) @trusted pure nothrow
> {
>      alias U = inout(T);
>      static U* max(U* a, U* b) nothrow { return a > b ? a : b; }
>      static U* min(U* a, U* b) nothrow { return a < b ? a : b; }
>
>      auto b = max(r1.ptr, r2.ptr);
>      auto e = min(r1.ptr + r1.length, r2.ptr + r2.length);
>      return b < e ? b[0 .. e - b] : null;
> }
>
> After:
>
> auto overlap(T, U)(T[] r1, U[] r2) @trusted pure nothrow
> if (is(typeof(r1.ptr < r2.ptr) == bool))
> {
>      import std.algorithm : min, max;
>      auto b = max(r1.ptr, r2.ptr);
>      auto e = min(r1.ptr + r1.length, r2.ptr + r2.length);
>      return b < e ? b[0 .. e - b] : null;
> }
>
> Who wore it better?

inout(T)[] overlap(T)(inout(T)[] r1, inout(T)[] r2) @trusted pure nothrow
{
     import std.algorithm: min, max;
     auto b = max(r1.ptr, r2.ptr);
     auto e = min(r1.ptr + r1.length, r2.ptr + r2.length);
     return b < e ? b[0 .. e - b] : null;
}

-Steve