Thoughts on versioning

[rikki cattermole]

Alternatively:

mixin template StandardAlgorithmComparison() {
     Tuple!(Range1, Range2) mismatch(alias pred = "a == b", Range1, 
Range2)(Range1 r1, Range2 r2)
     if (isInputRange!(Range1) && isInputRange!(Range2))
     {
         for (; !r1.empty && !r2.empty; r1.popFront(), r2.popFront())
         {
             if (!binaryFun!(pred)(r1.front, r2.front)) break;
         }
         return tuple(r1, r2);
     }
}

In std2.algorithm.comparison:

mixin StandardAlgorithmComparison;

In std.algorithm.comparison:

mixin StandardAlgorithmComparison;