StoppingPolicy

1 import std.algorithm.comparison : equal;
2 import std.exception : assertThrown;
3 import std.range.primitives;
4 import std.typecons : tuple;
5 
6 auto a = [1, 2, 3];
7 auto b = [4, 5, 6, 7];
8 
9 auto shortest = zip(StoppingPolicy.shortest, a, b);
10 assert(shortest.equal([
11     tuple(1, 4),
12     tuple(2, 5),
13     tuple(3, 6)
14 ]));
15 
16 auto longest = zip(StoppingPolicy.longest, a, b);
17 assert(longest.equal([
18     tuple(1, 4),
19     tuple(2, 5),
20     tuple(3, 6),
21     tuple(0, 7)
22 ]));
23 
24 auto same = zip(StoppingPolicy.requireSameLength, a, b);
25 same.popFrontN(3);
26 assertThrown!Exception(same.popFront);