intoGenerator

1 import nxt.dynamic_array : SA = DynamicArray;
2 import std.traits : isIterable;
3 import std.range.primitives : isInputRange;
4 alias C = SA!int;
5 
6 auto cs = C([11, 13, 15, 17].s).intoUniqueRange;
7 auto cs2 = cs.dup;
8 
9 assert(cs !is cs2);
10 
11 assert(cs == cs2);
12 cs2.popFront();
13 assert(cs2.length == 3);
14 assert(cs != cs2);
15 
16 static assert(isInputRange!(typeof(cs)));
17 static assert(isIterable!(typeof(cs)));
18 
19 assert(!cs.empty);
20 assert(cs.length == 4);
21 assert(cs.front == 11);
22 assert(cs.back == 17);
23 
24 cs.popFront();
25 assert(cs.length == 3);
26 assert(cs.front == 13);
27 assert(cs.back == 17);
28 
29 cs.popBack();
30 assert(cs.length == 2);
31 assert(cs.front == 13);
32 assert(cs.back == 15);
33 
34 assert(cs.frontPop() == 13);
35 assert(cs.length == 1);
36 assert(cs.front == 15);
37 assert(cs.back == 15);
38 
39 assert(cs.backPop() == 15);
40 assert(cs.length == 0);
41 assert(cs.empty);

import nxt.dynamic_array : SA = DynamicArray;
alias C = SA!int;
assert(C([11, 13, 15, 17].s)
       .intoUniqueRange()
       .filterUnique!(_ => _ != 11)
       .mapUnique!(_ => 2*_)
       .equal([2*13, 2*15, 2*17]));