ddash.algorithm.reverse source code

1 /**
2     Reverses the range by mutating it
3 */
4 module ddash.algorithm.reverse;
5 
6 ///
7 unittest {
8     auto arr = [1, 2, 3, 4];
9     arr.reverse;
10     assert(arr.equal([4, 3, 2, 1]));
11 }
12 
13 import ddash.common;
14 
15 /**
16     Reverses elements in a range
17 
18     Params:
19         range = the range to reverse
20 
21     Since:
22         0.0.1
23 */
24 void reverse(Range)(ref Range range)
25 if (from!"std.range".isBidirectionalRange!Range
26     && !from!"std.range".isRandomAccessRange!Range
27     && from!"std.range".hasSwappableElements!Range
28     || (from!"std.range".isRandomAccessRange!Range && from!"std.range".hasLength!Range))
29 {
30     import std.algorithm: reverse;
31     range.reverse;
32 }