| ... | ... | @@ -2,7 +2,7 @@ const std = @import("std"); |
| 2 | 2 | const string = []const u8; |
| 3 | 3 | const extras = @import("./lib.zig"); |
| 4 | 4 | |
| 5 | | pub fn opslice(slice: anytype, index: usize) ?std.meta.Child(@TypeOf(slice)) { |
| 5 | pub fn opslice(slice: anytype, index: usize) ?std.meta.Elem(@TypeOf(slice)) { |
| 6 | 6 | if (slice.len <= index) return null; |
| 7 | 7 | return slice[index]; |
| 8 | 8 | } |
| ... | ... | @@ -19,3 +19,16 @@ test { |
| 19 | 19 | try std.testing.expect(opslice(slice, 5) == 5); |
| 20 | 20 | try std.testing.expect(opslice(slice, 6) == null); |
| 21 | 21 | } |
| 22 | |
| 23 | test { |
| 24 | const array = [_]u8{ 0, 1, 2, 3, 4, 5 }; |
| 25 | const slice = &array; |
| 26 | |
| 27 | try std.testing.expect(opslice(slice, 0) == 0); |
| 28 | try std.testing.expect(opslice(slice, 1) == 1); |
| 29 | try std.testing.expect(opslice(slice, 2) == 2); |
| 30 | try std.testing.expect(opslice(slice, 3) == 3); |
| 31 | try std.testing.expect(opslice(slice, 4) == 4); |
| 32 | try std.testing.expect(opslice(slice, 5) == 5); |
| 33 | try std.testing.expect(opslice(slice, 6) == null); |
| 34 | } |