NA:
will not work and no I can't sort it.
Why no sort?
void main() {
import std.algorithm: sort, SwapStrategy;
import std.array: empty;
int[][][][] a =
[[[],
[],
[],
[],
[[0, 1], [0, 2]],
[[0, 0], [0, 3]]
],
[[],
[],
[],
[],
[[1, 1], [1, 2]],
[[1, 0], [1, 3]]
]
];
int[][][][] b =
[[[[0, 1], [0, 2]],
[[0, 0], [0, 3]],
[],
[],
[],
[]
],
[[[1, 1], [1, 2]],
[[1, 0], [1, 3]],
[],
[],
[],
[]
]
];
foreach (s1; a)
s1.sort!(q{ a.empty < b.empty }, SwapStrategy.stable);
assert(a == b);
}
Bye,
bearophile
