import mir.ndslice.slice;
import mir.ndslice.topology: iota;

assert(iota(3, 4, 5, 6)
    .swapped!(2, 1)
    .shape == cast(size_t[4])[3, 5, 4, 6]);

assert(iota(3, 4, 5, 6)
    .swapped!(3, 1)
    .shape == cast(size_t[4])[3, 6, 5, 4]);

import mir.ndslice.slice;
import mir.ndslice.topology: iota;

assert(iota(3, 4, 5, 6)
    .swapped(1, 2)
    .shape == cast(size_t[4])[3, 5, 4, 6]);

assert(iota(3, 4, 5, 6)
    .swapped(1, 3)
    .shape == cast(size_t[4])[3, 6, 5, 4]);

import mir.ndslice.slice;
import mir.ndslice.topology: iota;
assert(iota(3, 4)
    .swapped
    .shape == cast(size_t[2])[4, 3]);