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use mdarray::Array; #[test] fn test_array() { let mut a = Array::new(); a.resize([3, 4], 0); for i in 0..3 { for j in 0..4 { a[[i, j]] = i + j; } } a.iter_mut().for_each(|x| *x *= 2); assert_eq!(a[..].iter().sum::<usize>(), 60); }