Created
June 11, 2018 23:23
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| arr = [5, 8, 11, 0] | |
| function bitat(x,i) | |
| x & (1 << (i - 1)) != 0 | |
| end | |
| y = BitMatrix(bitat(arr[i], j) for i in 1:4, j in 1:4) | |
| #= | |
| This fails, claiming: | |
| MethodError: Cannot `convert` an object of type Base.Generator{Base.Iterators.Prod2{UnitRange{Int64},UnitRange{Int64}},##9#10} to an object of type BitArray{2} | |
| This may have arisen from a call to the constructor BitArray{2}(...), | |
| since type constructors fall back to convert methods. | |
| How do I spell this request properly, so that my result is a BitMatrix? | |
| =# |
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