On 02/19/2016 06:26 PM, maik klein wrote:
> On Saturday, 20 February 2016 at 02:22:12 UTC, Ali Çehreli wrote:
>> On 02/19/2016 06:00 PM, maik klein wrote:
>>> How would I transpose
>>>
>>> float[3][2]
>>>
>>> to
>>>
>>> float[2][3]
>>>
>>> with http://dlang.org/phobos/std_range.html#.transposed

>>         auto r = arr[].map!((ref a) => a[]).array.transposed;

There is a problem there. Adding the following line

    writeln(r.array);

causes an error:

core.exception.AssertError@/usr/include/dmd/phobos/std/range/primitives.d(2207): Attempting to fetch the front of an empty array of float

Adding the following two lines does *not* preserve the range (first one does):

    writeln(r.save);
    writeln(r.save);

Did I not need (ref a) up there? I thought it would be a reference to a float[3] element.

>>         writeln(r);
>>     }
>> }
>>
>> Ali
>
> Your "Method B" is how I did it too but how do I convert it back to a
> static array of float[2][3]?

I don't know. :D

Ali

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