One case of array assignments

[Timon Gehr]

On 03/13/2013 09:59 PM, John Colvin wrote:
> On Wednesday, 13 March 2013 at 20:46:35 UTC, Timon Gehr wrote:
>> On 03/13/2013 09:23 PM, John Colvin wrote:
>>> On Wednesday, 13 March 2013 at 20:10:14 UTC, bearophile wrote:
>>>>> int[10][3] = [1, 2, 3];
>>>>
>>>> Currently that second line of code doesn't work.
>>>>
>>>> Bye,
>>>> bearophile
>>>
>>> It would be really nice if it did.
>>
>> Then what's the meaning of
>>
>> int[3][3] x = [1,2,3];
>>
>> Is it
>>
>> int[3][3] x = [[1,2,3],[1,2,3],[1,2,3]];
>>
>> or
>>
>> int[3][3] x = [[1,1,1],[2,2,2],[3,3,3]];
>
> the former, clearly. It directly follows from
>
> int[3] a = 1;
>
> Every element of the array is initialised to the value given. x is an
> array of arrays and hence each "element-array" is initialised to the
> array on the right hand side.

That's clearly a valid way of reasoning, however, it is not the only one.

int[3] a = 1;
int[3] b = 2;
int[3] c = 3;

int[3][3] x = [a,b,c];