Hello everyone!

I need to create a two-dimensional array in this way, for example:

auto x = 10;
auto y = 10;
auto some_array = new string[x][y];
variable x cannot be read at compile time

I tried this:
enum columns_array = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20];
auto y = 10;
int i = 1;
auto some_array = new string[columns_array[i]][y];
Error: columns_array is used as a type

And yet, if I have a function:
string[x][] some_function (some par) {
   auto x = 10;
   auto y = 10;
   auto some_array = new string[x][y];
   return some_array;
   }

Thanks in advance.

On Thursday, 13 November 2014 at 07:08:19 UTC, Sergey wrote:
>   Hello everyone!
>
> I need to create a two-dimensional array in this way, for example:

What did you want the type of the array to be? "string[10][10]" or "string[][]"?

On Thursday, 13 November 2014 at 07:50:26 UTC, Brian Schott wrote:
> On Thursday, 13 November 2014 at 07:08:19 UTC, Sergey wrote:
>>  Hello everyone!
>>
>> I need to create a two-dimensional array in this way, for example:
>
> What did you want the type of the array to be? "string[10][10]" or "string[][]"?

Oops, I did not see some of the details, how to work with string[][]. Right now I still try to understand. Sorry. Thanks for the push! :)

On Thu, 13 Nov 2014 07:08:17 +0000
Sergey via Digitalmars-d <digitalmars-d@puremagic.com> wrote:

>    Hello everyone!
> 
> I need to create a two-dimensional array in this way, for example:
> 
> auto x = 10;
> auto y = 10;
> auto some_array = new string[x][y];
> variable x cannot be read at compile time
> 
> I tried this:
> enum columns_array =
> [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20];
> auto y = 10;
> int i = 1;
> auto some_array = new string[columns_array[i]][y];
> Error: columns_array is used as a type
> 
> And yet, if I have a function:
> string[x][] some_function (some par) {
>     auto x = 10;
>     auto y = 10;
>     auto some_array = new string[x][y];
>     return some_array;
>     }
> 
> Thanks in advance.
you can't. use static constructor.

On 11/13/14 2:08 AM, Sergey wrote:
>    Hello everyone!
>
> I need to create a two-dimensional array in this way, for example:
>
> auto x = 10;
> auto y = 10;
> auto some_array = new string[x][y];

auto some_array = new string[][](x, y);

Note, this creates 10 arrays of 10 elements all on the heap, and then a 10 element array to point at them.

If you wanted an array of 10 *fixed sized* arrays (which is what your code was trying to do), then you need to have the first dimension be a compile-time constant such as a literal or an enum/immutable.

-Steve

On Thursday, 13 November 2014 at 14:27:32 UTC, Steven Schveighoffer wrote:
> On 11/13/14 2:08 AM, Sergey wrote:
>>   Hello everyone!
>>
>> I need to create a two-dimensional array in this way, for example:
>>
>> auto x = 10;
>> auto y = 10;
>> auto some_array = new string[x][y];
>
> auto some_array = new string[][](x, y);
>
> Note, this creates 10 arrays of 10 elements all on the heap, and then a 10 element array to point at them.
>
> If you wanted an array of 10 *fixed sized* arrays (which is what your code was trying to do), then you need to have the first dimension be a compile-time constant such as a literal or an enum/immutable.
>
> -Steve

Thanks!!!
This is what I need!
auto some_array = new string[][](x, y);