Doubt - Static multidimension arrays
Ali Çehreli via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Mon Jan 18 21:32:07 PST 2016
On 01/18/2016 07:20 PM, albert00 wrote:
> It's strange since I was declaring int[1][2] (1 row / 2 columns) and
> then accessing as:
>
> arr2[0][0] = 1;
> arr2[1][0] = 2;
>
> Seems like 2 rows and 1 column. This makes sense?
Yes, it makes sense and its consistent. This is one of many little
things that D is an improvement over C and C++.
Static array type syntax is always the following:
Type[length]
For example, the following is a row with two columns:
int[2]
When you want a certain number of those, you follow the same array
definition syntax:
Type[length]
Since each element is int[2] in this case, for 3 rows we get:
int[2][3]
So, in order to get 1 row of 2 columns, you would write
int[2][1]
Accessing elements is consistent as well:
var[index]
So,
arr2[0]
would be the first row, which has two columns; which is further accessed
by another index:
arr2[0][1]
is first row, second column.
Ali
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