Why can't I pass a const array to a function that takes scope const arrays?
Adnan
relay.public.adnan at outlook.com
Mon Feb 17 20:08:24 UTC 2020
On Monday, 17 February 2020 at 14:34:44 UTC, Simen Kjærås wrote:
> On Monday, 17 February 2020 at 14:04:34 UTC, Adnan wrote:
>> //
>
> All in all, I end up with this code:
>
> module strassens_matmul
> package {
> T[][] mulIterative(T)(const T[][] mat1, const T[][] mat2) {
> auto result = createMatrix!T(getRowSize!T(mat1),
> getColumnSize!T(mat2));
> foreach (row; 0 .. mat1.getRowSize()) {
> foreach (column; 0 .. mat2.getColumnSize()) {
> T value;
> foreach (i; 0 .. mat1.getRowSize()) {
> value += mat1.getPointCopy(row, i) *
> mat2.getPointCopy(i, column);
> }
> *result.getPointPtr(row, column) = value;
> }
> }
> return result;
> }
> }
Aren’t these passing by values? That’s why I used ref. Plus since
I don’t want to change the arrays in the function scope I used
const scope.
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