On Wednesday, 6 July 2016 at 02:33:02 UTC, ketmar wrote:
On Wednesday, 6 July 2016 at 02:19:47 UTC, Craig Dillabaugh
wrote:
[...]
this is true for any dynamic array, including AAs. until
something is added to array, it actually a `null` pointer. i.e.
arrays (and AAs) generally consisting of pointer to data and
some length/info field. while array is empty, pointer to data
is `null`. and when you passing your dynamic array slice/AA to
function, it makes a copy of those internal fields. reallocing
`null` doesn't affect the original variable.
generally speaking, you should use `ref` if you plan to make
your dynamic array/AA grow. i.e.
void insertValue (ref int[][string]aa, string key, int value)
Thanks for giving me the correct solution, and for the
explanation.
Cheers,
Craig
