On Sunday, September 1, 2019 12:42:54 PM MDT Dennis via Digitalmars-d-learn
wrote:
> On Sunday, 1 September 2019 at 18:26:20 UTC, WhatMeWorry wrote:
> > Maybe my question is when would be want to use 3) without also
> > adjusting the .ptr ?
>
> It matters when casting to a boolean, since an empty
On Sunday, 1 September 2019 at 18:26:20 UTC, WhatMeWorry wrote:
Maybe my question is when would be want to use 3) without also
adjusting the .ptr ?
It matters when casting to a boolean, since an empty array with a
non-null pointer is still `true` while an array with null pointer
casts to
int[] a = [ 3, 7, 9 ];
1) a = [];
and
2) a = null;
sets both the .ptr property of the array to null, and the length
to 0.
whereas
3) a.length = 0;
just sets the length to 0.
If all the above is correct, does this mean we should just stick
to either of the first two forms and never use
