Why am I getting different array size depending where I calling?
Adam D Ruppe
destructionator at gmail.com
Mon Nov 14 21:07:42 UTC 2022
On Monday, 14 November 2022 at 21:00:38 UTC, matheus wrote:
> void[] getFoo(){
> writeln(cast(int[])bar);
> auto foo = getFoo();
> writeln(foo);
>
> Prints:
>
> [1, 0]
> [2, 0, 0, 0, 0, 0, 0, 0]
>
> Looking through godbolt.org the ASM generated with both
>
> So why the array generated from getFoo() is 4 times bigger than
> the other?
It isn't. You're casting one to int[] and not casting the other,
leaving it as void[], which writeln will interpret as just raw
bytes.
Since an int is 4x bigger than a byte, casting it to int shows
1/4 the number of ints.
But the actual array is the same.
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