Issue De-referencing a Pointer to a Struct in an Array

[Pen Hall]

On Friday, 14 July 2023 at 17:14:01 UTC, Pen Hall wrote:
> On Friday, 14 July 2023 at 16:57:33 UTC, Pen Hall wrote:
>> Hello!
>> In my program, I have defined a struct called `Tile` in the 
>> global scope. In my `main()` function I create a 3d array of 
>> `Tile`s called `board`. I then have a function called 
>> `loopBoard()` that loops through certain parts of `board`. I 
>> then create a reference to the `Tile` struct at the current 
>> position of `board`. This all works until I try to 
>> de-reference that pointer. The result compiles, but I get the 
>> exit code `-1073741819` whenever I run it. Below is the 
>> function in question. Do any of you have literally any clue 
>> about where I'm screwing up?
>>
>> [...]
>
> I realized a slight issue with this code is that 
> `board[number][symbol][i]` refers to an array... somehow. I 
> genuinely have no idea as to why this is.

I think i figured out my issue...
The issue was that 'board' is a pointer, and all of the ways I 
tried to de-reference it, failed. I just tried the form 
`(*board)[number][symbol][letter]` which worked to de-reference 
it. `&(*board)[number][symbol][letter]`, of course, works to get 
a pointer to that spot in memory.