Array declaration warning

[Alex Parrill via Digitalmars-d-learn]

On Tuesday, 2 June 2015 at 16:17:23 UTC, Paul wrote:
> This array of structures...
>
> CoOrd pathList[NumPaths][];
>
> generates a warning when compiled with DMD 32 bit -w flag, but 
> not 64 bit.

This gives me a warning using rdmd on x64 XUbuntu.

> If I correct the declaration to 'D style'
>
> CoOrd[NumPaths][] pathList;
>
> It compiles without warning but I cannot append items to the 
> array like this...
>
> pathList[n] ~= CoOrd(cX, cY);
>
> What am I doing wrong?

`CoOrd[NumPaths]` is a fixed-length array type containing 
`NumPaths` elements. You can't append to it. `CoOrd[NumPaths][]` 
is a dynamic array of such arrays, but `pathList[n]` gets one of 
the fixed-length arrays from the dynamic array.

Perhaps you mean `CoOrd[][NumPaths]`?