pass dimension size of array handle to DLL

[Bublina]

Hello,

what is the correct way of passing Array handle dimensions, I found this document, that only describes the memory situation and some examples that suggest both following possibilities:

typedef struct {
        dimSizes[dimensions]
	ArrDatatype data[1];
} Array **ArrayHdl;

 or this one:

typedef struct {
	int32 dimSize1;
        .
        .
        .
        .
        int32 dimSizeX;
	ArrDatatype data[1];
} Array **ArrayHdl;

[rolfk · Accepted solution]

---

@Bublina wrote:

Hello,

what is the correct way of passing Array handle dimensions, I found this document, that only describes the memory situation and some examples that suggest both following possibilities:

typedef struct {
        dimSizes[dimensions]
	ArrDatatype data[1];
} Array **ArrayHdl;

 or this one:

typedef struct {
	int32 dimSize1;
        .
        .
        .
        .
        int32 dimSizeX;
	ArrDatatype data[1];
} Array **ArrayHdl;

---

They are equivalent, except that the int32 has been forgotten in the first one!

And a comma in the type declaration for both!

Personally I tend to use the second one, but never did more than 2D arrays. For multi-D arrays, the first may be interesting if you happen to loop through the array dimensions somehow.

[AECmartin]

Hi Bublina,

as rolfk said, both ways are correct. It depends which way will follow better your programming style. I would suggest the second one because there you can directly see how many dimensions are used. On the other side, the first one is more flexible.

Best regards,

Martin

[Bublina]

Ok, thanks for reply. I use the second one, it makes the code more readable.