# What would the prototype declaration of a C function look like that returns an n-dimensional array?

<>

This question already has an answer here:

I would suggest this:

```array foo();
```

where array is an struct defined as:

```struct array
{
int *data;
unsigned int ndim;  //number of dimensions
unsigned int *size; //size of each dimension is size[i].
};
```

Of course, data is just a pointer to int, but the other two fields in the struct can be used in such a way that the data can be interpreted like an n dimensional array, and size of each dimension can be stored in size which is yet another pointer.

For example, take 4-dimensional array (dimension size are 10, 20, 30 and 40), then you can create and initialize 4D array as:

```unsigned int size[] = {10,20,30,40};
array arr = create(4, size);
```

where create function is defined as:

```array create(unsigned int n, unsigned int *size)
{
array arr;
arr.ndim = n;
arr.size = (unsigned int*) malloc(n * sizeof(unsigned int));
int i;
unsigned int totalElements =  1;
for( i = 0 ; i < n ; ++i)
{
arr.size[i] = size[i];
totalElements *= size[i];
}
arr.data = (unsigned int*) malloc(totalElements * sizeof(int));
return arr;
}
```

Of course, you've to work a lot with the fields of the struct, to make it look like n-dimensional array. You don't need to follow me exactly the way I explained, but this is just a basic idea. You can modify it, to suit your specific need.

I would suggest you to write few functions, to manipulate the array, and to access the array elements. I've written create function, likewise here is destroy function:

```void destroy(array arr)
{
if (arr.size != NULL && arr.data != NULL)
{
free(arr.size);
free(arr.data);
arr.size = arr.data = NULL;
}
}
```

### Return a List<> of active masks in C#

Here's the code I'm working on (I found some of it online) and I'm trying to return a List&lt;&gt; of the flags that are active. Here's the code:

### jQuery/ajax is not updating divs on the page

I'm trying to update a div with id=OCRID, which is a div on my page that contains some data. I used the code at the following URL first, however we switched to a jQuery approach. &lt;-Ugly ajax->.

###### About UNIX Resources Network

Original, collect and organize Developers related documents, information and materials, contains jQuery, Html, CSS, MySQL, .NET, ASP.NET, SQL, objective-c, iPhone, Ruby on Rails, C, SQL Server, Ruby, Arrays, Regex, ASP.NET MVC, WPF, XML, Ajax, DataBase, and so on.