C Function Parameters

[Stewart Gordon]

Tyro wrote:
> Could someone please tell me if I'm reading the following correctly
> 
>     int myfunc(MyStruct *ms, void * (*allocF)(size_t s))
> 
> The second parameter above [void * (*allocF)(size_t s)], is a pointer to 
> a function that accepts a size_t parameter and returns a void pointer? 

Yes.

<snip>
>     2) Is [void function(size_t s) allocF] a suitable replacement

No.  However, this is:

     int myfunc(MyStruct* ms, void* function(size_t s) allocF)

I always use the D function/delegate notation.  Much easier to read than 
the C notation.  Note also that the '*' has been attached to the type, 
which is more logical in D.

> or would it be better to use a delegate?

Whether you should use function or delegate depends on what you're going 
to pass in.

function - module level functions or static member functions
delegate - member functions acting on a specific object, or nested functions

Stewart.

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