Re: Class member function with a Callback funtion parameter

[Herbert via Digitalmars-d-learn]

On Monday, 27 January 2020 at 22:20:42 UTC, H. S. Teoh wrote:
On Mon, Jan 27, 2020 at 10:13:47PM +0000, Herbert via 
Digitalmars-d-learn wrote:
On Monday, 27 January 2020 at 21:51:35 UTC, Adam D. Ruppe 
wrote:
> On Monday, 27 January 2020 at 21:21:55 UTC, Herbert wrote:
> > My project does not allow dynamic memory. So I can't use 
> > delegates.
> 
> delegates do not require dynamic memory.
> 
> &obj.member doesn't allocate any new memory (it just points 
> to the existing object) yet yields a delegate.

As I understand the D language documentation says: delegates 
sometimes use dynamic memory.

Only if you're using a lambda or a delegate that captures local 
variables.


T

Chapter "Memory Management":

"D has built-in types that may be difficult to use without the 
GC: exceptions, strings, dynamic arrays, associative arrays, and 
delegate closures."

I would like to do something like this:

interface Timer
{
    void delegate pCallbackFunction(void);

    this();
    void Start(ushort milliseconds, pCallbackFunction);
    void Halt();
    void Restart();
}