VC++ Delegate Options

  • Thread starter Thread starter Rob Schieber
  • Start date Start date
R

Rob Schieber

Hey,

I need to utilize function pointers in my MFC application. I was
wondering what the best approach is. Im a C# developer, so I'm farily
comofortable using delegates.

So far I've found a library called boost.function
http://www.boost.org/doc/html/function.html which looks easy to use
simillar to delegates. Just wondering if there's anything better out there.
 
Rob Schieber said:
Hey,

I need to utilize function pointers in my MFC application. I was
wondering what the best approach is. Im a C# developer, so I'm farily
comofortable using delegates.

So far I've found a library called boost.function
http://www.boost.org/doc/html/function.html which looks easy to use
simillar to delegates. Just wondering if there's anything better out
there.
Click to expand...

If you want something like delegates, boost::function is a good way to go.

-cd
 
Rob said:
So far I've found a library called boost.function
http://www.boost.org/doc/html/function.html which looks easy to use
simillar to delegates. Just wondering if there's anything better out
there.
Click to expand...

If you're interested about the internals of implementing delegates in
native C++, you may want to take a look at my article at
http://tweakbits.com/articles/events/index.html

No, I'm not saying it's better than boost::function. However, my article
provides an in-depth explanation of how these delegate (closure)
templates work internally. In fact, I provided two independent solutions
for the same problem. When I started implementing it, boost::function
did not exist, or at least was not publically available yet. The best
thing about my implementation is that it is very small. It only uses 2
pointers, and therefore sizeof(event) = 2 * sizeof(void*), which is the
theoretical minimum (an event must store the address of both the member
function and the object as well). I don't know how it compares to
boost::function's memory requirements, but these days it's not that
important anymore.

Boost has a very nice, generally accepted, multi-platform
implementation, with a wide user-base. I encourage you to use that. My
opinion is that if something is implemented in STL or boost, and it
works for me, I could hardly find a reason not to use it.

Tom
 
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