I require a c++ code through which i can activate and deactive network connection in fedora
Oh, no problem, I’ll get right on that. 
Seriously though, what is Fedora?
a spammer test perhaps? that is a very odd question to ask in this forum, but it might be technical enough with some specific keywords to allow it to avoid some spam detection filters? just a thought. 
oh and a fedora is a type of hat… lot of octogenerians wear 'em.
Fedora is also another of those linux things… I hope he’s talking about that, and not trying to program his hat
As for the actual code… I have no idea 
It just looks like someone looking for an easy answer to there question that chose the wrong forum, I would ignore it.
What are you trying to do tassadaque? Why can’t your code just do a system call and use iwconfig or wlanconfig?
If you still need to do your own code, google for source code of iwconfig. It’s open source.