How to implement brk() system call from the scratch

[rukshan]

for my project i need to implement brk() system call.Is there any C/C++ code to implement that?please this is really urgent?

Thank you

[KCfromNC]

Should be there in various Linux and *BSD implementations. But they're going to be highly specific to your OS so I don't know if copy and paste is the correct answer here.

[rukshan]

give me some link to reffer

[Elysia]

Sure, you could implement this in pure C++, but that would a terribly waste of memory.
Better use some OS-specific calls, so that begs the question: what operating system?