Mapping in C

boschow's Avatar, Join Date: Feb 2007
Go4Expert Member
Hi,

is mapping used for linking two program's variables. I mean if i have program A with variable a1, and program B with variable a1. How do i know that the change of variable in program A also occurs in program B and the change of variable in program B also occurs in program A. Is this what is mapping used for ? If yes, what is the easyest way to "map" variables? What is the moust efficient way to write this tipe of program?

Thanks for your time and help
Best Regards,
BoSCHoW
0
aVague's Avatar, Join Date: May 2007
Go4Expert Member
bad question
dont ask it, better read about global and local variables
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DaWei's Avatar, Join Date: Dec 2006
Team Leader
The question has nothing to do with variable scope. Shared memory is one form of interprocess communication, and is not a language feature. IPC is entirely implementation dependent. You'll need to Google for your particular platform and OS.