relative pointers

[Mikel Luri]

Hi all:
We're porting lot of C code from Windows to Unix/Linux.
In Windows we're using relative pointers (with the _based keyword) to
access some structures placed on shared memory. We would need
something like the Microsoft's _based keyword for Unix/Linux.
¿Does something similar exist in those S.O-s?
We would like to solve our problem without having to change every line
of code where an access to our pointers is made. ¿ is it posible ?
Thanks in advance
Mikel.

[Case]

Mikel Luri wrote:

Hi all:
We're porting lot of C code from Windows to Unix/Linux.
In Windows we're using relative pointers (with the _based keyword) to
access some structures placed on shared memory. We would need
something like the Microsoft's _based keyword for Unix/Linux.
¿Does something similar exist in those S.O-s?
We would like to solve our problem without having to change every line
of code where an access to our pointers is made. ¿ is it posible ?

The questions you ask are not appropriate here because they
do not deal with standard C, but with OS dependent implementation.

But, unless you're talking about shared memory between two programs,
why would you need something like a _based beast on UNIX/Linux?
(Glad to not be a Microsoft expert!)

Kees

[Grumble]

Mikel Luri wrote:

We're porting lot of C code from Windows to Unix/Linux.
In Windows we're using relative pointers (with the _based keyword) to
access some structures placed on shared memory. We would need
something like the Microsoft's _based keyword for Unix/Linux.
¿Does something similar exist in those S.O-s?
We would like to solve our problem without having to change every line
of code where an access to our pointers is made. ¿ is it posible ?

Try comp.unix.programmer and/or comp.os.linux.development.apps