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Due to policy where I work, I am unable to use a version of Boost newer than 1.33.1 and unable to use a version of GCC newer than 4.1.2. Yes, it's garbage, but there is nothing I can do about it. Boost 1.33.1 does not contain the interprocess library. That said, one of my projects requires placing an std::map (or more likely an std::unordered_map ) in to shared memory. It is only written/modified ONE TIME when the process loads by a single process (the "server") and read by numerous other processes. I haven't done shared memory IPC before so this is fairly new territory for me. I took a look at shmget() but it would appear that I can't continually use the same shared memory key for allocation (as I assume would be needed with STL container allocators). Are there any other NON-BOOST STL allocators that use shared memory? EDIT: This has been done before. Dr. Dobbs had an article on how to do this exactly back in 2003 , and I started to use it as a reference. However, the code listings are incomplete and links to them redirect to the main site. EDIT EDIT: The only reason I don't just re-write Boost.Interprocess is because of the amount of code involved. I was just wondering if there was something relatively short and concise specifically for POSIX shared memory that I could re-write from scratch since data transfers between networks are also subject to a multi-day approval process...

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