semex

An interactive exerciser for the semctl, semget, and semop calls, originally from System V Unix.

This was originally written sometime in the dark and backward abysm of time back in the 1980s.

If you are on a 32-bit machine or using a compiler where you can’t count on a memory address being the same size as a long int, see the WARNING comments in the code.

The latest version of this code lives at http://www.catb.org/~esr/semex/.