May 26, 2018

Perform exit processing for a program or object

The AtExit module provides ANSI-C style exit processing modeled after the atexit function in the standard C library see atexit3C. Various exit processing routines may be registered by calling atexit and passing it the desired subroutine along with any desired arguments. Then, at program-exit time, the subroutines registered with atexit are invoked with their given arguments in the reverse order of registration last one registered is invoked first. Registering the same subroutine more than once will cause that subroutine to be invoked once for each registration.

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