atexit
Synopsis
#include <stdlib.h>
int atexit(void (*func)(void));
Status
Partially implemented
Conformance
IEEE Std 1003.1-2017
Description
The purpose is to register a function to run at process termination. The atexit() function shall register the function
pointed to by func, to be called without arguments at normal
program termination. At normal program termination, all functions registered by the atexit() function shall be called,
in the reverse order of their registration, except that a function is called after any previously registered functions
that had already been called at the time it was registered. Normal termination occurs either by a call to exit()
or a return from main().
At least 32 functions can be registered with atexit().
After a successful call to any of the exec functions, any functions previously
registered by atexit() shall no longer be registered.
Return value
Upon successful completion, atexit() shall return 0, otherwise, it shall return a non-zero value.
Errors
No errors are defined.
Tests
Untested
Known bugs
None