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atexit.3: The same exit handler may be registered multiple times
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -46,6 +46,9 @@ called at normal process termination, either via
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or via return from the program's \fImain\fP().
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Functions so registered are called in
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the reverse order of their registration; no arguments are passed.
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The same function may be registered multiple times:
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it is called once for each registration.
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.LP
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POSIX.1-2001 requires that an implementation allow at least
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.B ATEXIT_MAX
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