abort - cause abnormal process termination
The abort() first unblocks the SIGABRT signal, and then raises
that signal for the calling process (as though raise(3) was called).
This results in the abnormal termination of the process unless the
SIGABRT signal is caught and the signal handler does not return (see
If the abort() function causes process termination, all
open streams are closed and flushed.
If the SIGABRT signal is ignored, or caught by a handler
that returns, the abort() function will still terminate the process.
It does this by restoring the default disposition for SIGABRT and
then raising the signal for a second time.
The abort() function never returns.
For an explanation of the terms used in this section, see attributes(7).
SVr4, POSIX.1-2001, POSIX.1-2008, 4.3BSD, C89, C99.
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