abort(3) [freebsd man page]

ABORT(3)						   BSD Library Functions Manual 						  ABORT(3)

NAME

     abort -- cause abnormal program termination

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <stdlib.h>

     void
     abort(void);

DESCRIPTION

     The abort() function causes abnormal program termination to occur, unless the signal SIGABRT is being caught and the signal handler does not
     return.

     Any open streams are flushed and closed.

IMPLEMENTATION NOTES

     The abort() function is thread-safe.  It is unknown if it is async-cancel-safe.

RETURN VALUES

     The abort() function never returns.

SEE ALSO

     sigaction(2), exit(3)

STANDARDS

     The abort() function conforms to ISO/IEC 9945-1:1990 (``POSIX.1'').  The abort() function also conforms to ISO/IEC 9899:1999 (``ISO C99'')
     with the implementation specific details as noted above.

BSD
								   June 4, 1993 							       BSD

ABORT(3)						     Linux Programmer's Manual							  ABORT(3)

NAME

       abort - cause abnormal process termination

SYNOPSIS

       #include <stdlib.h>

       void abort(void);

DESCRIPTION

       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
       longjmp(3)).

       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.

RETURN VALUE

       The abort() function never returns.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +----------+---------------+---------+
       |Interface | Attribute	  | Value   |
       +----------+---------------+---------+
       |abort()   | Thread safety | MT-Safe |
       +----------+---------------+---------+
NOTES

       Up until glibc 2.26, if the abort() function caused process termination, all open streams were closed  and  flushed  (as  with  fclose(3)).
       However,  in  some  cases  this could result in deadlocks and data corruption.  Therefore, starting with glibc 2.27, abort() terminates the
       process without flushing streams.  POSIX.1 permits either possible behavior, saying that abort() "may include an attempt to effect fclose()
       on all open streams".

CONFORMING TO

       SVr4, POSIX.1-2001, POSIX.1-2008, 4.3BSD, C89, C99.

SEE ALSO

       gdb(1), sigaction(2), assert(3), exit(3), longjmp(3), raise(3)

COLOPHON

       This  page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2017-11-26								  ABORT(3)