abort - cause abnormal process termination

       For an explanation of the terms used in this section, see attributes(7).
       ┌─────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                                                                   │ Attribute     │ Value   │
       ├─────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
       │ abort()                                                                     │ Thread safety │ MT-Safe │
       └─────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘

       The  abort()  function  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.

       As  with  other  cases of abnormal termination the functions registered with atexit(3) and on_exit(3) are
       not called.

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

       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".

       Standard C library (libc, -lc)

       abort - cause abnormal process termination

       The abort() function never returns.

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

Linux man-pages 6.9.1                              2024-05-02                                           abort(3)

       C11, POSIX.1-2008.

#include<stdlib.h>[[noreturn]]voidabort(void);