ABORT(3) 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. The abort() function causes a report to be generated by Crash Reporter. If you wish to terminate without generating a crash report, use exit(3) instead. RETURN VALUES The abort() function never returns. SEE ALSO sigaction(2), exit(3) STANDARDS The abort() function conforms to IEEE Std 1003.1-1990 (“POSIX.1”). The abort() function also conforms to ISO/IEC 9899:1999 (“ISO C99”) with the implementation specific details as noted above. macOS 15.2 June 4, 1993 macOS 15.2