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.\"     @(#)abort.3	8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd May 28, 2018
.Dt ABORT 3
.Os
.Sh NAME
.Nm abort
.Nd cause abnormal program termination
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In stdlib.h
.Ft void
.Fn abort void
.Sh DESCRIPTION
The
.Fn abort
function causes abnormal program termination to occur, unless the
signal
.Dv SIGABRT
is being caught and the signal handler does not return.
.Pp
Any open streams are flushed and closed.
.Sh IMPLEMENTATION NOTES
The
.Fn abort
function is thread-safe.
It is unknown if it is async-cancel-safe.
.Sh RETURN VALUES
The
.Fn abort
function
never returns.
.Sh SEE ALSO
.Xr abort2 2 ,
.Xr sigaction 2 ,
.Xr exit 3
.Sh STANDARDS
The
.Fn abort
function
conforms to
.St -p1003.1-90 .
The
.Fn abort
function also conforms to
.St -isoC-99
with the implementation specific details as noted above.