.\" Copyright Guillem Jover <guillem@hadrons.org>
.\" Copyright 2024, Alejandro Colomar <alx@kernel.org>
.\"
.\" SPDX-License-Identifier: Linux-man-pages-copyleft
.\"
.TH PR_SET_FPEMU 2const 2024-06-02 "Linux man-pages 6.9.1"
.SH NAME
PR_SET_FPEMU
\-
set floating-point emulation control bits
.SH LIBRARY
Standard C library
.RI ( libc ", " \-lc )
.SH SYNOPSIS
.nf
.BR "#include <linux/prctl.h>" "  /* Definition of " PR_* " constants */"
.B #include <sys/prctl.h>
.P
.BI "int prctl(PR_SET_FPEMU, long " fpemu );
.fi
.SH DESCRIPTION
Set floating-point emulation control bits to
.IR fpemu .
Pass
.B PR_FPEMU_NOPRINT
to silently emulate floating-point operation accesses, or
.B PR_FPEMU_SIGFPE
to not emulate floating-point operations and send
.B SIGFPE
instead.
.SH RETURN VALUE
On success,
0 is returned.
On error, \-1 is returned, and
.I errno
is set to indicate the error.
.SH ERRORS
.TP
.B EINVAL
.I fpemu
is not a valid value.
.SH STANDARDS
Linux.
ia64 only.
.SH HISTORY
Linux 2.4.18, 2.5.9.
(ia64)
.SH SEE ALSO
.BR prctl (2),
.BR PR_GET_FPEMU (2const)