PR_SET_FPEXC - set the floating-point exception mode

NAME  LIBRARY  SYNOPSIS  DESCRIPTION  RETURN VALUE  ERRORS  STANDARDS  HISTORY  SEE ALSO 

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NAME

PR_SET_FPEXC − set the floating-point exception mode

LIBRARY

Standard C library (libc, −lc)

SYNOPSIS

#include <linux/prctl.h> /* Definition of PR_* constants */
#include <sys/prctl.h>

int prctl(PR_SET_FPEXC, unsigned long mode);

DESCRIPTION

Set floating-point exception mode to mode. mode can be one of the following values.
PR_FP_EXC_SW_ENABLE

Use FPEXC for FP exception enables.

PR_FP_EXC_DIV

Use FPEXC for floating-point divide by zero.

PR_FP_EXC_OVF

Use FPEXC for floating-point overflow.

PR_FP_EXC_UND

Use FPEXC for floating-point underflow.

PR_FP_EXC_RES

Use FPEXC for floating-point inexact result.

PR_FP_EXC_INV

Use FPEXC for floating-point invalid operation.

PR_FP_EXC_DISABLED

Use FPEXC for FP exceptions disabled.

PR_FP_EXC_NONRECOV

Use FPEXC for async nonrecoverable exception mode.

PR_FP_EXC_ASYNC

Use FPEXC for async recoverable exception mode.

PR_FP_EXC_PRECISE

Use FPEXC for precise exception mode.

RETURN VALUE

On success, 0 is returned. On error, −1 is returned, and errno is set to indicate the error.

ERRORS

EINVAL

mode is not a valid value.

STANDARDS

Linux. PowerPC only.

HISTORY

Linux 2.4.21, 2.5.32. (PowerPC)

SEE ALSO

prctl(2), PR_GET_FPEXC(2const)

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