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)