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, which 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)