fegetexceptflag - Linux

Overview

fegetexceptflag is a command used to retrieve the current value of the exception flag for the floating-point unit (FPU). The exception flag is a flag that is set to indicate that an exception has occurred during an FPU operation.

Syntax

fegetexceptflag

Options/Flags

There are no options or flags available for fegetexceptflag.

Examples

The following command will print the current value of the exception flag:

fegetexceptflag

If the exception flag is set, the output will be 1. Otherwise, the output will be 0.

Common Issues

One common issue that can occur when using fegetexceptflag is that the FPU may not be enabled. If the FPU is not enabled, fegetexceptflag will not be able to retrieve the current value of the exception flag.

To enable the FPU, you can use the following command:

sudo modprobe fpu

Integration

fegetexceptflag can be used with other Linux commands to debug floating-point programs. For example, the following command will print the current value of the exception flag and the output of the fadd command:

fegetexceptflag; fadd 1.0 2.0

Related Commands

• fadd – Adds two floating-point numbers.
• fsub – Subtracts two floating-point numbers.
• fmul – Multiplies two floating-point numbers.
• fdiv – Divides two floating-point numbers.