System.Math.TFPUExceptionMask

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Delphi

TFPUExceptionMask = set of TFPUException;

C++

typedef System::Set<TFPUException, TFPUException::exInvalidOp, TFPUException::exPrecision> TFPUExceptionMask;

Properties

Type	Visibility	Source	Unit	Parent
set typedef	public	System.Math.pas System.Math.hpp	System.Math	System.Math

Description

Specifies a set of masked FPU floating-point exceptions.

The FPU (Floating Point Unit) handles floating point calculations on 32-bit systems. You can prevent FPU floating-point exceptions from occuring by using SetFPUExceptionMask to mask some or all of them.

When an exception is masked, the FPU returns its best attempt at a value – often NaN, Infinity, or NegInfinity. The value depends on the operation and the current rounding mode (see GetFPURoundMode and SetFPURoundMode).

TFPUExceptionMask values are defined in TArithmeticException: exInvalidOp, exDenormalized, exZeroDivide, exOverflow, exUnderflow, exPrecision.

See Also

• System.Math.TFPUException
• System.Math.TArithmeticException
• System.Math.SetExceptionMask
• System.Math.SetFPUExceptionMask
• System.Math.SetSSEExceptionMask
• System.Math.SetFPURoundMode
• System.Math.NaN
• System.Math.Infinity
• System.Math.NegInfinity

• Floating-Point Number Control Routines
• About Floating-Point Arithmetic