ptolemy.math

Class Overflow.ToZero

java.lang.Object

ptolemy.math.Overflow

ptolemy.math.Overflow.ToZero

All Implemented Interfaces:

java.lang.Cloneable

Enclosing class:

Overflow

public static class Overflow.ToZero
extends Overflow

The overflow to zero strategy.

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.math.Overflow

Overflow.Grow, Overflow.Minimize, Overflow.Modulo, Overflow.Saturate, Overflow.ToZero, Overflow.Trap

Field Summary

Fields inherited from class ptolemy.math.Overflow

CLIP, GENERAL, GROW, MINIMIZE, MODULO, SATURATE, THROW, TO_ZERO, TRAP, WRAP

Method Summary

Modifier and Type	Method and Description
java.math.BigInteger	minusInfinity(Quantization quant) Return the value of minus infinity, or null if unrepresentable.
java.math.BigInteger	plusInfinity(Quantization quant) Return the value of plus infinity, or null if unrepresentable.
FixPoint	quantize(java.math.BigInteger integerValue, Precision precision) Return a new FixPoint object based on the given BigInteger value and Precision constraint.

Methods inherited from class ptolemy.math.Overflow

_addOverflow, clone, equals, forName, getName, hashCode, isOutOfRange, isOverflow, isUnderflow, nameIterator, quantizeGrow, quantizeMinimum, quantizeModulo, quantizeSaturate, quantizeToZero, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

minusInfinity

public java.math.BigInteger minusInfinity(Quantization quant)

Description copied from class: Overflow

Return the value of minus infinity, or null if unrepresentable.

The saturation value is returned for the saturate and to_zero strategies for which infinity is quantizable. Null is returned for other strategies.

Overrides:

minusInfinity in class Overflow

Parameters:

quant - The quantization specification.

Returns:

The value if defined, null if not..

plusInfinity

public java.math.BigInteger plusInfinity(Quantization quant)

Description copied from class: Overflow

Return the value of plus infinity, or null if unrepresentable.

The saturation value is returned for the saturate and to_zero strategies for which infinity is quantizable. Null is returned for other strategies.

Overrides:

plusInfinity in class Overflow

Parameters:

quant - The quantization specification.

Returns:

The value if defined, null if not.

quantize

public FixPoint quantize(java.math.BigInteger integerValue,
                         Precision precision)

Description copied from class: Overflow

Return a new FixPoint object based on the given BigInteger value and Precision constraint. This method will return a valid FixPoint object that conforms to the given overflow strategy implemented by the extending class.

Specified by:

quantize in class Overflow

Parameters:

integerValue - The unbounded integer value.

precision - The Precision constraint of the quantization.

Returns:

A valid FixPoint value that conforms to the overflow strategy.