"

 COPYRIGHT (c) 2003 by eXept Software AG

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

"{ Package: 'stx:libbasic' }"

"{ NameSpace: Smalltalk }"

Number subclass:#MetaNumber

	instanceVariableNames:''

	classVariableNames:''

	poolDictionaries:''

	category:'Magnitude-Numbers'

!

!MetaNumber class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 2003 by eXept Software AG

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

!

documentation

"

    Common behavior for metaNumbers (INF, NaN).

    [author:]

        Claus Gittinger

    [see also:]

        Number Infinity NotANumber

        Float ShortFloat Fraction FixedPoint Integer Complex

        FloatArray DoubleArray                                                                         

"

! !

!MetaNumber class methodsFor:'queries'!

isAbstract

    ^ self == MetaNumber

! !

!MetaNumber methodsFor:'coercing & converting'!

asFloat

    ^ self class

        raise:#domainErrorSignal

        receiver:self

        selector:#asFloat

        arguments:#()

        errorString:'Cannot represent non-finite as float'.

!

asFraction

    ^ self class

        raise:#domainErrorSignal

        receiver:self

        selector:#asFraction

        arguments:#()

        errorString:'Cannot represent non-finite as fraction'.

!

asInteger

    ^ self class

        raise:#domainErrorSignal

        receiver:self

        selector:#asInteger

        arguments:#()

        errorString:'Cannot represent non-finite as integer'.

!

asLargeFloat

    ^ self class

        raise:#domainErrorSignal

        receiver:self

        selector:#asLargeFloat

        arguments:#()

        errorString:'Cannot represent non-finite as float'.

!

asLongFloat

    ^ self class

        raise:#domainErrorSignal

        receiver:self

        selector:#asLongFloat

        arguments:#()

        errorString:'Cannot represent non-finite as float'.

!

asShortFloat

    ^ self class

        raise:#domainErrorSignal

        receiver:self

        selector:#asShortFloat

        arguments:#()

        errorString:'Cannot represent non-finite as float'.

!

coerce:aNumber

    "convert the argument aNumber into an instance of the receiver's class and return it."

    ^ aNumber asMetaNumber

!

generality

    "NaN, INF etc. are more general than scalars, but not more general than

     vectors (e.g. Points)"

    ^ 105

! !

!MetaNumber class methodsFor:'documentation'!

version

    ^ '$Header$'

!

version_SVN

    ^ '$Id: MetaNumber.st 10761 2012-01-19 11:46:00Z vranyj1 $'

! !