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"
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COPYRIGHT (c) 2003 by eXept Software AG
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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"{ Package: 'stx:libbasic' }"
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Number subclass:#MetaNumber
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'Magnitude-Numbers'
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!
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!MetaNumber class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 2003 by eXept Software AG
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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!
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documentation
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"
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Common behavior for metaNumbers (INF, NaN).
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[author:]
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Claus Gittinger
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[see also:]
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Number Infinity NotANumber
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Float ShortFloat Fraction FixedPoint Integer Complex
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FloatArray DoubleArray
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"
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! !
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!MetaNumber methodsFor:'coercing & converting'!
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asFloat
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^ self class
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raise:#domainErrorSignal
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receiver:self
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selector:#asFloat
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arguments:#()
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errorString:'Cannot represent non-finite as float'.
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!
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asFraction
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^ self class
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raise:#domainErrorSignal
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receiver:self
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selector:#asFraction
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arguments:#()
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errorString:'Cannot represent non-finite as fraction'.
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!
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asInteger
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^ self class
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raise:#domainErrorSignal
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receiver:self
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selector:#asInteger
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arguments:#()
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errorString:'Cannot represent non-finite as integer'.
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!
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asLargeFloat
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^ self class
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raise:#domainErrorSignal
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receiver:self
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selector:#asLargeFloat
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arguments:#()
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errorString:'Cannot represent non-finite as float'.
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!
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asLongFloat
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^ self class
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raise:#domainErrorSignal
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receiver:self
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selector:#asLongFloat
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arguments:#()
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errorString:'Cannot represent non-finite as float'.
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!
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asShortFloat
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^ self class
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raise:#domainErrorSignal
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receiver:self
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selector:#asShortFloat
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arguments:#()
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errorString:'Cannot represent non-finite as float'.
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!
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coerce:aNumber
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^ aNumber asMetaNumber
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!
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generality
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"NaN, INF etc. are more general than scalars, but not more general than
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vectors (e.g. Points)"
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^ 105
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! !
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!MetaNumber class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libbasic/MetaNumber.st,v 1.1 2003-06-21 10:12:21 cg Exp $'
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! !
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