ZeroDivide.st
author Merge Script
Mon, 08 Jun 2015 06:58:54 +0200
branchjv
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"
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 COPYRIGHT (c) 2001 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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DomainError subclass:#ZeroDivide
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	instanceVariableNames:''
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	classVariableNames:''
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	poolDictionaries:''
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	category:'Kernel-Exceptions-Errors'
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!
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!ZeroDivide class methodsFor:'documentation'!
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copyright
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"
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 COPYRIGHT (c) 2001 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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    Raised when a division by zero is attempted.
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"
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!
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examples
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"
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    the following leads into a debugger:
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                                                                    [exBegin]
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        |divisor|
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        divisor := 0.
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        Transcript showCR: ( 5 / divisor ).
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                                                                    [exEnd]
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    the following does NOT lead into a debugger:
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                                                                    [exBegin]
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        |divisor|
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        divisor := 0.
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        [
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            Transcript showCR: ( 5 / divisor ).
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        ] on:ZeroDivide do:[
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            Transcript flash.
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        ]
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                                                                    [exEnd]
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"
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! !
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!ZeroDivide class methodsFor:'initialization'!
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initialize
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    NotifierString := 'division by zero'.
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! !
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!ZeroDivide methodsFor:'accessing'!
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defaultResumeValue
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    "no, we return infinity here, if ever proceeded"
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    ^ parameter receiver class infinity
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    "
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     |a b|
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     a := 5.
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     b := 0.
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     ZeroDivide handle:[:ex |
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        Transcript showCR:('division by zero - dividend was: ' , ex dividend printString).
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        ex proceed
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     ] do:[
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        a / b
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     ]            
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    "
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    "
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     |a b|
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     a := 5.0.
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     b := 0.0.
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     ZeroDivide handle:[:ex |
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        Transcript showCR:('division by zero - dividend was: ' , ex dividend printString).
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        ex proceed
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     ] do:[
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        a / b
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     ]            
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    "
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!
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dividend
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    "Return the number that was being divided by zero."
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    ^ parameter receiver
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    "
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     |a b|
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     a := 5.
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     b := 0.
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     Integer divisionByZeroSignal handle:[:ex |
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        Transcript showCR:('division by zero - dividend was: ' , ex dividend printString)
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     ] do:[
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        a // b
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     ]
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    "
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! !
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!ZeroDivide class methodsFor:'documentation'!
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version
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    ^ '$Header: /cvs/stx/stx/libbasic/ZeroDivide.st,v 1.8 2013-01-25 17:19:34 cg Exp $'
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!
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version_SVN
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    ^ '$Id: ZeroDivide.st 10761 2012-01-19 11:46:00Z vranyj1 $'
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! !
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ZeroDivide initialize!