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The C Users' Group Library 1994 August
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wc-cdrom-cusersgrouplibrary-1994-08.iso
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vol_200
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232_01
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array.st
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1987-06-17
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768b
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32 lines
Class Array :ArrayedCollection
[
new: aValue
^ <NewArray aValue>
|
at: aNumber
( (aNumber < 1) or: [aNumber > <Size self> ] )
ifTrue: [ self error: 'index error'. ^nil ].
^ <At self aNumber >
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at: aNumber put: aValue
( (aNumber < 1) or: [aNumber > <Size self> ] )
ifTrue: [ self error: 'index error'. ^nil ].
<AtPut self aNumber aValue >.
^ aValue
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grow: newObject
^ <Grow self newObject>
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printString | value i |
value <- ')'.
i <- <Size self>.
[i > 0] whileTrue:
[ value <- <At self i> printString ,
' ', value.
i <- i - 1].
^ '#( ' , value
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size
^ <Size self>
]