[squeak-dev] The Trunk: Kernel-ul.485.mcz
Nicolas Cellier
nicolas.cellier.aka.nice at gmail.com
Mon Aug 23 14:49:09 UTC 2010
Waouh!
I don't know how you could possibly find this one!
Chapeau bas
Nicolas
2010/8/23 <commits at source.squeak.org>:
> Levente Uzonyi uploaded a new version of Kernel to project The Trunk:
> http://source.squeak.org/trunk/Kernel-ul.485.mcz
>
> ==================== Summary ====================
>
> Name: Kernel-ul.485
> Author: ul
> Time: 23 August 2010, 2:13:52.357 pm
> UUID: fce08992-f821-ed46-a863-9935d6a7fe2e
> Ancestors: Kernel-dtl.484
>
> - fix LargeInteger printing
>
> =============== Diff against Kernel-dtl.484 ===============
>
> Item was changed:
> ----- Method: LargePositiveInteger>>printOn:base:nDigits: (in category 'printing') -----
> printOn: aStream base: b nDigits: n
> "Append a representation of this number in base b on aStream using n digits.
> In order to reduce cost of LargePositiveInteger ops, split the number of digts approximatily in two
> Should be invoked with: 0 <= self < (b raisedToInteger: n)"
>
> | halfPower half head tail |
> n <= 1 ifTrue: [
> n <= 0 ifTrue: [self error: 'Number of digits n should be > 0'].
>
> "Note: this is to stop an infinite loop if one ever attempts to print with a huge base
> This can happen because choice was to not hardcode any limit for base b
> We let Character>>#digitValue: fail"
> + ^aStream nextPut: (Character digitValue: self) ].
> - ^Character digitValue: self].
> halfPower := n bitShift: -1.
> half := b raisedToInteger: halfPower.
> head := self quo: half.
> tail := self - (head * half).
> head printOn: aStream base: b nDigits: n - halfPower.
> tail printOn: aStream base: b nDigits: halfPower!
>
>
>
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