[FIX][BUG] Conversion of String to Number don't check negatives ( [cd][er][su][et][sm] resubmit )

Mon Oct 4 17:46:31 UTC 2004

"Change Set:		abstractStringAsUnsignedInteger-brp
Date:			4 October 2004
Author:		Brent Pinkney

Refactor AbstractString>>#asUnsignedInteger.

Update 6286 AbstractStringAsIntegerTweak-laza fixes String>>#asInteger.
The implementation can be improved.

The logic in AbstractString>>#asUnsignedInteger is essentially
duplicated in as#Integer.

An unsigned integer is merely the absolute value of a signed integer.

Passes all tests in MultiStringTest

Hence:

asUnsignedInteger
	^ self asSignedInteger
		ifNotNilDo: [:i | i abs]

"
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