2004-05-18 Atsushi Enomoto <atsushi@ximian.com>

2004-05-18  Atsushi Enomoto  <atsushi@ximian.com>

	* SqlDecimal.cs :
	  - .ctor(double) initializes the precision as 17. If not sufficient,
	    it calls AdjustScale(), and if too much then it calls Round().
	  - Data should not return the internal array otherwise it might be
	    modified by outer code.
	  - Reimplemented AdjustScale() to work fine.
	  - Reimplemented Parse(). It should rather use Decimal.Parse()
	    rather than SqlDouble.Parse() for parsable value range difference.
	  - Reimplemented Round(). Don't use double.
	  - Fixed ToString() to return "Null" for null value.
	  - Fixed explicit let operator to use double .ctor, not decimal
	    .ctor() so that precision can be handled in the same way as double.

svn path=/trunk/mcs/; revision=27568