Author: spouliot
Date: 2008-02-08 11:39:59 -0500 (Fri, 08 Feb 2008)
New Revision: 95273
Modified:
trunk/mcs/class/corlib/System/ChangeLog
trunk/mcs/class/corlib/System/Random.cs
Log:
2008-02-08 Sebastien Pouliot <[EMAIL PROTECTED]>
* Random.cs: Explain (and extend) special case in Next(min,max)
Modified: trunk/mcs/class/corlib/System/ChangeLog
===================================================================
--- trunk/mcs/class/corlib/System/ChangeLog 2008-02-08 16:29:03 UTC (rev
95272)
+++ trunk/mcs/class/corlib/System/ChangeLog 2008-02-08 16:39:59 UTC (rev
95273)
@@ -1,3 +1,7 @@
+2008-02-08 Sebastien Pouliot <[EMAIL PROTECTED]>
+
+ * Random.cs: Explain (and extend) special case in Next(min,max)
+
2008-02-08 Juraj Skripsky <[EMAIL PROTECTED]>
* Random.cs (Next): Use rounding (via implicit conversion) only on
Modified: trunk/mcs/class/corlib/System/Random.cs
===================================================================
--- trunk/mcs/class/corlib/System/Random.cs 2008-02-08 16:29:03 UTC (rev
95272)
+++ trunk/mcs/class/corlib/System/Random.cs 2008-02-08 16:39:59 UTC (rev
95273)
@@ -118,8 +118,10 @@
throw new ArgumentOutOfRangeException
(Locale.GetText (
"Min value is greater than max
value."));
- uint diff = (uint)(maxValue - minValue);
- if (diff == 0)
+ // special case: a difference of one (or less) will
always return the minimum
+ // e.g. -1,-1 or -1,0 will always return -1
+ uint diff = (uint) (maxValue - minValue);
+ if (diff <= 1)
return minValue;
return (int)(Sample () * diff) + minValue;
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