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<TITLE> [Mono-bugs] [Bug 471275] Internal compiler error -> System.OverflowException: Value is greater than Int64.MaxValue
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<H1>[Mono-bugs] [Bug 471275] Internal compiler error -> System.OverflowException: Value is greater than Int64.MaxValue</H1>
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<B>bugzilla_noreply at novell.com</B>
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<A HREF="mailto:mono-bugs%40lists.ximian.com?Subject=%5BMono-bugs%5D%20%5BBug%20471275%5D%20Internal%20compiler%20error%20-%3E%0A%20System.OverflowException%3A%20Value%20is%20greater%20than%20Int64.MaxValue&In-Reply-To=bug-471275-28286%40https.bugzilla.novell.com/"
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TITLE="[Mono-bugs] [Bug 471275] Internal compiler error -> System.OverflowException: Value is greater than Int64.MaxValue">bugzilla_noreply at novell.com
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</A><BR>
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<I>Sun Feb 1 16:07:23 EST 2009</I>
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<PRE><A HREF="https://bugzilla.novell.com/show_bug.cgi?id=471275">https://bugzilla.novell.com/show_bug.cgi?id=471275</A>
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User <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">andyhume32 at yahoo.co.uk</A> added comment
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<A HREF="https://bugzilla.novell.com/show_bug.cgi?id=471275#c2">https://bugzilla.novell.com/show_bug.cgi?id=471275#c2</A>
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Andy Hume <<A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">andyhume32 at yahoo.co.uk</A>> changed:
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What |Removed |Added
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----------------------------------------------------------------------------
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CC| |<A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">andyhume32 at yahoo.co.uk</A>
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--- Comment #2 from Andy Hume <<A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">andyhume32 at yahoo.co.uk</A>> 2009-02-01 14:07:22 MST ---
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Orthogal to the reported problem, and I'm sure you'd have discovered it once
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the compile was working, but you need some more casts in Lookup(ushort, ushort,
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ushort, ushort). All the shifts are done on Int32 (the narrowest defined shift
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operator), so you don't get the answers you wanted! See the sample below, and
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see e.g. <A HREF="http://www.jaggersoft.com/csharp_standard/14.8.htm">http://www.jaggersoft.com/csharp_standard/14.8.htm</A> for the reasons --
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including why deviceID is shifted by 0 bits!!
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using System;
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class LeftShifting {
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static void Main()
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{
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Lookup(1, 2, 3, 4);
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LookupB(1, 2, 3, 4);
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}
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public static string Lookup(ushort vendorID, ushort deviceID, ushort
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subSystem, ushort subVendor)
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{
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ulong x = ((ulong)((vendorID << 48) | (deviceID << 32) | (subSystem <<
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16) | subVendor));
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string s = string.Format("Lookup4 x: 0x{0:X16}", x);
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Console.WriteLine(s);
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return s;
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}
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public static string LookupB(ushort vendorID, ushort deviceID, ushort
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subSystem, ushort subVendor)
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{
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ulong x = ((((ulong)vendorID << 48) | ((ulong)deviceID << 32) |
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((ulong)subSystem << 16) | subVendor));
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string s = string.Format("Lookup4b x: 0x{0:X16}", x);
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Console.WriteLine(s);
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return s;
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}
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}
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--
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------- You are receiving this mail because: -------
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You are the QA contact for the bug.
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You are the assignee for the bug.
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</PRE>
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