[Mono-bugs] [Bug 648828] New: Sorting arrays of unequal lengths causes unexpected exception

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https://bugzilla.novell.com/show_bug.cgi?id=648828

https://bugzilla.novell.com/show_bug.cgi?id=648828#c0


           Summary: Sorting arrays of unequal lengths causes unexpected
                    exception
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 2.8.x
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: System
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: anthony-b at railsimroutes.co.uk
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


There seems to have been a bug introduced between Mono 2.6 and Mono 2.8
concerning the sorting of arrays, likely in System or mscorlib (wherever
System.Array is implemented).

For example:

double[] a = new double[115];
int[] b = new int[256];
Array.Sort<double, int> (a, b, 0, 115);

In Mono 2.6 (and .NET 2.0), this works fine by accessing only the first 115
elements in each array (which exist in both). In Mono 2.8, however, an
exception is raised:

"Value does not fall within the expected range"

Likely, Mono tries to check the bounds of the arrays to see if they match, even
though there is no need, given the constraint of index and length in the
arguments. In fact, if the arrays are equal in size, the sort works without any
problem.

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