Bug 15315 - Mono MCS rejects "&= 0x0000" with LHS of "ushort"
Summary: Mono MCS rejects "&= 0x0000" with LHS of "ushort"
Status: RESOLVED FIXED
Alias: None
Product: Compilers
Classification: Mono
Component: C# ()
Version: unspecified
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Marek Safar
URL:
Depends on:
Blocks:
 
Reported: 2013-10-09 18:26 UTC by Brett van Swelm
Modified: 2013-10-10 10:10 UTC (History)
1 user (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description Brett van Swelm 2013-10-09 18:26:52 UTC
With "D:\Applications\Mono-2.11.4\bin" and "C:\Windows\Microsoft.NET\Framework\v4.0.30319" in the path on my Windows 7 machine:

===== Test.cs =====
public class Test
{
    public void TestMethod(ushort myParameter)
    {
        myParameter =  0x0000;
        myParameter |= 0x0000;
        myParameter &= 0x0000; // Issue here.
        myParameter &= myField; // Issue here.
    }

    public const ushort myField = 0x0000;
    
    public static void Main() {}
}
===== end =====

$ csc Test.cs
Microsoft (R) Visual C# Compiler version 4.0.30319.17929
for Microsoft (R) .NET Framework 4.5
Copyright (C) Microsoft Corporation. All rights reserved.

$ mcs Test.cs
Test.cs(7,24): error CS0031: Constant value `0' cannot be converted to a `ushort'
Test.cs(8,24): error CS0266: Cannot implicitly convert type `ushort [mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]' to `ushort [mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]'. An explicit conversion exists (are you missing a cast?)
Compilation failed: 2 error(s), 0 warnings

Thanks,

Brett van Swelm | Senior Engineer
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Comment 1 Marek Safar 2013-10-10 10:10:50 UTC
Fixed in master