[Mono-bugs] [Bug 640699] New: Mono 2.8 Preview 6: gmcs regression -- spurious CS0031 error

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Tue Sep 21 02:29:07 EDT 2010



           Summary: Mono 2.8 Preview 6: gmcs regression -- spurious CS0031
    Classification: Mono
           Product: Mono: Compilers
           Version: 2.8.x
          Platform: Macintosh
        OS/Version: Mac OS X 10.6
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: brian at sooloos.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US)
AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.25 Safari/534.3

brian at brianmbp ~ $ cat x.cs                                               [ 1 ]

public class Foo {
    public static void Main(string[] args) {
        byte b = 0;
        b |= 0;

brian at brianmbp ~ $ gmcs --version                                         [ 1 ]
Mono C# compiler version

brian at brianmbp ~ $ gmcs x.cs
x.cs(5,11): error CS0031: Constant value `0' cannot be converted to a `byte'
Compilation failed: 1 error(s), 0 warnings

This code compiles using 2.6.x with no errors. It also compiles with the
microsoft toolchain. Line 5 is "b |= 0;"

I installed mono using the binary x86 osx installer here:
http://mono.ximian.com/monobuild/preview/download-preview/. The git hash for
the version I grabbed (as reported on that URL) is 58f029f.

Reproducible: Always

Steps to Reproduce:
1. See above.
Actual Results:  
Compilation fails with CS0031

Expected Results:  
Compilation succeeds.

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