https://bugzilla.novell.com/show_bug.cgi?id=389138
Summary: C# compiler code fails when running under .NET Framework
Product: Mono: Compilers
Version: 1.9.0
Platform: x86
OS/Version: Windows Vista
Status: NEW
Severity: Major
Priority: P5 - None
Component: C#
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
QAContact: [email protected]
Found By: Other
support.cs, line 385
CharArrayHashtable.GetHash(object key)
throws an OverflowException when called from Tokenizer.InitTokens method with
parameters "abstract", Token.ABSTRACT (cs-tokenizer.cs line 303).
I am using the project **gmcs.csproj** to build the Mono C# compiler.
The cause of failure is overflow when calculating the hash. The simplest way to
fix is to add 'unchecked' keyword to line 385 of support.cs:
protected override int GetHash (Object key)
{
char[] arr = (char[])key;
int h = 0;
for (int i = 0; i < len; ++i)
h = unchecked((h << 5) - h + arr [i]);
return h;
}
I think the difference between Microsoft's .NET and Mono here is the defaulting
to unchecked in Mono. Nevertheless, for a compatibility it should default to
same. But for a quick fix, explicit 'unchecked' keyword can be used to satisfy
both worlds.
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