Bug 413414

Summary:	gmcs doesn't special case Nullable<> constraints
Product:	[Mono] Mono: Compilers	Reporter:	Rodrigo Kumpera <rkumpera>
Component:	C#	Assignee:	Mono Bugs <mono-bugs>
Status:	RESOLVED DUPLICATE	QA Contact:	Mono Bugs <mono-bugs>
Severity:	Minor
Priority:	P5 - None
Version:	SVN
Target Milestone:	---
Hardware:	Other
OS:	Other
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Rodrigo Kumpera 2008-07-30 22:05:57 UTC

Under MS, Nullable<> is declared as: "Nullable<T> where T: struct, new()".

This construct is not allowed for regular C# code, but it happens to work for Nullable.

This property might be verified by running the following program under MS and mono:

using System;
class Driver
{
	public static void Main ()
	{
		Console.WriteLine (typeof (Nullable<>).GetGenericArguments()[0].GenericParameterAttributes);
	}
}


MS reports: 
NotNullableValueTypeConstraint, DefaultConstructorConstraint

Mono reports:
NotNullableValueTypeConstraint


This is not a SRE issue as the API allows for such constraints to be defined.

Comment 1 Marek Safar 2008-09-19 15:11:32 UTC


*** This bug has been marked as a duplicate of bug 416110 ***