[Mono-list] System.ArgIterator

[Jeroen Frijters]

You use the arglist CIL instruction to create a RunTimeArgumentHandle.

Microsoft's C# compiler has (undocumented) support for this.

	static int AddABunchOfInts1( __arglist ) 
	{ 
		int result = 0; 
		System.ArgIterator iter = new System.ArgIterator(
__arglist ); 
		int argCount = iter.GetRemainingCount(); 
		for( int i = 0; i < argCount; i++ ) 
		{ 
			System.TypedReference typedRef =
iter.GetNextArg(); 
			result += __refvalue(typedRef, int);
		} 
		return result; 
	}

And you call a vararg method using:
	AddABunchOfInts1(__arglist(2, 3, 4));

Regards,
Jeroen

> -----Original Message-----
> From: mono-list-admin@ximian.com 
> [mailto:mono-list-admin@ximian.com] On Behalf Of Duco Fijma
> Sent: Tuesday, February 26, 2002 00:13
> To: mono-list@ximian.com
> Subject: [Mono-list] System.ArgIterator
> 
> 
> Hi,
> 
> The documentation of the -yet unimplemented- class 
> System.ArgIterator looks deceptively simple. It does iterate 
> a variable argument list. But how is it supposed to do this? 
> There seems to be some (InternalCall??) magic behind it. The 
> .NET FrameWork does not state how the arguments to the 
> constructors are to be interpreted. The first parameter of 
> each of the two constructors of ArgIterator is even of a type
> (RunTimeArgumentHandle) without any documented members.
> 
> Duco
> 
> 
> 
> 
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