System.Numerics.Tensors Inconsistent TryFlattenTo & TryBroadcastTo vs TryCopyTo

[soerenwolfers]

Description

TryFlattenTo and TryBroadcastTo throw when destination is too short, TryCopyTo returns false.

Reproduction Steps

using System.Diagnostics.CodeAnalysis;
using System.Numerics.Tensors;

namespace ConsoleApp1;

public abstract class Program
{
	[Experimental("SYSLIB5001")]
	public static void Main()
	{

		new TensorSpan<double>(new double[1]).TryCopyTo(Array.Empty<double>());
		new TensorSpan<double>(new double[1]).TryFlattenTo(Array.Empty<double>());
	}
}

Expected behavior

Return false; never throw.

Actual behavior

ArgumentException

Regression?

No response

Known Workarounds

No response

Configuration

.Net8, Ubuntu22, x64

Other information

No response

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[jeffhandley]

This was fixed by @michaelgsharp in #107852 and backported to .NET 9 in #108282.