Generate delegate to get pointer to fixed buffer field of a struct. Use with extreme caution: http://msdn.microsoft.com/en-us/library/zycewsya.aspx

GetFixedBufferPointer.cs

public unsafe static class FieldPointer
{
	public delegate void Get<TItem, TPtr>(ref TItem item, out TPtr* ptr)
		where TItem : struct;
	
	public static Get<TItem, TPtr> Generate<TItem, TPtr>(FieldInfo field) 
		where TItem : struct
	{
		var fixedElementField = field.FieldType.GetField("FixedElementField");
		
		var dm = new DynamicMethod(
			String.Format("GetFieldPointer_{0}_{1}", typeof(TItem).Name, field.Name),
			typeof(void),
			new[] { typeof(TItem).MakeByRefType(), typeof(TPtr).MakePointerType().MakeByRefType() },
			typeof(FieldPointer).Module,
			true);
		
		var il = dm.GetILGenerator();
		
		// push for later - used with Stind_I
		il.Emit(OpCodes.Ldarg_1);

		// push the instance, get the field address(es)
		il.Emit(OpCodes.Ldarg_0);
		il.Emit(OpCodes.Ldflda, field);
		il.Emit(OpCodes.Ldflda, fixedElementField);

		// convert address
		il.Emit(OpCodes.Conv_I);

		// store in arg_1
		il.Emit(OpCodes.Stind_I);

		// return
		il.Emit(OpCodes.Ret);
	
		
		return (Get<TItem, TPtr>)dm.CreateDelegate(typeof(Get<TItem, TPtr>));
	}
}