empty parameter pack not remembered when calling member ctor - by Bengt Gustafsson

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  Fixed<br /><br />
		This item has been fixed in the current or upcoming version of this product.<br /><br />
		A more detailed explanation for the resolution of this particular item may have been provided in the comments section.

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ID 780151 Comments
Status Closed Workarounds
Type Bug Repros 0
Opened 2/27/2013 1:40:04 PM
Access Restriction Public


In the Tuple ctor the tail can't be initialized according to the error message, which says that two parameters are sent, but as the parameter pack is empty there should be only one parameter in the call to the mTail ctor, the D2.

NOTE: By uncommenting line 1 a functioning version is enabled. But I'm not sure that this is valid C++11 even though it compiles. Both specializations should be eligible for the 1 parameter case. However, the compiler seems to prefer the one without a parameter pack. I don't know if this is according to the standard, I could not find any text about it. Can it be relied on to work on any compliant compiler?
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Posted by Microsoft on 4/29/2014 at 12:30 PM
Thank you for reporting this issue. This issue has been fixed in Visual Studio 2013. You can install a trial version of Visual Studio 2013 with the fix from: http://go.microsoft.com/?linkid=9832436
Posted by Microsoft on 3/11/2013 at 11:34 AM
Hi: this bug has been fixed. The fix will show up in the next release of Visual C++

Jonathan Caves
Visual C++ Compiler Team
Posted by Microsoft on 2/27/2013 at 6:03 PM
Thanks for your feedback.

We are rerouting this issue to the appropriate group within the Visual Studio Product Team for triage and resolution. These specialized experts will follow-up with your issue.
Posted by Microsoft on 2/27/2013 at 1:50 PM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(http://support.microsoft.com)