Did Visual Studio 2015 Update 3 Break Constructor Attributes?

Question

In VS2015u2 the following code compiled fine.

class Foo {
public:
   [[deprecated]] Foo(std::string);
   Foo();
};

Under VS2015u3, I am getting an error:

C2416: attribute 'deprecated' cannot be applied in this context

This works in GCC 5.2 and it worked in earlier versions of VS2015. Granted, the deprecated attribute did not actually trigger a warning in VS2015, but that was not a significant concern.

Am I misunderstanding how to apply attributes to constructors? Or is VS2015u3 broken in this regard?

ildjarn · Accepted Answer · 2016-07-14 16:40:30Z

5

To put it shortly: Yes.

This is a bug wherein deprecated is allowed to be applied to the definition, but not to the declaration, of a constructor (other member functions seem fine). E.g. the following compiles cleanly, and unlike with Update 2, behaves correctly (yielding a C4996 diagnostic):

class Foo {
public:
    [[deprecated]] Foo(std::string) { }
    Foo() { }
};

Please submit a bug report to MS Connect and post back here with a link so that we may upvote it. :-]

edited Jul 14, 2016 at 16:40

answered Jul 14, 2016 at 16:34

ildjarn

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1 Comment

Colorado.Rob Over a year ago

Thanks for the confirmation and added detail. Bug report here: connect.microsoft.com/VisualStudio/feedback/details/2931827

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