We just shipped Visual C++2013 last month, but I announced at GoingNative in September that there would be more soon: another CTP (compiler preview) containing another batch of C++11/14 features, sometime in the fourth quarter.
I’m happy to report that today we shipped the promised CTP. Compared to the “high probability in CTP” feature set I mentioned in my GoingNative talk, one of those features I mentioned didn’t quite make it (C++14 generalized lambda capture, a.k.a. move capture and more), but to compensate, both medium-probability features made it (C++14 generic lambdas and C++11 inheriting constructors) plus, as a bonus, also alignof and alignas which we didn’t think would make it for the CTP but did. Here’s the full set of new features, pasting from the announcement:
- Implicit move special member function generation (thus also completing =default)
- Reference qualifiers on member functions (a.k.a. “& and && for *this“)
- Thread-safe function local static initialization (a.k.a. “magic statics”)
- Inheriting constructors
- Extended sizeof
- constexpr (except for member functions)
- noexcept (unconditional)
- C++14 decltype(auto)
- C++14 auto function return type deduction
- C++14 generic lambdas (with explicit lambda capture list)
- (Proposed for C++17) Resumable functions and await
The most-requested feature of C++14, and the one I’ve personally been anticipating the most, is generic lambdas — it is sweet to see it working right within Visual Studio 2013, as the CTP installs as a selectable toolset you can use within the shipping product to edit and build (no Intellisense or red squiggles though). Note that for this CTP, your lambda can be either generic (have an auto parameter type) or have a default capture list (e.g., [=] or [&]), but not both — of course we’ll support both together in the future as the feature makes a future release.
As far as I know, this Visual C++ CTP is the first shipping (albeit CTP quality) C++ compiler to offer generic lambdas, though I expect Clang and gcc to also make them available soon — joy for C++ developers everywhere!
Once again, thank you very much again to the great Visual C++ team for producing this CTP; even as we speak, they’re hard at work on more. Thanks again also to the other members of the ISO C++ committee for producing a great and high-quality C++11 and soon-to-be-not-draft C++14.
I hope you enjoy trying out this CTP.