Visual Studio 2015

Welcome to the Visual Studio 2015 UserVoice site. This site is for suggestions and ideas for the IDE of Visual Studio (Community, Professional or Enterprise). You can also add suggestions for Team Services or Visual Studio Code. Or go to Connect to file a bug. Note that Application Insights has moved to its own UserVoice forum.

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  1. C++/CLI Intellisense support for triple slash (///) auto XML Comments like C# to make them visible from derived C# projects

    Add support for triple slash (///) xml comment like C# to have support for sandcastle auto generated documentation ad expecially to have full intellisense support for Parameters help and Methods help accessible from all c++/cli and c# derived project that use the c++/cli class and methods

    1,962 votes
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      1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
    • Switch to Clang

      Why?

      Because it compiles code faster on large code bases.
      Because it is more C++11 compliant.
      Because it will be updated with fixes in a timely manner.
      Because it will require less of your maintenance.
      Because you can contribute back to it to make it even better.
      Because you can build tools out of it like Intellisense, static analysis, etc.
      Because MSFT can focus on Visual Studio UI and other elements that make it a nice IDE.
      Because this is what C++ developers would prefer (non-biased opinion here :P ).
      Because code portability is important in this platform diverse world.

      585 votes
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        20 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
      • Support c++11 concurrency header files in c++/cli

        When using the /clr switch in VC++ 2012, it is not possible to include some of the new c++11 header files (i.e. <atomic> / <thread>) as compilation will break.

        One typical application of c++/cli is to wrap a native class inside a (managed) ref class to expose its functionality to the .net world.

        The restriction previously described prevents a ref calss to consume a native class with members like std::thread or std::atomic<T>.

        A workarround (pimpl-idiom) is discussed in this topic:
        (http://social.msdn.microsoft.com/Forums/en-US/vclanguage/thread/9771f61c-05b7-4e3e-96fb-ac9ea31ac3f4)

        The former approach requires to change existing code, therefore support for the new c++11 header files in…

        348 votes
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          6 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
        • C++ compiler should warn about wrong member initialization order

          Every few years this suggestion emerges and I think now is the time for next iteration.
          In C++ the order of class/struct member initialization is determined by the order of member declaration and not by the order of their appearance in member initialization list. It is therefore extremely easy to to write a code that is very hard to find, e.g.:

          struct S {
          int a;
          int b;

          S( int i ) : b(i), a(b+1) {}
          };

          int main()
          {
          S s(42);
          }

          and we have garbage in s.a what might be not obvious for a novice programmer.
          GCC issues…

          341 votes
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            5 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
          • Create a UTF8 C-runtime

            In the past few years I've worked on cross platform apps, mostly between Windows and linux. The biggest stumbling block are path and file names. In our latest project, it got so clunky, that we decided to drop all the UNICODE code compile the Windows side in MBCS. One thing that would help would be to have a C-runtime which works with UTF8 (also having one that drops the underscores would be another huge help.)

            323 votes
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              9 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
            • Allow precompiled headers to be shared between projects

              In Visual Studio 2008 and earlier, I believe you could (by an unsupported method) allow one project to generate a precompiled header which other projects could then use. But I understand this is not possible, or only works in limited ways in VS 2010 and later.

              Please add official support for allowing a precompiled header to be shared between projects.

              As a nice to have it would also be ideal if more than one precompiled header could be used by a project so that both a shared and project specific precompiled header could be used.

              See also:

              http://social.msdn.microsoft.com/Forums/vstudio/en-US/665d4183-f85c-481d-bada-03283b310099/shared-precompiled-header?forum=vclanguage

              http://stackoverflow.com/questions/14048212/can-i-share-a-precompiled-header-between-projects-to-reduce-compile-time

              308 votes
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                13 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
              • ISO C++ wrappers for WinRT

                Now that WinRT has been unveiled, a lot of people have criticized the C++/CLI-like quasi-C++ that is the recommended way to interface with the API. And honestly, it looks reasonably nice. If we're willing to give up all hopes of using another compiler than VC11, and don't mind non-standard code in our C++ application, it seem a nice way to interface with WinRT.

                But how about an alternative?

                How about offering a "best effort" library-only ISO C++ wrapper to make WinRT usage as simple as possible without relying on library extensions? It doesn't have to be as clean and pretty…

                274 votes
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                  6 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                • Stop treating workarounds as a legitimate alternative to standards compliance

                  Particularly in the world of C++, where the delta between what the compiler accepts and what the standard says is quite large, it is common for people to report bugs against the compiler.

                  Often, however, these are met with refusals to fix the compiler, and claims that there are workarounds.

                  I would love you to change this policy.

                  Yes, sometimes there is a zero cost workaround to a particular flaw. But that's not a reason to not fix the bug. I write code that I wish to compile in g++, VC++, and sometimes even clang++. Being forced to avoid standard…

                  242 votes
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                    6 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                  • make header include refactoring possible

                    Would be great to have a tool which will automatically remove unused headers. I a big projects (more than 1^6 LOC ) this becomes really both code and compile-time issue over the time.

                    Another idea is to move from precompiled header those header files which are used only once and move those used more than once into precompiled header. Ideally those thresholds are configurable.

                    239 votes
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                      under review  ·  3 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                    • Allow me to link Visual C++ filters to specific directories

                      Please give me a way to associate a directory for a given filter (ie folder) in VC++. The directory would be used as the default when I click on a filter and run the Add New wizard. This would help greatly on larger projects with elaborate directory structures.

                      Here is an example of how the current setup is maddening. Imagine I am working on something that has a directory structure like this

                      \Foo
                      \build
                      \msvc << VC++ files here
                      \brandX << build/make files for your competition
                      \include
                      \Algorithms
                      sort.h
                      \Collections
                      vector.h
                      \src
                      \Algorithms
                      sort.cpp
                      \Collections
                      vector.cpp

                      I can create Filters…

                      226 votes
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                        8 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                      • assembler

                        Make inline asm in x64-bit projects.

                        222 votes
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                          19 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                        • Add support for AVX-512 in MASM

                          Intel's roadmap shows AVX-512 will be available in Xeon soon. I could be developing and testing code now using Intel's emulator. This is very important for high performance computing.

                          189 votes
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                            1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                          • Support XAML+Native Code for desktop applications

                            Metro app developers got the gift of the ability to combine XAML with native code. Desktop developers (well, at least me) have wanted this for years and probably didn't ask because we figured there was no chance. Now developers of these little toy apps get this ability! This is a travesty. Desktop application developers need a modern framework (MFC is older than the internet, WPF is dead), and it should be native code (.NET is too slow). So please port the ability to use XAML and native code together over to the Win32 development platform.

                            170 votes
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                              11 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                            • Add a compiler warning for C-style casts in C++

                              Would it be possible to add a new compiler warning that informs the user when a C-style cast has been used in either native or managed C++?

                              Although I'm not too concerned with the casting of basic data types (such as float fValue = (float)nValue;) C-style casting of class pointers that may fall through to a reinterpret_cast<T> are particularly dangerous and also difficult to find in existing source code. A compiler warning would help developers identify such instances without resorting to regex searches across files. Generally speaking if something falls through to a reinterpret cast then it has probably gone…

                              146 votes
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                                4 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                              • Update your OpenMP support to OpenMP 3.1

                                I know this idea was declined in 2011 (when 3.1 came out). But now it's 2014. Microsoft Visual Studio STILL claims support for only OpenMP 2.0, which was released in 2002!
                                Times have changed. Just about every laptop has 4 cores/8 threads, current Xeon processors have 10 or 15 cores (each supporting 2 threads). It is very clear that software engineers need to express the parallelism that can be achieved, or they are leaving at least 75% (3 of the 4 cores) and possibly over 94% (14 of 15 cores) of their CPU's processing power untapped! OpenMP has advanced significantly…

                                134 votes
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                                  4 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                • Use UTF-8 by default for C++ source files

                                  .cpp and .h files should be saved in a modern encoding such as UTF-8 by default (and the compiler would have to be updated to handle UTF-8 input as well). The use of the windows-1252 codepage really feels like something out of the 1980's. The rest of the world uses Unicode. Heck, as far as I know, most other VS project types use it. Can we *please* get the same in Visual C++?

                                  127 votes
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                                    3 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Nested namespace declarations

                                    I suggest to extend syntax of nested namespace declarations and provide alternative way similar to one implemented in C#:

                                    namespace Outer::Inner // declares nested namespace
                                    {
                                    struct Foo
                                    {
                                    };
                                    }

                                    Outer::Inner::Foo foo;

                                    That would be useful for codebases with high usage of nested namespaces especially with level of depth 3 or more.

                                    112 votes
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                                      9 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Simplify C++ templates error messages

                                      Please simplify C++ templates error messages like STLFilt does.

                                      Things that can be hided:
                                      * Typedef's unrolling
                                      * Displaying template default arguments
                                      * The qualifiers "class", "struct", "__thiscall" and "__cdecl"
                                      * Shorter names for nested classes

                                      111 votes
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                                        1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Add lambda support to C++/CLI

                                        Lambda is now supported in C++ 0x but not in C++/CLI. It means we are not able to use C++ lambda to define delegates in ref class. This makes using .Net libraries like Task<T> and System::Linq a very tedious work.

                                        103 votes
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                                          4 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Add Emscripten/WebAssembly to platforms supported from VisualC++

                                          Much like support for iOS/Android (http://blogs.msdn.com/b/vcblog/archive/2015/07/30/cross-platform-code-sharing-with-visual-c.aspx). I'd love to add Emscripten build target for my application in Visual Studio 2015.

                                          80 votes
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                                            1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
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