Visual Studio 2015

Welcome to the Visual Studio UserVoice site. Let us know what you would like to see in future versions of the Visual Studio suite of products. This site is for suggestions and ideas. If you need to file a bug, you can visit our Developer Community website to get started. 

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  1. Add AddressSanitizer a la Clang.

    Basically instrument allocations, reads and writes to catch memory scribbles at word granularity.

    69 votes
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      6 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
    • support compiling with "utf-8 without bom".

      I am in trouble when developing, because there are many tools that do not support the bom.

      I would be grateful, if you could add the compiler option that you can set default language which used in compiling.

      66 votes
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        1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
      • Improve CMake support & integration

        In general, I'd like to see improved CMake support (e.g. Edit & Continue doesn't work out of the box, profiling in x64 requires adjustments, ...) for C++ projects. Also integration with CTest could be improved.

        I would also very much like to be able to create the new VS2015 Android project in CMake, generate a VS solution file and then build & debug it, instead of only using a sln.

        Only like that the code can be fully cross-platform compatible!

        59 votes
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          1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
        • Official opening of WTL support

          Total is well known, WTL based on ATL, it was an excellent Win32 application development framework. Relative to the MFC,WTL a more lightweight, high efficiency, the links generated by the small size of the program. My only regret is that while WTL is initially within Visual Studio release, WTL is not supported by the Visual Studio official. I think, Microsoft to retain developer, especially C++ developer, in UI framework Shang does needs efforts, MFC bloated and old, ATL does not too for GUI program, pure SDK of program complex degrees too high, most manufacturers in using Visual Studio using C++…

          58 votes
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            3 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
          • Improve IntelliSense tooltip for make_shared/make_unique/emplace_back/etc

            With the new C++11/14 support, and use of all the perfect forwarding functions, the tooltip with help for parameters to functions have gone lost. Normally while writing a call to a constructor, you would get to see what parameters it takes, and what type they are, etc. Now all you get is an info saying "_Types &&... _Args", or so. IntelliSense should really either have an internal list of functions to treat special, or even better, have a pragma, attribute, or special comment that can be placed at a function to mark it as a perfect forwarding proxy. Maybe something…

            57 votes
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              1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
            • Improve MFC - add a VisualManager (CMFCVisualManagerWindows) for Windows 8 / 10

              All developers in the world programming for Windows 8 / 10 with MFC need the new visual style / theme for the dialogs / application / windows / controls / a.s.o. Please add the urgent needed file(s) to the Visual Studio 2015 Update 2.

              51 votes
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                2 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
              • Have C++ IntelliSense parser support GCC extensions, MinGW, and Cygwin toolchains

                The IntelliSense parser for Visual C++ is separate from MSVC compiler, and will throw out IntelliSense errors that may or may not be accurate with actual C/C++ code errors.

                This is very annoying when it comes to IntelliSense parsing GCC standard headers and libraries for MinGW and Cygwin toolchains, when we are using Visual Studio 2015 for Makefile projects.

                Most of the time, IntelliSense will give 1,200+ errors related to not being able to understand GCC extensions, or GCC-specific codes for MinGW and Cygwin toolchains.

                I am suggesting to the team to find ways to improve IntelliSense C++ parsing so…

                48 votes
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                  1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                • Add std::decimal with ISO/IEC TR 24733 decimal floating-point arithmetic

                  The document ISO/IEC TR 24733 specifies extension for the programming language C++ to support decimal floating-point arithmetic. Namely, it defines new type std::decimal.

                  It would be very helpful to have this type provided by the C++ Standard Library shipped with Visual C++.

                  libstdc++ already defines std::decimal:
                  http://gcc.gnu.org/onlinedocs/libstdc++/libstdc++-api-4.5/a01127.html

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

                    There are technical specifications for Decimal Floating Point:

                    JTC 1.22.24733 Information Technology – Programming Languages Technical
                    Report of Type 2 on Extensions for the programming language C++ to support
                    decimal floating point arithmetic

                    We will take this under review.

                    Eric
                    C++ Team

                  • Support c++11 unique_ptr and shared_ptr with C++/CLI

                    C++11 introduced move and unique_ptr, shared_ptr and weak_ptr. This new types highly improve the productivity and the robustness of C++ code. When we implement wrapper/adapter for the new for C++ code that uses unique_ptr/shared_ptr/weak_ptr we have to somehow return to raw pointers because it is only possible to store raw pointers inside of managed classes.
                    When it is not possible to somehow allow unique_ptr/shared_ptr/weak_ptr as members of managed C++/CLI classes (ref class/struct) my suggestion is to use a similar approach as with gcroot and to provide a wrapper for that pointer types.

                    40 votes
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                      4 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                    • C++ code map

                      Add support for C++ code maps!

                      40 votes
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                        4 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                      • Add IntelliTest for C++ native apps

                        I just saw in the VS2015 launch video how IntelliTest works for C# and I would love to see similar functionality for native desktop C++ apps.

                        With tools available like libFuzz from the LLVM project, this would actually hopefully not be as hard as it sounds to add at first glance.

                        Add IntelliTest for C++ native apps

                        36 votes
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                          1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                        • Have a version of Windows.h that doesn't define macros

                          From time to time I run into a collision between code and macros defined in Windows.h. The macros cause unintentional expansion of parts of my code or third party code and when they do waste a lot of time in trying to find workarounds.

                          Please introduce a WindowsWithoutMacros.h that defines the Win32 API, but uses proper C++ functions instead of macros. I'm sure for all the functions ending XXXW or XXXA some inline functions could wrap the dispatching.... well, I'll leave the implementation to you. There must be better ways than the current macro mess.

                          30 votes
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                            4 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                          • add a cl.exe option for system headers like gcc's -isystem

                            msvc is the only reason we have to clutter our code with
                            #ifdef _MSC_VER
                            #pragma warning(push, 0)
                            #endif

                            blocks.

                            29 votes
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                              1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                            • to rewrite VS and Windows SDK header files appropriately so they don't produce humongous amount of warnings during compilation with /Wall

                              Whoever is responsible for writing, modifying VS and Windows SDK header files should make appropriate corrections in the code they contain so the header files adhere to good coding practices and therefore compile smoothly. The number of warnings these header files produce during compilation is extremely alarming and it explicitly forces user-code to be clumsy-written. When would we, the users, finally be able to write warning-free code as good coding-practices suggest in about every C++ programming course book on the market? What we have now just doesn't make any sense. Please correct this hideousness and embarrassment ASAP. Thanks.

                              28 votes
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                                1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                              • Include what you use

                                https://code.google.com/p/include-what-you-use/
                                Can we have something like this CLang based tool which will remove unnecessary includes?

                                28 votes
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                                  1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                • Reconsider position on c99/11

                                  This has been declined before. However, I feel that Microsoft should look at this again to be more in parity with other operating systems.
                                  A lot of C code is still in use in many places for numerical code. These libraries also tend to be unix only making windows a second class citizen.

                                  Consider that gcc and clang, available on Linux and OSX, both provide a competitive c++ compiler as well as a c compiler. This puts windows developers for numeric tools at a disadvantage if they want to stick to using VS. ICC is available at an expense but…

                                  28 votes
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                                    1 comment  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                  • do not remove /clr:pure and /clr:safe from C++/CLI

                                    According to http://blogs.msdn.com/b/vcblog/archive/2014/06/13/compiler-switch-deprecation-removal-changes-in-visual-studio-14.aspx C++/CLI options /clr:pure and /clr:safe are being deprecated and will be removed in a future version of C++/CLI. That way it will no longer be possible to author pure managed libraries in C++/CLI which used to be useful to author constructs that were not possible in C# or VB. The suggestion to port the code to C# is quite silly because the reason why the code is in C++/CLI is usually that C# (or VB) cannot generate such code. Being forced to produce only mixed-mode assemblies limits portability of such assemblies and also their acceptance in some…

                                    26 votes
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                                      2 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Add std::optional since it has been voted into the standard

                                      Why do I need to use boost just to get optional, when it has been voted into the standard?

                                      26 votes
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                                        0 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Implement more C++ TS (Filesystem is great!, now Concepts!!) You get the edge over gcc and clang

                                        Technical specifications greatly improve c++ usability. Filesystem is amazing. You can surpass gcc and clang in implementation.
                                        C++ needs a bigger and bigger library

                                        22 votes
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                                          0 comments  ·  Languages - C++  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Add freestanding compilation mode

                                          Compiler generates implict calls to CRT (this includes C library calls like memcpy or memset but also compiler specific helpers like lldiv, llrem, llshl and friends). This is a request for a freestanding mode of compilation where compiler does not generate implict calls to CRT.

                                          Alternative solution could be to make the implictly used portion of CRT a separate, self-contained library released under more permissive license or clearly document the required calls.

                                          Lack of this feature makes it particularly hard to build a BIOS, embedded application or unikernel using Visual Studio compiler.

                                          While this may not be simple for C++…

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