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    6 Votes

    1 Solution

    Concurrency::concurrent_unordered_multimap has a critical bug

    #include <concurrent_unordered_map.h> #include <iostream> #include <unordered_map> struct myhash { s

    in C++ visual studio 2017 version 15.5   visual studio 2017 version 15.3   cppcompiler Under Investigation

    Baeby Seton solvedMar 29, '18

    3 Votes

    2 Solution

    compilation error C2057: "expected constant expression" after updating to msvc 14.13.26128

    The following code line: template class __declspec(dllexport) std::basic_string<char>; results in th

    in C++ cppcompiler Under Investigation

    Lucas Vogel commentedApr 11, '18

    2 Votes

    0 Solution

    [MSConnect 1179496] VC++ lrintf() is 376 times longer than gcc/clang version

    ----------------------- Problem Description ----------------------- On gcc/clang the lrintf function

    in C++ cppcompiler Under Consideration

    Eric Brumer [MSFT] commentedMar 5, '18

    2 Votes

    1 Solution

    Internal Compiler Errors on VS 15.5 64-bit involving SSE/AVX blend instructions

    Hi, Using _mm_blend_ps and/or _mm256_blend_ps seems to cause ICEs when also user-defining copy-const

    in C++ visual studio 2017 version 15.5   cppcompiler Fixed - Pending Release

    Leo Zhang [MSFT] commentedMar 16, '18

    2 Votes

    0 Solution

    __FILE__ macro should not change casing of file

    Right now whether __FILE__ macro returns the actual name (including casing), or lowercased name depe

    in C++ cppcompiler Under Investigation

    Leo Zhang [MSFT] commentedApr 2, '18

    2 Votes

    0 Solution

    Visual c++ 15.5.2 problem with clang 2 with header

    When included the header <exception> the compiler clang report the following error: 1>C:\Program Fil

    in C++ cppcompiler Under Consideration

    Brannon King commentedJan 13, '18

    2 Votes

    0 Solution

    Debugging native Android O app

    I use my own buildchain and build for Android O successfully;however I use the visual studio standar

    in C++ cppcompiler Triaged

    Daniel Dyre-Greensite editedyesterday

    2 Votes

    1 Solution

    ucrtbase's implementation of time() unnecessarily uses GetSystemTimePreciseAsFileTime

    When ucrtbase was introduced <https://blogs.msdn.microsoft.com/vcblog/2014/06/18/c-runtime-crt-featu

    in C++ C++   cppcompiler Under Investigation

    Juan Del Moral Gonzalez [MSFT] solvedApr 10, '18

    2 Votes

    0 Solution

    Internal compiler error using variadic templates (VS 15.5.2)

    The following code produces an internal compiler error:template<typename... P> class C1 { void U(P..

    in C++ cppcompiler Under Consideration

    Holger Strauss commentedJan 8, '18

    1 Votes

    1 Solution

    [Feedback] [MSConnect 3103802] Poor codegen without static on const char[]

    This item was filed by a customer. Please communicate and close the loop with your customer via the

    in C++ cppcompiler Under Investigation

    Rui Zhang [MSFT] solvedMar 3, '18

    1 Votes

    0 Solution

    ICE with /arch:AVX512 and no Whole Program Optimization (15.7 preview 3)

    On Visual Studio 2017 15.7.0 Preview 3.0, the following code will ICE when compiled with: x64 Releas

    in C++ visual studio 2017   cppcompiler Under Investigation

    Shanshan Chen [MSFT] commented6 days ago

    1 Votes

    0 Solution

    I export C++ the project into a template. The project created by this template is empty.

    You can reproduce this: create a new C ++ project (for example, a console application). Perform: Pro

    in C++ cppcompiler Under Investigation

    sulu clac editedApr 11, '18

    1 Votes

    0 Solution

    swprintf not working in c++ clr projects

    Create a new c++ clr console project, include stdio then: wchar_t buffer[1024]; swprintf(buffer, 102

    in C++ cppcompiler Under Investigation

    Claudiu Danila commentedFeb 9, '18

    1 Votes

    1 Solution

    VS 2017 15.6, cl 19.13.26128, now can't understand `decltype(*DeclVal T ())` where T is a raw pointer type

    Found when building Firefox after upgrading VS to 15.6. Details at: https://bugzilla.mozilla.org/sho

    in C++ cppcompiler   fixed in: visual studio 2017 version 15.7 preview 1 Fixed - Pending Release

    Blair Wang-MSFT commentedMar 14, '18

    1 Votes

    1 Solution

    C++ placement new is incorrectly compiled

    Hi, I've encoutered strange behavior of MSVC compiler, the details are below. The toolset version Mi

    in C++ cppcompiler Under Investigation

    Eldar Zakirov editedApr 9, '18

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