Black Lives Matter.
This site uses cookies for analytics, personalized content and ads. By continuing to browse this site, you agree to this use. Learn more
Skip to main content
Microsoft
Visual Studio
Visual Studio
  • Home
    • Problems
    • Suggestions
  • Downloads
    • Visual Studio IDE
    • Visual Studio Code
    • Azure DevOps
    • Team Foundation Server
    • Accounts and Subscriptions
  • Subscriber Access
      • Microsoft 365
      • Azure
      • Office 365
      • Dynamics 365
      • SQL
      • Windows 10
      • Windows Server
      • Enterprise Mobility + Security
      • Power BI
      • Teams
      • Visual Studio
      • Microsoft Advertising
      • AI
      • Internet of Things
      • Azure Cognitive Services
      • Quantum
      • Microsoft HoloLens
      • Mixed Reality
      • Docs
      • TechNet
      • Developer Network
      • Windows Dev Center
      • Windows IT Pro Center
      • FastTrack
      • Partner Network
      • Solution Providers
      • Partner Center
      • Cloud Hosting
      • Education
      • Financial services
      • Government
      • Health
      • Manufacturing & resources
      • Retail
      • Security
      • Licensing
      • AppSource
      • Azure Marketplace
      • Events
      • Research
    • View Sitemap
    Sign in

    Developer Community
    Get help from our community supported forum
    • Home /
    • C++ /
    Searched and didn’t find your feedback?
    • Visual Studio
    • Visual Studio for Mac
    • .NET
    • C++
    • Azure DevOps
    • Azure DevOps Server (TFS)
    or
    • Visual Studio
    • Visual Studio for Mac
    • .NET
    • C++
    • Azure DevOps
    • Azure DevOps Server (TFS)
    Visual Studio
    Visual Studio for Mac
    .NET
    C++
    Azure DevOps
    Azure DevOps Server (TFS)
    2

    Possible bad codegen on union/bitfield assignment in VS2017 15.8

    cppcompilerFixed In: Visual Studio 2017 version 15.9.4

    avatar image François-Xavier Roure reported Oct 30, 2018 at 12:47 PM

    Show comments 7
    This issue is read only, because it has been in Closed–Fixed state for over 90 days. It was closed for 581 days.

    Add comment

    n/a
    10 |40000 characters needed characters left characters exceeded
    avatar image Roger Andrews Oct 30, 2018 at 03:52 PM
    0
    • Share
    avatar image Karen Huang [MSFT] Oct 31, 2018 at 03:21 AM
    0
    • Share
    avatar image Pratap Chandar [MSFT] Nov 06, 2018 at 02:08 AM
    0
    • Share
    avatar image François-Xavier Roure Nov 16, 2018 at 01:58 PM Pratap Chandar [MSFT]
    0
    • Share
    avatar image Pratap Chandar [MSFT] Nov 16, 2018 at 06:24 PM François-Xavier Roure
    0
    • Share
    avatar image Александр Викторович Шишковцов Nov 22, 2018 at 12:39 PM Pratap Chandar [MSFT]
    0
    • Share
    avatar image Quella Zhang [MSFT] Dec 08, 2018 at 03:56 AM
    0
    • Share
    thub.nodes.view.add-new-comment
    Comments are read only

    Solutions

    Solution

    by Blair Wang [MSFT]    Dec 12, 2018 at 01:46 AM
    avatar image
    0
    Show comments 0 Share

    Add comment

    10 |40000 characters needed characters left characters exceeded
    thub.nodes.view.add-new-comment
    Comments are read only
    Solutions are read only
    Follow

    Related Problems

    Strange compiler error due to ambiguous call to overloaded function
    2 Solution

    Just Insert a useless line is right in VS2017!!!
    0 Solution

    Problem with Visual Studio 2017 and variadic template unpack token
    1 Solution

    Unable to Sign-in into VS2017 Community. The sign-in window is empty
    0 Solution

    File Specified not found.
    1 Solution

    MSC >= 19.12.25830.2: Cannot use temporary lambda as predicate to count_if, find_if etc.
    0 Solution

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

    MSVC 15.5.2: Incorrect assembly generated when optimizations enabled
    1 Solution

    VS2017 C++ WinUSB template build Error MSB3721
    1 Solution

    INTERNAL COMPILER ERROR vc 2017 15.5.2
    1 Solution

    What's new
    • Surface Pro X
    • Surface Laptop 3
    • Surface Pro 7
    • Windows 10 apps
    • Office apps
    Microsoft Store
    • Account profile
    • Download Center
    • Microsoft Store support
    • Returns
    • Order tracking
    • Store locations
    • Buy online, pick up in store
    • In-store events
    Education
    • Microsoft in education
    • Office for students
    • Office 365 for schools
    • Deals for students & parents
    • Microsoft Azure in education
    Enterprise
    • Azure
    • AppSource
    • Automotive
    • Government
    • Healthcare
    • Manufacturing
    • Financial services
    • Retail
    Developer
    • Microsoft Visual Studio
    • Windows Dev Center
    • Developer Network
    • TechNet
    • Microsoft developer program
    • Channel 9
    • Office Dev Center
    • Microsoft Garage
    Company
    • Careers
    • About Microsoft
    • Company news
    • Privacy at Microsoft
    • Investors
    • Diversity and inclusion
    • Accessibility
    • Security
    English (United States)
    • Sitemap
    • Contact Microsoft
    • Privacy & cookies
    • Terms of use
    • Trademarks
    • Safety & eco
    • About our ads
    • © Microsoft 2020
    • Anonymous
    • Sign in
    • Spaces
    • Visual Studio
    • Visual Studio for Mac
    • .NET
    • C++
    • Azure DevOps
    • Azure DevOps Server (TFS)
    • Explore
    • Topics
    • Problems
    • Features
    • Users
    • Badges