Support MSVC's /std:c++23preview flag #13133

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1. Bob Brown (bobbrow)

   added this to cpptoolson Jan 8, 2025
2. Bob Brown (bobbrow)

   converted this from a draft issue on Jan 8, 2025
3. Bob Brown (bobbrow)

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   Feature: ConfigurationAn issue related to configuring the extension or IntelliSenseAn issue related to configuring the extension or IntelliSense

   on Jan 8, 2025
4. github-actions commented on Mar 10, 2025

   

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   This feature request is being closed due to insufficient upvotes. Please leave a 👍-upvote or 👎-downvote reaction on the issue to help us prioritize it. When enough upvotes are received, this issue will be eligible for our backlog.
5. github-actions

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   more votes neededIssues that have been postponed until more community members upvote itIssues that have been postponed until more community members upvote it

   on Mar 10, 2025
6. github-actions

   closed this as not plannedon Mar 10, 2025
7. github-actions

   added this to the Triage milestone on Mar 10, 2025
8. github-project-automation

   moved this from Todo to Done in cpptoolson Mar 10, 2025
9. Bob Brown (bobbrow)

   modified the milestones: Triage, On Deck on Mar 10, 2025
10. Bob Brown (bobbrow)

    reopened this on Mar 10, 2025
11. Bob Brown (bobbrow)

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12. Bob Brown (bobbrow)

    moved this from Done to Todo in cpptoolson Mar 10, 2025
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14. Sean McManus (sean-mcmanus)

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    Sean McManus (sean-mcmanus)

    on May 13, 2025
15. Sean McManus (sean-mcmanus)

    moved this from Triage to In progress in cpptoolson May 13, 2025
16. Sean McManus (sean-mcmanus)

    modified the milestones: Tracking, 1.26 on May 13, 2025
17. sean-mcmanus commented on May 13, 2025

    

    Sean McManus (sean-mcmanus)

    on May 13, 2025

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    Okay, I found one potential use case for libraries that check _MSVC_LANG for "202400L" or the _HAS_CXX26 version, i.e. the only current difference with MSVC mode c++23 and c++26 are with libraries that check the version.

    Also, FYI, /std:c++23preview is just the temporary name for /std:c++23 so it only needs to be handled as input and not exposed an setting, i.e. the only new user setting is c++26.
18. bobbrow commented on May 13, 2025

    

    Bob Brown (bobbrow)

    on May 13, 2025

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    Also, FYI, /std:c++23preview is just the temporary name for /std:c++23 so it only needs to be handled as input and not exposed an setting, i.e. the only new user setting is c++26.

    Yes, this is correct.
19. Sean McManus (sean-mcmanus)

    moved this from In progress to Pull Request in cpptoolson May 14, 2025
20. Sean McManus (sean-mcmanus)

    modified the milestones: 1.26, 1.26.0 on May 14, 2025
21. sean-mcmanus commented on May 14, 2025

    

    Sean McManus (sean-mcmanus)

    on May 14, 2025

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    FYI, CMake Tools doesn't currently handle this (i.e. it uses c++latest instead), so I was considering submitting a PR to fix that after vscode-cptools 6.3 is published to npm.
22. Sean McManus (sean-mcmanus)

    moved this from Pull Request to Done in cpptoolson May 20, 2025
23. Sean McManus (sean-mcmanus)

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    fixedCheck the Milestone for the release in which the fix is or will be available.Check the Milestone for the release in which the fix is or will be available.

    on May 20, 2025
24. Sean McManus (sean-mcmanus)

    closed this as completedon May 22, 2025
25. github-actions

    locked and limited conversation to collaborators on Jul 6, 2025