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From: "lennoxhoe at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/113663] New: [MinGW] std::filesystem::hard_link_count always returns 1 Date: Mon, 29 Jan 2024 18:18:07 +0000 [thread overview] Message-ID: <bug-113663-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113663 Bug ID: 113663 Summary: [MinGW] std::filesystem::hard_link_count always returns 1 Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: lennoxhoe at gmail dot com Target Milestone: --- Hello! std::filesystem::hard_link_count() appears to always return 1 when built with gcc-13.2.0 + mingw-w64ucrt-11.0.1-r3 on Windows 10 19045 Stepping through with a debugger, it looks like hard_link_count() queries Windows' _wstat64() for this information. The MSFT documentation claims this is the expected behaviour for non-NTFS volumes https://learn.microsoft.com/en-us/previous-versions/visualstudio/visual-studio-2013/14h5k7ff(v=vs.120) However, in my tests both the links are located on the same NTFS volume. Furthermore, GetFileInformationByHandle does return the correct result of 2. There appears to be some precedence in calling GetFileInformationByHandle as seen in std::filesystem::equivalent. Can hard_link_count() receive the same treatment? Thanks
next reply other threads:[~2024-01-29 18:18 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-01-29 18:18 lennoxhoe at gmail dot com [this message] 2024-01-29 18:47 ` [Bug libstdc++/113663] " lennoxhoe at gmail dot com 2024-01-29 23:38 ` lennoxhoe at gmail dot com 2024-01-30 5:16 ` xry111 at gcc dot gnu.org 2024-01-30 11:59 ` redi at gcc dot gnu.org 2024-01-30 18:51 ` lennoxhoe at gmail dot com 2024-03-27 17:49 ` redi at gcc dot gnu.org
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