Does stl::filesystem::copy use FILE_SHARE_READ file opening attribute?

[Serg Kryvonos (ohhmm)]

Thanks,
Serg

[Charles Milette (sylveon)]

It uses CopyFile

STL/stl/src/filesystem.cpp

Line 449 in 154f9a8

[[nodiscard]] __std_fs_copy_file_result __stdcall __std_fs_copy_file(_In_z_ const wchar_t* const _Source,

[Serg Kryvonos (ohhmm)]

Thanks Charles Milette (@sylveon),

Looks like

STL/stl/src/filesystem.cpp

Line 463 in 154f9a8

// in exclusive mode, so a subsequent open will fail with ERROR_SHARING_VIOLATION.

states an issue for update_existing?

Thanks,
Serg

[Stephan T. Lavavej (StephanTLavavej)]

Note that LWG-3057 "Correct copy_options handling" remains Open.

For the Standard as currently written, we believe that our implementation is conforming. If you believe otherwise, please open an issue with a test case. Thanks!