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Cpp/docs/latest/filesystem/directory entry/hard link count


std::uintmax_t hard_link_count() const;
std::uintmax_t hard_link_count( std::error_code& ec ) const noexcept;
(since C++17)

If the number of hard links is cached in this directory_entry, returns the cached value. Otherwise, returns std::filesystem::hard_link_count(path()) or std::filesystem::hard_link_count(path(), ec), respectively.


ec - out-parameter for error reporting in the non-throwing overload

Return value

The number of hard links for the referred-to filesystem object.


The overload that does not take a std::error_code& parameter throws filesystem_error on underlying OS API errors, constructed with p as the first path argument and the OS error code as the error code argument. The overload taking a std::error_code& parameter sets it to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur. Any overload not marked noexcept may throw std::bad_alloc if memory allocation fails.


See also


returns the number of hard links referring to the specific file


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