std::filesystem::directory_entry::is_block_file (3) - Linux Manuals

std::filesystem::directory_entry::is_block_file: std::filesystem::directory_entry::is_block_file


std::filesystem::directory_entry::is_block_file - std::filesystem::directory_entry::is_block_file


bool is_block_file() const; (since C++17)
bool is_block_file( std::error_code& ec ) const noexcept;

Checks whether the pointed-to object is a block device. Effectively returns std::filesystem::is_block_file(status()) or std::filesystem::is_block_file(status(ec)), respectively


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

Return value

true if the referred-to filesystem object is a block device, false otherwise.


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.


 This section is incomplete
 Reason: no example

See also

is_block_file checks whether the given path refers to block device