[fs.op.is.regular.file]

31 Input/output library [input.output]

bool filesystem::is_regular_file(file_status s) noexcept;

Returns: s.type() == file_type::regular.

bool filesystem::is_regular_file(const path& p);

Returns: is_regular_file(status(p)).

Throws: filesystem_error if status(p) would throw filesystem_error.

bool filesystem::is_regular_file(const path& p, error_code& ec) noexcept;

Effects: Sets ec as if by status(p, ec).

[Note 1:

file_type::none, file_type::not_found and file_type::unknown cases set ec to error values.

To distinguish between cases, call the status function directly.

— end note]

Returns: is_regular_file(status(p, ec)).

Returns false if an error occurs.