< cpp‎ | experimental‎ | fs
Technical specifications
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals 2 TS)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
Extensions for concurrency (concurrency TS)
Concepts (concepts TS)
Ranges (ranges TS)
Special mathematical functions (special math TR)
Defined in header <experimental/filesystem>
bool is_fifo( file_status s );
(1) (filesystem TS)
bool is_fifo( const path& p );
(2) (filesystem TS)
bool is_fifo( const path& p, error_code& ec );
(3) (filesystem TS)

Checks if the given file status or path corresponds to a FIFO or pipe file.

1) Equivalent to s.type() == file_type::fifo.
2) Equivalent to is_fifo(status(p)).
3) Equivalent to is_fifo(status(p, ec)). Returns false and sets ec to an appropriate error code if an error occurs. Otherwise, ec is cleared with a call to ec.clear().


[edit] Parameters

s - file status to check
p - path to query
ec - error code to modify in case of errors

[edit] Return value

true if the given path or file status corresponds to a FIFO file.

[edit] Exceptions

noexcept specification:  
2) Throws filesystem_error if an error occurs. The exception object is constructed with p as an argument.

[edit] See also