30 Input/output library [input.output]

30.11 File systems [filesystems]

30.11.14 Filesystem operation functions [fs.op.funcs] Create directories [fs.op.create_directories]

bool create_directories(const path& p); bool create_directories(const path& p, error_code& ec) noexcept;
Effects: Calls create_­directory() for each element of p that does not exist.
Returns: true if a new directory was created for the directory p resolves to, otherwise false.
The signature with argument ec returns false if an error occurs.
Throws: As specified in [fs.err.report].
Complexity: where n is the number of elements of p.