= private = protected
directory?(p1)
Returns true if the named file is a directory, or a symlink that points at a directory, and false otherwise.
file_name can be an IO object.
File.directory?(".")
VALUE rb_file_directory_p(VALUE obj, VALUE fname) { #ifndef S_ISDIR # define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) #endif struct stat st; if (rb_stat(fname, &st) < 0) return Qfalse; if (S_ISDIR(st.st_mode)) return Qtrue; return Qfalse; }